New Terthiophene-Conjugated Porphyrin Donors for Highly Efficient Organic Solar Cells
Abstract
To mimic the natural photosynthetic systems utilizing chlorophylls to absorb light and store light energy, two new porphyrin-based small molecules of PTTR and PTTCNR have been developed for photovoltaic applications. The highest power conversion efficiency of 8.21% is achieved, corresponding to a short-circuit current of 14.30 mA cm–2, open-circuit voltage of 0.82 V, and fill factor of 70.01%. The excellent device performances can be ascribed to the engineering of molecule structure and film morphology. We report the horizontal conjugation of 3,3"-dihexyl-terthiophene to porphyrin-core with the vertical aliphatic 2-octylundecyl peripheral substitutions, can not only effectively increase the solar flux coverage between the conventional Soret and Q bands of porphyrin unit, but also optimize molecular packing through polymorphism associated with side-chains and the linear π-conjugated backbones. And the additive of 1,8-diiodooctane and subsequent chloroform solvent vapor annealing facilitate the formation of the blend films with [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) characteristics of bicontinuous, interpenetrating networks required for efficient charge separation and transportation.
- Authors:
-
- South China Univ. of Technology (SCUT), Guangzhou (China). Inst. of Polymer Optoelectronic Materials and Devices, State Key Lab. of Luminescent Materials and Devices
- Hong Kong Baptist Univ., Kowloon Tong, Hong Kong (China). Dept. of Chemistry and Inst. of Advanced Materials, Inst. of Molecular Functional Materials, and Research Centre of Excellence for Organic Electronics
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Science Division
- Hong Kong Polytechnic Univ., Hung Hom, Hong Kong (China). Dept. of Applied Biology and Chemical Technology
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Polymer-Based Materials for Harvesting Solar Energy (PHaSE)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); International Science and Technology Cooperation Program of China; National Natural Science Foundation of China (NSFC); Hong Kong Research Grants Council (RGC)
- OSTI Identifier:
- 1397211
- Grant/Contract Number:
- SC0001087; 2013DFG52740; 2010DFA52150; 51473053; 51073060; 91222201; 91333206; HKBU-22304115-ECS; HKBU-203011
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Applied Materials and Interfaces
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 44; Related Information: PHaSE partners with University of Massachusetts, Amherst (lead) and Lowell; Oak Ridge National Laboratory; Pennsylvania State University; Renssalaer Polytechnic Institute; University of Pittsburgh; Journal ID: ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; porphyrin; organic solar cells; terthiophene; peripheral substitutions; molecular packing
Citation Formats
Xiao, Liangang, Chen, Song, Gao, Ke, Peng, Xiaobin, Liu, Feng, Cao, Yong, Wong, Wai-Yeung, Wong, Wai-Kwok, and Zhu, Xunjin. New Terthiophene-Conjugated Porphyrin Donors for Highly Efficient Organic Solar Cells. United States: N. p., 2016.
Web. doi:10.1021/acsami.6b09790.
Xiao, Liangang, Chen, Song, Gao, Ke, Peng, Xiaobin, Liu, Feng, Cao, Yong, Wong, Wai-Yeung, Wong, Wai-Kwok, & Zhu, Xunjin. New Terthiophene-Conjugated Porphyrin Donors for Highly Efficient Organic Solar Cells. United States. https://doi.org/10.1021/acsami.6b09790
Xiao, Liangang, Chen, Song, Gao, Ke, Peng, Xiaobin, Liu, Feng, Cao, Yong, Wong, Wai-Yeung, Wong, Wai-Kwok, and Zhu, Xunjin. Tue .
"New Terthiophene-Conjugated Porphyrin Donors for Highly Efficient Organic Solar Cells". United States. https://doi.org/10.1021/acsami.6b09790. https://www.osti.gov/servlets/purl/1397211.
@article{osti_1397211,
title = {New Terthiophene-Conjugated Porphyrin Donors for Highly Efficient Organic Solar Cells},
author = {Xiao, Liangang and Chen, Song and Gao, Ke and Peng, Xiaobin and Liu, Feng and Cao, Yong and Wong, Wai-Yeung and Wong, Wai-Kwok and Zhu, Xunjin},
abstractNote = {To mimic the natural photosynthetic systems utilizing chlorophylls to absorb light and store light energy, two new porphyrin-based small molecules of PTTR and PTTCNR have been developed for photovoltaic applications. The highest power conversion efficiency of 8.21% is achieved, corresponding to a short-circuit current of 14.30 mA cm–2, open-circuit voltage of 0.82 V, and fill factor of 70.01%. The excellent device performances can be ascribed to the engineering of molecule structure and film morphology. We report the horizontal conjugation of 3,3"-dihexyl-terthiophene to porphyrin-core with the vertical aliphatic 2-octylundecyl peripheral substitutions, can not only effectively increase the solar flux coverage between the conventional Soret and Q bands of porphyrin unit, but also optimize molecular packing through polymorphism associated with side-chains and the linear π-conjugated backbones. And the additive of 1,8-diiodooctane and subsequent chloroform solvent vapor annealing facilitate the formation of the blend films with [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) characteristics of bicontinuous, interpenetrating networks required for efficient charge separation and transportation.},
doi = {10.1021/acsami.6b09790},
journal = {ACS Applied Materials and Interfaces},
number = 44,
volume = 8,
place = {United States},
year = {Tue Oct 25 00:00:00 EDT 2016},
month = {Tue Oct 25 00:00:00 EDT 2016}
}
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