GRUPO DE DISPOSITIVOS NANOESTRUTURADOS
BENATTO, Leandro; MORAES, C. A. M; BASSI, MAIARA J.; WOUK, LUANA; ROMAN, LUCIMARA S.; KOEHLER, MARLUS. Kinetic Modeling of the Electric Field Dependent Exciton Quenching at the Donor–Acceptor Interface. THE JOURNAL OF PHYSICAL CHEMISTRY C, V. 125, 8, p. 4436-4448.
DAS NEVES, MATHEUS F.F. ; DAMASCENO, JOÃO PAULO V. ; JUNIOR, OSVALDO D.L. ; ZARBIN, A. J. G. ; ROMAN, L. S. . Conductive ink based on PEDOT nanoparticles dispersed in water without organic solvents, passivant agents or metallic residues. SYNTHETIC METALS, v. 272, p. 116657, 2021.
EISING, MARCELO ; O'CALLAGHAN, COLIN ; EDUARDO CAVA, CARLOS ; SCHMIDT, ARIANE ; GORGATTI ZARBIN, ALDO JOSÉ ; FERREIRA, MAURO S. ; Roman, Lucimara Stolz . The role of carbon nanotubes on the sensitivity of composites with polyaniline for ammonia sensors. Carbon Trends, v. 3, p. 100026, 2021.
RAMONI, MARCOS ; BASSI, MAIARA DE JESUS ; WOUK, LUANA ; PACHECO, KAIKE ROSIVAN MAIA ; FERNÁNDEZ, ANA BUZZI ; RENZI, WESLEY ; DUARTE, JOSÉ LEONIL ; ROCCO, MARIA LUIZA MIRANDA ; Roman, Lucimara Stolz . Morphology, Photoexcitation Dynamics and Stability of Water-Dispersed Nanoparticle Films based on Semiconducting Copolymer. THIN SOLID FILMS, v. 721, p. 138536, 2021.
BENATTO, L. ; MARCHIORI, C.F.N. ; TALKA, T. ; ARAMINI, M. ; Yamamoto, N.A.D. ; HUOTARI, S. ; Roman, L.S. ; KOEHLE, M. . Comparing C60 and C70 as acceptor in organic solar cells: Influence of the electronic structure and aggregation size on the photovoltaic characteristics. THIN SOLID FILMS, v. 697, p. 137827, 2020.
SOUSA, KARLISSON RODRIGO DE ALMEIDA ; BENATTO, LEANDRO ; WOUK, LUANA ; Roman, Lucimara Stolz ; Koehler, Marlus . Effects of non-halogenated solvent on the main properties of a solution-processed polymeric thin film for photovoltaic applications: a computational study. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v. 22, p. 9693-9702, 2020.
BENATTO, LEANDRO ; GOVATSKI, JONAS ALEXANDRE ; MORAES, CESAR AUGUSTO MACHADO ; GOUVÊA, CRISTOL PAIVA ; AVILA, HAROLD CAMARGO ; MARCHIORI, CLEBER FN ; OLIVEIRA, CAMILA KARLA BRITES QUEIROZ MARTINS ; CREMONA, MARCO ; Koehler, Marlus ; ROMAN, L S . Understanding the effect of solvent additive in polymeric thin film: turning a bilayer in a bulk heterojunction like photovoltaic device. JOURNAL OF PHYSICS D-APPLIED PHYSICS, v. 53, p. 365101, 2020.
BENATTO, L. ; BASSI, M. DE JESUS ; DE MENEZES, L. C. WOUK ; ROMAN, L. S. ; Koehler, M. . Kinetic model for photoluminescence quenching by selective excitation of D/A blends: implications for charge separation in fullerene and non-fullerene organic solar cells. Journal of Materials Chemistry C, v. 8, p. 8755-8769, 2020.
LOURENCO, O. D. ; RAMONI, M. ; WOUK DE MENEZES, LUANA CRISTINA ; BAGNIS, D. ; ROMAN, L S . Células Solares Orgânicas, a Energia que Vem dos Polímeros. REVISTA VIRTUAL DE QUÍMICA, v. 12, p. 583-597, 2020.
HOLAKOEI, SOHEILA ; VEIGA, AMANDA GARCEZ ; TURCI, CÁSSIA CURAN ; DAS NEVES, MATHEUS FELIPE FAGUNDES ; WOUK, LUANA ; V. DAMASCENO, JOÃO PAULO ; Zarbin, Aldo J. G. ; Roman, Lucimara S. ; Rocco, Maria Luiza M. . Conformational and Electron Dynamics Changes Induced by Cooling Treatment on GO:PEDOT:PSS Transparent Electrodes. Journal of Physical Chemistry C, v. 124, p. 26640-26647, 2020.
ROOZBEH, ASHKAN ; BASSI, MAIARA DE JESUS ; PEREIRA, ADRIANO BEZERRA ; Roman, Lucimara Stolz ; BUCKUP, TIAGO ; HEISLER, ISMAEL A. . Energy Transfer in Aqueously Dispersed Organic Semiconductor Nanoparticles. Journal of Physical Chemistry C, v. 124, p. 27946, 2020.
A. L. BORGES, BRUNO G. ; HOLAKOEI, SOHEILA ; F. DAS NEVES, MATHUES F. ; W. DE MENEZES, LUANA C. ; DE MATOS, CAROLINA F. ; Zarbin, Aldo J. G. ; Roman, Lucimara S. ; Rocco, Maria Luiza M. . Molecular orientation and femtosecond charge transfer dynamics in transparent and conductive electrodes based on graphene oxide and PEDOT:PSS composites. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v. 21, p. 736-743, 2019.
DE MATOS, CAROLINA F. ; HOLAKOEI, SOHEILA ; YAMAMOTO, NATASHA D. ; Rocco, Maria Luiza M. ; ZARBIN, ALDO J.G. ; Roman, Lucimara S. . Graphene oxide as a surfactant in the nanostructuring of a conduction polymer: Effect on the electronic structure, chain orientation, and charge transfer dynamics. ORGANIC ELECTRONICS, v. 75, p. 105440, 2019.
BORGES, B. G. A. L. ; ROMAN, L. S. ; ROCCO, M. L. M. . Femtosecond and Attosecond Electron Transfer Dynamics of Semiconductors Probed by the Core-Hole Clock Spectroscopy. TOPICS IN CATALYSIS, v. 62, p. 1004-1010, 2019.
DAS NEVES, MATHEUS FELIPE FAGUNDES ; DAMASCENO, JOÃO PAULO VITA ; HOLAKOEI, SOHEILA ; Rocco, Maria Luiza M. ; ZARBIN, ALDO JOSÉ GORGATTI ; DE OLIVEIRA, CAMILLA KARLA BRITES QUEIROZ MARTIN ; Roman, Lucimara Stolz . Enhancement of conductivity and transmittance of graphene oxide/PEDOT:PSS electrodes and the evaluation of charge transfer dynamics. JOURNAL OF APPLIED PHYSICS, v. 126, p. 215107, 2019.
WOUK DE MENEZES, LUANA CRISTINA ; RENZI, WESLEY ; MARCHIORI, CLEBER FABIANO DO NASCIMENTO ; DE OLIVEIRA, CAMILLA KARLA BRITES QUEIROZ MARTIN ; VON KIESERITZKY, FREDRIK ; DUARTE, JOSÉ LEONIL ; Roman, Lucimara Stolz . Nonradiative Energy Transfer between Porphyrin and Copolymer in Films Processed by Organic Solvent and Water-Dispersible Nanoparticles with Photovoltaic Applications. JOURNAL OF PHYSICAL CHEMISTRY. C. (ONLINE), v. 122, p. 5796-5804, 2018.
HUSMANN, SAMANTHA ; LIMA, LUCAS F. ; Roman, Lucimara S. ; Zarbin, Aldo J. G. . Photoanode for Aqueous Dye-Sensitized Solar Cells based on a Novel Multicomponent Thin Film. ChemSusChem, v. 11, p. 1238-1245, 2018.
GARCIA-BASABE, YUNIER ; CEOLIN, DENIS ; ZARBIN, A. J. G. ; ROMAN, L. S. ; ROCCO, MARIA LUIZA M. . Ultrafast interface charge transfer dynamics on P3HT/MWCNT nanocomposites probed by resonant Auger spectroscopy. RSC Advances, v. 8, p. 26416-26422, 2018.
WOUK DE MENEZES, LUANA CRISTINA ; JIN, YINGZHI ; BENATTO, LEANDRO ; WANG, CHUANFEI ; Koehler, Marlus ; ZHANG, FENGLING ; Roman, Lucimara Stolz . Charge Transfer Dynamics and Device Performance of Environmentally Friendly Processed Nonfullerene Organic Solar Cells. ACS Applied Energy Materials, v. 1, p. 4776-4785, 2018.
C. F. N. Marchiori, Y. G. Basabe, F. A. Ribeiro, M. Koehler, L. S. Roman, M. L. M. Rocco. Thermally induced anchoring of fullerene in copolymers with Si-bridging atom: Spectroscopic evidences. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy (Print), v. 171, p. 376-382, 2017.
M. Eising, C. E. Cava, R. V. Salvatierra, A. J. G. Zarbin, L. S. Roman. Doping Effect on Self-assembled Films of Polyaniline and Carbon Nanotube applied as Ammonia Gas Sensor. Sensors and Actuators. B, Chemical, v. 245, p. 25-33, 2017.
LOURENCO, O. D. ; BENATTO, L. ; Marchiori, Cleber Fabiano Do Nasimento ; AVILA, H. C. ; YAMAMOTO, N. A. D. ; OLIVEIRA, C. K. ; DA LUZ, M. G. E. ; CREMONA, M. ; Koehler, M. ; ROMAN, L. S. . Conformational Change on a Bithiophene-Based Copolymer Induced by Additive Treatment: Application in Organic Photovoltaics. Journal of Physical Chemistry C, v. 121, p. 16035-16044, 2017.
MARIANO, LUIZ C. ; SOUZA, VICTOR H.R. ; KOWALSKI, EDEMIR L. ; Rocco, Maria Luiza M. ; ZARBIN, ALDO J.G. ; Koehler, Marlus ; Roman, Lucimara S. . Electrical and morphological study of carbon nanotubes/polyaniline composite films: A model to explain different tunneling regimes induced by a vertical electric field. THIN SOLID FILMS, v. 636, p. 314-324, 2017.
GARCIA-BASABE, YUNIER ; KLADNIK, GREGOR ; Marchiori, Cleber Fabiano Do Nasimento ; DE MOURA, CARLOS E. V. ; FLOREANO, LUCA ; ROCHA, ALEXANDRE B. ; ROMAN, L. S. ; MORGANTE, ALBERTO ; CVETKO, DEAN ; ROCCO, MARIA LUIZA M. . Additive Driven Increase in Donor-Acceptor Copolymer Coupling Studied by X-ray Resonant Photoemission. Journal of Physical Chemistry C, v. 121, p. 25187-25194, 2017
L. F. Lima, C. F. Matos, L. C. Gonçalves, R. V. Salvatierra, C. E. Cava, A. J. G. Zarbin, L. S. Roman. Water based, solution-processable, transparent and flexible graphene oxide composite as electrodes in organic solar cell application. Journal of Physics. D, Applied Physics (Print), v. 49, p. 105106, 2016.
S. M. Cassemiro, I. R. Grova, C. Zanlorenzi, D. A. Turchetti, N. A. D. Yamamoto, A. G. Macedo, L. S. Roman, L. C. Akcelrud. Interplay among electronic characteristics, morphology and device efficiency in three fluorene alternated copolymers. Synthetic Metals, v. 219, p. 60-66, 2016.
R. V. Salvatierra, C. E. Cava, L. S. Roman, M. M. Oliveira, A. J. G. Zarbin. The total chemical synthesis of polymer/graphene nanocomposite films. Chemical Communications (London. 1996. Print), v. 52, p. 1629-1632, 2016.
B. G. A. L. Borges, C. F. N. Marchiori, M. Glaser, Y. G. Basabe, C. E. V. Moura, A. B. Rocha, L. S. Roman, T. Chassé, M. B. Casu, M. L. M. Rocco. Electronic and structural properties in thermally annealed PSiF-DBT:PC71BM blends for organic photovoltaics. Thin Solid Films, v. 615, p. 165-170, 2016.
C. F. N. Marchiori, N. A. D. Yamamoto, C. F. Matos, J. Kujala, A. G. Macedo, F. Tuomisto, A. J. G. Zarbin, M. Koehler, L. S. Roman. Annealing effect on donor-acceptor interface and its impact on the performance of organic photovoltaic devices based on PSiF-DBT copolymer and C60. Applied Physics Letters, v. 106, p. 133301, 2015.
N. A. D. Yamamoto, M. E. Payne, M. Koehler, A. Facchetti, L. S. Roman, A. C. Arias. Charge transport model for photovoltaic devices based on printed polymer: Fullerene nanoparticles. Solar Energy Materials and Solar Cells, v. 141, p. 171-177, 2015.
Y. G. Basabe, N. A. D. Yamamoto, L. S. Roman, M. L. M. Rocco. The effect of thermal annealing on the charge transfer dynamics of a donor-acceptor copolymer and fullerene: F8T2 and F8T2:PCBM. PCCP. Physical Chemistry Chemical Physics (Print), v. 17, p. 11244-11251, 2015.
E. R. Triboni, M. R. Fernandes, J. R. Garcia, M. C. Carreira, R. G. S. Berlinck, P. B. Filho, L. S. Roman, I. A. Hümmelgen, R. Reyes, M. Cremona. Naphthalimide-derivative with blue electroluminescence for OLED applications. Journal of Taibah University for Science, v. 9, p. 579-585, 2015.
C. E. Cava, C. Persson, A. J. G. Zarbin, L. S. Roman. Resistive switching in iron-oxide-filled carbon nanotubes. Nanoscale (Print), v. 6, p. 378-384, 2014.
Y. G. Basabe, C. F. N. Marchiori, B. G. A. L. Borges, N. A. D. Yamamoto, A. G. Macedo, L. S. Roman, M. Koehler, M. L. M. Rocco. Electronic structure, molecular orientation, charge transfer dynamics and solar cells performance in donor/acceptor copolymers and fullerene: Experimental and theoretical approaches. Journal of Applied Physics, v. 115, p. 134901, 2014.
L. C. Mariano, R. V. Salvatierra, C. E. Cava, M. Koehler, A. J. G. Zarbin, L. S. Roman. Electrical Properties of Self-Assembled Films of Polyaniline/Carbon Nanotubes Composites. Journal of Physical Chemistry. C, v. 118, p. 24811-24818, 2014.
M. L. M. Rocco, Y. G. Basabe, C. F. N. Marchiori, C. E. Moura, A. B. Rocha, L. S. Roman. Charge Transfer Dynamics and Molecular Orientation Probed by Core Electron Spectroscopies on thermal-annealed Polysilafluorene Derivative: Experimental and Theoretical Approaches. Journal of Physical Chemistry. C, v. 118, p. 23863-23873, 2014.
M. V. Madsen, L. S. Roman, F. C. Krebs, et al. Worldwide outdoor round robin study of organic photovoltaic devices and modules. Solar Energy Materials and Solar Cells, v. 130, p. 281-290, 2014.
R. V. Salvatierra, C. E. Cava, L. S. Roman, A. J. G. Zarbin. ITO-Free and Flexible Organic Photovoltaic Device Based on High Transparent and Conductive Polyaniline/Carbon Nanotube Thin Films. Advanced Functional Materials (Print), v. 23, p. 1490-1499, 2013.
A. G. Macedo, D. C. Silva, N. A. D. Yamamoto, L. Micaroni, R. M. Q. Mello, L. S. Roman. Bilayer and bulk heterojunction solar cells with functional poly(2,2 -bithiophene) films electrochemically deposited from aqueous emulsion. Synthetic Metals, v. 170, p. 63-68, 2013.
C. E. Cava, L. S. Roman, C. Persson. Effects of native defects on the structural and magnetic properties of hematite α-Fe_{2}O_{3}. Physical Review B, v. 88, p. 045136, 2013.
N. A. D. Yamamoto, L. F. Lima, R. E. Perdomo, R. Valaski, V. L. Calil, A. G. Macedo, M. Cremona, L. S. Roman. Modification of PEDOT:PSS anode buffer layer with HFA for flexible polymer solar cells. Chemical Physics Letters (Print), v. 572, p. 73-77, 2013.
M. Koehler, N. A. D. Yamamoto, A. G. Macedo, D. Z. Grodniski, L. S. Roman, M. G. E. Luz. The current-voltage characteristics of polymer/C60 diodes in the dark: A direct way to assess photovoltaic devices efficiency parameters. Applied Physics Letters, v. 103, p. 033304, 2013.
I. R. Grova, A. G. Macedo, L. S. Roman, L. Akcelrud. Correlations between the number of thiophene units and the photovoltaic behavior of fluorene-oligothiophene copolymers. European Polymer Journal, v. 49, p. 3539-3547, 2013.
Y. G. Basabe, B. G. A. L. Borges, D. C. Silva, A. G. Macedo, L. Micaroni, L. S. Roman, M. L. M. Rocco. The interplay of electronic structure, molecular orientation and charge transport in organic semiconductors: Poly(thiophene) and poly(bithiophene). Organic Electronics (Print), v. 14, p. 2980-2986, 2013.
J. R. S. Rita, B. G. A. L. Borges, B. Beck, L. S. Roman, M. L. M. Rocco. Electron and Photon Stimulated Ion Desorption from Poly(thiophene). Journal of the Brazilian Chemical Society (Impresso), v. 24, p. 615-620, 2013.
M. L. M. Rocco, C. Arantes, B. G. A. L. Borges, B. Beck, G. S. Araújo, L. S. Roman. Femtosecond Electron Delocalization in Poly(thiophene) Probed by Resonant Auger Spectroscopy. Journal of Physical Chemistry. C, p. 8208-8213, 2013.
N. A. D. Yamamoto, A. G. Macedo, L. S. Roman. Thickness Effect on F8T2/C60 Bilayer Photovoltaic Devices. Journal of Nanotechnology, v. 2012, p. 1-5, 2012.
A. G. Macedo, L. L. Mattos, E. R. Spada, R. B. Serpa, C. S. Campos, I. R. Grova, L. Ackcelrud, F. T. Reis, M. L. Sartorelli, L. S. Roman. Preparation of porous titanium oxide films onto indium tin oxide for application in organic photovoltaic devices. Applied Surface Science, v. 258, p. 5375-5379, 2012.
C. E. Cava, R. V. Salvatierra, D. C. B. Alves, A. S. Ferlauto, A. J. G. Zarbin, L. S. Roman. Self-assembled films of multi-wall carbon nanotubes used in gas sensors to increase the sensitivity limit for oxygen detection. Carbon (New York), v. 50, p. 1953-1958, 2012.
N. A. D. Yamamoto; L. L. Lavery, B. F. Nowacki, I. R. Grova, G. L. Whiting, B. Krusor, E. R. Azevedo, L. Akcelrud, A. C. Arias, L. S. Roman. Synthesis and Solar Cell Application of New Alternating Donor Acceptor Copolymers Based on Variable Units of Fluorene, Thiophene, and Phenylene. Journal of Physical Chemistry. C. (Online), v. 116, p. 18641-18648, 2012.
N. A. D. Yamamoto, D. C. Silva, I. R. Grova, A. G. Macedo, C. F. N. Marchiori, M. Koehler, L. Akcelrud, L. S. Roman. Effect of the Temperature of Annealing on the Performance of Fluorene and Bithiophene Copolymer in Bilayer Solar Cells. MRS Proceedings, v. 1390, p. h13-65, 2012.
N. A. D. Yamamoto, C. F. N. Marchiori, I. R. Grova, A. G. Macedo, M. Paulus, C. Sternemann, S. Huotari, L. Akcelrud, L. S. Roman, M. Koehler. Performance of fluorene and terthiophene copolymer in bilayer photovoltaic devices: The role of the polymer conformations. Organic Electronics (Print), v. 13, p. 2716-2726, 2012.
O. M. Tanaka, B. B. Cerci, L. S. Roman, O. G. Filho, E. S. Camargo. Dental enamel roughness with different acid etching times: Atomic force microscopy study. European Journal of General Dentistry, v. 1, p. 187, 2012.
C. D. Canestraro, P. C. Rodrigues, C. F. N. Marchiori, C. B. Schneider, L. Akcelrud, M. Koehler, L. S. Roman. The role of the double peaked absorption spectrum in the efficiency of solar cells based on donor acceptor donor copolymers. Solar Energy Materials and Solar Cells, v. 95, p. 2287-2294, 2011.
J. R. S. Rita, C. A. Arantes, G. Araújo, L. S. Roman, L. Micaroni, M. L. M. Rocco. Photoabsorption and desorption studies on thiophene-based polymers following sulphur K-shell excitation. Journal of Electron Spectroscopy and Related Phenomena (Print), v. 184, p. 265-269, 2011.
A. G. Macedo, C. F. N. Marchiori; I. R. Grova, L. Akcelrud, M. Koehler, L. S. Roman. Hole mobility effect in the efficiency of bilayer heterojunction polymer/C60 photovoltaic cells. Applied Physics Letters, v. 98, p. 253501-1-253501-3, 2011.
F. M. Nodari, R. L Patyk, L. S. Roman, A. R. V. Benvenho, I. A. Hümmelgen, E. K. C. Yoshikawa, J. Gruber. Electrical and optical properties of poly(2-dodecanoylsulfanyl-p-phenylenevnylene) and its application in electroluminescent devices. Journal of Materials Science. Materials in Electronics, p. 1573-482X, 2010.
M. A. L. Reis, F. Thomazi, J. Del Nero, L. S. Roman. Development of a Chemiresistor Sensor Based on Polymers-Dye Blend for Detection of Ethanol Vapor. Sensors (Basel), v. 10, p. 2812-2820, 2010.
R. Valaski, N. A. D. Yamamoto, C. D. Canestraro, L. Micaroni, R. M. Q. Mello, W. G. Quirino, C. Legani, C.A. Achete, L. S. Roman, M. Cremona. Polythiophene thin films electrochemically deposited on sol gel based TiO2 for photovoltaic applications. Thin Solid Films, v. 519, p. 1511-1515, 2010.
M. A. L. Reis, T. C. S. Ribeiro, C. E. Cava, L. S. Roman, J. Del Nero. Theoretical and experimental investigation into environment dependence and electric properties for volatile memory based on methyl-red dye thin film. Solid-State Electronics, v. 54, p. 1697-1700, 2010.
G. Araújo, C. Arantes, L. S. Roman, A. J. G. Zarbin, M. L. M. Rocco. Photoabsorption and desorption studies on poly-3-hexylthiophene/multi-walled carbon nanotube composite films. Surface Science, v. 603, p. 647-652, 2009.
C. D. Canestraro, C. Persson, L. S. Polarization dependence of the optical response in SnO2 and the effects from heavily F doping. Thin Solid Films, v. 517, p. 6301-6304, 2009.
S. M. Cassemiro, F. Thomazi, L. S. Roman, A. Marletta, L. Akcelrud. Effect of conjugation length on photophysical properties of a conjugated non-conjugated multiblock copolymer. Synthetic Metals, v. 159, p. 1975-1982, 2009.
F. Thomazi, L. S. Roman, A. F. da Silva, C. Persson. Optical absorption of rutile SnO2 and TiO2. Physica Status Solidi. C, Current Topics in Solid State Physics (Print), v. 6, p. 2740-2742, 2009.
A. G. Macedo, F. Zanetti, A. Mikowski, J. C. Hummelen, C. M. Lepienski, M. G. E. da Luz, L. S. Roman. Improving light harvesting in polymer photodetector devices through nanoindented metal mask films. Journal of Applied Physics, v. 104, p. 033714, 2008.
C. D. Canestraro, M. M. Oliveira, R. Valaski, M. V. S. da Silva, D. David, I. Pepe, A. F. Silva, L. S. Roman, C. Persson. Strong inter-conduction-band absorption in heavily fluorine doped tin oxide. Applied Surface Science, v. 255, p. 1874-1879, 2008.
A. G. Macedo, E. Vasconcelos, R. Valaski; F. Muchenski, E. Silva, A. Silva, L. S. Roman. Enhanced lifetime in porous silicon light-emitting diodes with fluorine doped tin oxide electrodes. Thin Solid Films, v. 517, p. 870-873, 2008.
R. Valaski, C. Canestraro, L. Micaroni, R. Mello, L. S. Roman. Organic photovoltaic devices based on polythiophene films electrodeposited on FTO substrates. Solar Energy Materials and Solar Cells, v. 91, p. 684-688, 2007.
C. E. Cava, R. Possagno, M. C. Schnitzler, P. C. Roman, M. M. Oliveira, C. M. Lepienski, A. J. G. Zarbin, L. S. Roman. Iron- and iron oxide-filled multi-walled carbon nanotubes: electrical properties and memory devices. Chemical Physics Letters, v. 444, p. 304-308, 2007.
M. Koehler, C. D. Canestraro, M. C. Schnitzler, M. M. Oliveira, A. J. G. Zarbin, L. S. Roman, M. G. E. da Luz. Evidence of fractal structure for charge transport in carbon-nanotube/conjugated-polymer composites. Europhysics Letters, v. 79, p. 47011-47017, 2007.
E. Burkarter, C. K. Saul, F. Thomazi, N. C. Cruz, L. S. Roman, W. H. Schreiner. Superhydrophobic electrosprayed PTFE. Surface and Coatings Technology, v. 202, p. 194-198, 2007.
R. R. Rosa, M. P. M. A. Baroni, G. T. Zaniboni, A. F. Silva, L. S. Roman, J. Pontes, M. J. A. Bolzan. Structural complexity of disordered surfaces: Analyzing the porous silicon SFM patterns. Physica. A, v. 386, p. 666-673, 2007.
E. Burkarter, C. K. Saul, F. Thomazi, C. C. Nilson, M. Z. Silvio, L. S. Roman, W. H. Schreiner. Electrosprayed superhydrophobic PTFE: a non-contaminating surface. Journal of Physics. D, Applied Physics, v. 40, p. 7778-7781, 2007.
C. D. Canestraro, M. C. Schnitzler, M. G. E. da Luz, A. J. G. Zarbin, L. S. Roman. Carbon nanotubes based nanocomposites for photocurrent improvement. Applied Surface Science, v. 252, n.15, p. 5575-5578, 2006.
L. S. Roman, R. Valaski, C. D. Canestraro, C. Persson, I. Pepe, E. F. Silva, A. F. Silva. Optical Band-Edge Absorption of Oxide Compound SnO2. Applied Surface Science, v. 252, p. 5361-5364, 2006.
M. P. M. A. Baroni, M. V. Conceicao, R. R. Rosa, C. Persson; H. Arwin, L. S. Roman, E. F. Silva, O. Nakamura, I. Pepe, A. F. Silva. OPTICAL, THERMAL AND STRUCTURAL PROPERTIES OF POROUS DIAMOND-LIKE-CARBON FILMS DEPOSITED BY MAGNETRON SPUTTERING. Journal of Non-Crystalline Solids, v. 352, p. 3734-3738, 2006.
R. Valaski, F. Muchenski, R. M. Q. Mello, L. Micaroni, L. S. Roman, I. A. Hümmelgen. Sulfonated polyaniline/poly(3-methylthiophene)-based photovoltaic devices. Journal of Solid State Electrochemistry (Print), v. 10, p. 24-27, 2006.
M. P. M. A. Baroni, R. R. Rosa, A. F. Silva, I. Pepe, L. S. Roman, F. M. Ramos, R. Ahuja, C. Persson, E. Veje. Modeling and gradient pattern analysis of irregular SFM structures of porous silicon. Microelectronics Journal, v. 37, p. 290-294, 2006.
M. M. Oliveira, E. Castro, C. D. Canestraro, D. Zanchet, D. Ugarte, L. S. Roman, A. J. G. Zarbin. A simple two-phase route to silver nanoparticles/polyaniline structures. Journal of Physical Chemistry. B, v. 110, p. 17063-17069, 2006.
R. Valaski, F. Muchenski, R. M. Q. Mello, L. Micaroni ; L. S. Roman, I. A. Hümmelgen. Sulfonated polyanilene/poly(3-methylthiophene)-based photovoltaic devices. Journal of Solid State Electrochemistry, EUA, v. 10, p. 24-27, 2006.
F. M. Nodari, M. Koehler, M. G. E. da Luz, L. S. Roman. Electrical aspects of photovoltaic devices based on bi-layer organic semiconducting materials. Microelectronics Journal, v. 36, n.11, p. 995-997, 2005.
M. V. Conceicao, O. Nakamura, A. F. Silva, L. V. Santos, V. J. T. Airoldi, L. S. Roman. Photoacoustic investigations of optical absorption, photoluminesce, and thermal diffusivity of porous diamond like carbon films. Journal de Physique. IV, França, v. 125, p. 293-295, 2005.
A. G. Macedo, C. E. Cava, C. D. Canestraro, L. Contini, L. S. Roman. Morphology Dependence on Fluorine Doped Tin Oxide Film Thickness Studied With Atomic Force Microscopy. Microscopy & Microanalysis, v. 11, p. 118-121, 2005.
L. S. Roman. Polymer based devices. Metals, Materials and processes, Meshap SciencePublishers, Mumb, v. 17, n.3, p. 219-232, 2005.
A. Y. Natori, C. D. Canestraro, L. S. Roman, A. M. Ceschin. Modification of electrical resistance of ink jet printed organic conducting films by changing of the plastic substrate. Materials Science and Engineering. B, Solid State Materials for Advanced Technology, Irlanda, v. 122, n.3, p. 231-235, 2005.
G. V. Mota, D. E. Weibel, L. S. Roman, L. Micaroni, M. L. M. Rocco. IRRADIAÇÃO DE POLÍMEROS COM LUZ SÍNCROTRON: DESSORÇÃO IÔNICA E FOTODEGRADAÇÃO DO POLI(3-METILTIOFENO). Revista brasileira de aplicações de vácuo, Brasil, v. 24, p. 67-70, 2005.
L. S. Roman, R. M. Q. Mello, F. Cunha, I. A. Hümmelgen. An electrochemically synthesized sulfonated polyaniline layer for positive charge carrier injection improvement in conjugated polymer devices.. Journal of Solid State Electrochemistry, New York, v. 8, n.2, p. 118-121, 2004.
R. Valaski, R. L. Lessmann, L. S. Roman, I. A. Hümmelgen, R. M. Q. Mello, L. Micaroni. Poly(3-methylthiophene)-based photovoltaic devices prepared onto tin-oxide/sulfonated-polyaniline electrodes. Electrochemistry Communications, New York - USA, v. 6, n.4, p. 357-360, 2004.
M. Koehler, L. S. Roman, O. Inganäs, M. G. E. da Luz. Modeling bilayer polymer/fullerene photovoltaic devices. Journal of Applied Physics, Estados Unidos, v. 96, p. 40-43, 2004.
M. L. M. Rocco, D. E. Weibel, L. S. Roman, L. Micaroni. Photon stimulated ion desorption from poly(3-methylthiophene) following sulfur K-shell excitation. Surface Science, EUA, v. 560, n.1, p. 45-52, 2004.
C. E. Foester, F. C. Serbena, I. T. S. Garcia, C. M. Lipienski, L. S. Roman; J. R. Galvao, F. C. Zawislak. Mechanical properties of polyhedral oligomeric silsesquioxane (POSS) thin films submitted to Si irradiation. Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms, New York, v. 218, p. 375-380, 2004.
I. A. Hümmelgen, R. Valaski, L. S. Roman, E. C. Rios, L. Micaroni, R. M. Q. Mello. Photovoltaics based on thin electrodeposited bilayers of poly(3-methylthiophene) and polypyrrole. Physica Status Solidi. A, Applied Research, WEINHEIM, v. 201, n.5, p. 842-849, 2004.
R. R. Rosa, A. F. Silva, R. C. Brito, L. S. Roman; M. P. M. A. Baroni, F. M. Ramos, R. Ahuja, C. Persson. Structural Flyby Characterization of Nanoporosity.. Physica Status Solidi. C, Conferences and Critical Reviews, v. 1, p. 77-81, 2004.