In this work, a new benzo1,2-b:4,5-b′dithiophene (BDT) building block containing alkylthio naphthyl as a side chain is designed and synthesized, and the resulting polymer, namely PBDTNS-BDD, shows a lower HOMO energy level than that of its alkoxyl naphthyl counterpart PBDTNO-BDD. An optimized photovoltaic device using PBDTNS-BDD as a donor exhibits power conversion efficiencies (PCE) of 8.70% and 9.28% with the fullerene derivative PC71BM and the fullerene-free small molecule ITIC as acceptors, respectively. Surprisingly, ternary blend devices based on PBDTNS-BDD and two acceptors, namely PC71BM and ITIC, shows a PCE of 11.21%, which is much higher than that of PBDTNO-BDD based ternary devices (7.85%) even under optimized conditions.
%0 Journal Article
%1 AENM:AENM201702489
%A Huang, Gongyue
%A Zhang, Jun
%A Uranbileg, Nergui
%A Chen, Weichao
%A Jiang, Huanxiang
%A Tan, Hua
%A Zhu, Weiguo
%A Yang, Renqiang
%D 2017
%J Advanced Energy Materials
%K active_layer new_material organic
%P n/a--n/a
%R 10.1002/aenm.201702489
%T Significantly Enhancing the Efficiency of a New Light-Harvesting Polymer with Alkylthio naphthyl Substituents Compared to Their Alkoxyl Analogs
%U http://dx.doi.org/10.1002/aenm.201702489
%X In this work, a new benzo1,2-b:4,5-b′dithiophene (BDT) building block containing alkylthio naphthyl as a side chain is designed and synthesized, and the resulting polymer, namely PBDTNS-BDD, shows a lower HOMO energy level than that of its alkoxyl naphthyl counterpart PBDTNO-BDD. An optimized photovoltaic device using PBDTNS-BDD as a donor exhibits power conversion efficiencies (PCE) of 8.70% and 9.28% with the fullerene derivative PC71BM and the fullerene-free small molecule ITIC as acceptors, respectively. Surprisingly, ternary blend devices based on PBDTNS-BDD and two acceptors, namely PC71BM and ITIC, shows a PCE of 11.21%, which is much higher than that of PBDTNO-BDD based ternary devices (7.85%) even under optimized conditions.
@article{AENM:AENM201702489,
abstract = {In this work, a new benzo[1,2-b:4,5-b′]dithiophene (BDT) building block containing alkylthio naphthyl as a side chain is designed and synthesized, and the resulting polymer, namely PBDTNS-BDD, shows a lower HOMO energy level than that of its alkoxyl naphthyl counterpart PBDTNO-BDD. An optimized photovoltaic device using PBDTNS-BDD as a donor exhibits power conversion efficiencies (PCE) of 8.70% and 9.28% with the fullerene derivative PC71BM and the fullerene-free small molecule ITIC as acceptors, respectively. Surprisingly, ternary blend devices based on PBDTNS-BDD and two acceptors, namely PC71BM and ITIC, shows a PCE of 11.21%, which is much higher than that of PBDTNO-BDD based ternary devices (7.85%) even under optimized conditions.},
added-at = {2018-01-29T15:40:51.000+0100},
author = {Huang, Gongyue and Zhang, Jun and Uranbileg, Nergui and Chen, Weichao and Jiang, Huanxiang and Tan, Hua and Zhu, Weiguo and Yang, Renqiang},
biburl = {https://www.bibsonomy.org/bibtex/2eaa112b5536641d738a5fbd8d7341577/bretschneider_m},
description = {onlinelibrary.wiley.com/doi/10.1002/aenm.201702489/epdf},
doi = {10.1002/aenm.201702489},
interhash = {06072884fe01bdcf3e3140594a83684b},
intrahash = {eaa112b5536641d738a5fbd8d7341577},
issn = {1614-6840},
journal = {Advanced Energy Materials},
keywords = {active_layer new_material organic},
pages = {n/a--n/a},
timestamp = {2018-01-29T15:40:51.000+0100},
title = {Significantly Enhancing the Efficiency of a New Light-Harvesting Polymer with Alkylthio naphthyl Substituents Compared to Their Alkoxyl Analogs},
url = {http://dx.doi.org/10.1002/aenm.201702489},
year = 2017
}