%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 }