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Title: Optoelectronic properties and charge transfer in donor-acceptor all-conjugated diblock copolymers.

Abstract

All-conjugated block copolymers, which can self-assemble into well-ordered morphologies, provide exciting opportunities to rationally design and control the nanoscale organization of electron-donor and electron-acceptor moieties in optoelectronic active layers. Here we report on the steady-state and time-resolved optical characterization of block copolymer films and solutions containing poly(3-hexylthiophene) as the donor block and poly(9,9-dioctylfluorene) with and without copolymerization with benzothiadiazole as the acceptor block. Transient absorption measurements suggest rapid charge transfer occurs in both systems, with higher efficiency observed in the latter composition. These results indicate that this class of materials has promise in preparing highly ordered bulk heterojunction all-polymer organic photovoltaic devices.

Authors:
; ; ;  [1]
  1. Center for Nanoscale Materials
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Welch Foundation; Louis Owen Foundation; Rice Univ. School of Engineering
OSTI Identifier:
1015945
Report Number(s):
ANL/CNM/JA-68807
Journal ID: 1932-7447; TRN: US201112%%79
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
J. Phys. Chem. C
Additional Journal Information:
Journal Volume: 115; Journal Issue: 18 ; May 12, 2011
Country of Publication:
United States
Language:
ENGLISH
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; BINDING ENERGY; COPOLYMERIZATION; COPOLYMERS; DESIGN; EFFICIENCY; ELECTRONS; HETEROJUNCTIONS; TRANSIENTS; VALENCE

Citation Formats

Botiz, I, Schaller, R D, Verduzco, R, Darling, S B, NWU), and Rice Univ.). Optoelectronic properties and charge transfer in donor-acceptor all-conjugated diblock copolymers.. United States: N. p., 2011. Web. doi:10.1021/jp201344p.
Botiz, I, Schaller, R D, Verduzco, R, Darling, S B, NWU), & Rice Univ.). Optoelectronic properties and charge transfer in donor-acceptor all-conjugated diblock copolymers.. United States. doi:10.1021/jp201344p.
Botiz, I, Schaller, R D, Verduzco, R, Darling, S B, NWU), and Rice Univ.). Thu . "Optoelectronic properties and charge transfer in donor-acceptor all-conjugated diblock copolymers.". United States. doi:10.1021/jp201344p.
@article{osti_1015945,
title = {Optoelectronic properties and charge transfer in donor-acceptor all-conjugated diblock copolymers.},
author = {Botiz, I and Schaller, R D and Verduzco, R and Darling, S B and NWU) and Rice Univ.)},
abstractNote = {All-conjugated block copolymers, which can self-assemble into well-ordered morphologies, provide exciting opportunities to rationally design and control the nanoscale organization of electron-donor and electron-acceptor moieties in optoelectronic active layers. Here we report on the steady-state and time-resolved optical characterization of block copolymer films and solutions containing poly(3-hexylthiophene) as the donor block and poly(9,9-dioctylfluorene) with and without copolymerization with benzothiadiazole as the acceptor block. Transient absorption measurements suggest rapid charge transfer occurs in both systems, with higher efficiency observed in the latter composition. These results indicate that this class of materials has promise in preparing highly ordered bulk heterojunction all-polymer organic photovoltaic devices.},
doi = {10.1021/jp201344p},
journal = {J. Phys. Chem. C},
number = 18 ; May 12, 2011,
volume = 115,
place = {United States},
year = {2011},
month = {5}
}