Synthesis and Solar Cell Application of New Alternating Donor-Acceptor Copolymers Based on Variable Units of Fluorene, Thiophene, and Phenylene


Autoria(s): Yamamoto, Natasha A. D.; Lavery, Leah L.; Nowacki, Bruno F.; Grova, Isabel R.; Whiting, Gregory L.; Krusor, Brent; de Azevedo, Eduardo R.; Akcelrud, Leni; Arias, Ana C.; Roman, Lucimara S.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

07/11/2013

07/11/2013

2012

Resumo

A new series of donor acceptor copolymers were synthesized via the Witting route and applied as an active layer in organic thin-films solar cells. These copolymers are composed of fluorene thiophene and phenylene thiophene units. The ratio between those was systematically varied, and copolymers containing 0%, 50%, and 75% of phenylene thiophene were characterized and evaluated when used in photovoltaic devices. The copolymers' composition, photophysical, electrical, and morphological properties are addressed and correlated with device performance. The 50% copolymer ratio was found to be the best copolymer of the series, yielding a power conversion efficiency (PCE) under air mass (AM) 1.5 conditions of 2.4% in the bilayer heterojunction with the C-60 molecule. Aiming at flexible electronics applications, solutions based on the heterojunction of this copolymer with PCBM (6,6-phenyl-C-61-butyric acid methyl ester) were also successfully deposited using an inkjet printing method and used as an active layer in solar cells.

CAPES

CAPES

CNPq

CNPq

Palo Alto Research Center (PARC)

Palo Alto Research Center (PARC)

INEO

INEO

Identificador

JOURNAL OF PHYSICAL CHEMISTRY C, WASHINGTON, v. 116, n. 35, supl. 1, Part 3, pp. 18641-18648, SEP 6, 2012

1932-7447

http://www.producao.usp.br/handle/BDPI/42802

10.1021/jp305427g

http://dx.doi.org/10.1021/jp305427g

Idioma(s)

eng

Publicador

AMER CHEMICAL SOC

WASHINGTON

Relação

JOURNAL OF PHYSICAL CHEMISTRY C

Direitos

closedAccess

Copyright AMER CHEMICAL SOC

Palavras-Chave #LIGHT-EMITTING POLYMERS #PHOTOVOLTAIC PERFORMANCE #POLYFLUORENE BLENDS #QUANTUM EFFICIENCY #MORPHOLOGY #ABSORPTION #ELECTROLUMINESCENCE #DEVICES #FILMS #CHEMISTRY, PHYSICAL #NANOSCIENCE & NANOTECHNOLOGY #MATERIALS SCIENCE, MULTIDISCIPLINARY
Tipo

article

original article

publishedVersion