PMID- 32776395
OWN - NLM
STAT- MEDLINE
DCOM- 20210621
LR  - 20210621
IS  - 1521-3927 (Electronic)
IS  - 1022-1336 (Linking)
VI  - 41
IP  - 21
DP  - 2020 Nov
TI  - Influence of Alkyl Substitution Position on Wide-Bandgap Polymers in 
      High-Efficiency Nonfullerene Polymer Solar Cells.
PG  - e2000170
LID - 10.1002/marc.202000170 [doi]
AB  - Two wide-bandgap (WBG) conjugated polymers (PBPD-p and PBPD-m) based on 
      phenyl-substituted benzodithiophene (BDT) with the different substitution 
      position of the alkyl side chain and benzodithiophene-4,8-dione (BDD) units are 
      designed and synthesized to investigate the influence of alkyl substitution 
      position on the photovoltaic performance of polymers in polymer solar cells 
      (PSCs). The thermogravimetric analysis, absorption spectroscopy, molecular energy 
      level, X-ray diffraction, charge transport and photovoltaic performance of the 
      polymers are systematically studied. Compared with PBPD-p, PBPD-m exhibits a 
      slight blue-shift but a deeper highest occupied molecular orbital (HOMO) energy 
      level, a tighter alkyl chain packing and a higher hole mobility. The PBPD-m-based 
      PSCs blended with acceptor IT-4F shows a higher power conversion efficiency (PCE) 
      of 11.95% with a high open-circuit voltage (V(oc) ) of 0.88 V, a short-circuit 
      current density (J(sc) ) of 19.76 mA cm(-2) and a fill factor (FF) of 68.7% when 
      compared with the PCE of 6.97% with a V(oc) of 0.81 V, a J(sc) of 15.97 mA cm(-2) 
      and an FF of 53.9% for PBPD-p. These results suggest that it is a feasible and 
      effective strategy to optimize photovoltaic properties of WBG polymers by 
      changing the substitution position of alkyl side chain in PSCs.
CI  - (c) 2020 Wiley-VCH GmbH.
FAU - Guo, Qing
AU  - Guo Q
AD  - Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical 
      Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
FAU - Li, Wanbin
AU  - Li W
AD  - Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical 
      Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
FAU - Li, Guangda
AU  - Li G
AD  - Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical 
      Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
FAU - Wang, Kun
AU  - Wang K
AD  - School of Materials and Chemical Engineering, Zhongyuan University of Technology, 
      Zhengzhou, 451191, China.
FAU - Guo, Xia
AU  - Guo X
AD  - Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical 
      Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
FAU - Zhang, Maojie
AU  - Zhang M
AD  - Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical 
      Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
FAU - Li, Yongfang
AU  - Li Y
AD  - Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical 
      Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
FAU - Wong, Wai-Yeung
AU  - Wong WY
AUID- ORCID: 0000-0002-9949-7525
AD  - Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic 
      University, Hung Hom, Hong Kong, China.
AD  - The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 
      518057, China.
LA  - eng
GR  - 51573120/National Natural Science Foundation of China/
GR  - 51773142/National Natural Science Foundation of China/
GR  - 51873176/National Natural Science Foundation of China/
GR  - 51973146/National Natural Science Foundation of China/
GR  - BK20190099/Jiangsu Provincial Natural Science Foundation/
GR  - JCYJ20180507183413211/Science, Technology and Innovation Committee of Shenzhen 
      Municipality/
GR  - PolyU123384116P/Hong Kong Research Grants Council/
GR  - Hong Kong Polytechnic University/
GR  - 20HASTIT030/Science and Technology Innovative Talents in Universities of Henan 
      Province/
GR  - 182102210530/Henan Province Science and Technology Planning Project/
GR  - 2019GGJS141/Training Plan of Young Backbone Teachers in Colleges and Universities 
      of Henan Province/
GR  - 20B150032/Key Scientific Research Projects of Higher Education Institutions of 
      Henan Province/
GR  - 2019008/Science and technology guidance program of China Textile Industry 
      Federation/
GR  - K2019YY001/Scientific research project of Zhongyuan University of Technology/
PT  - Journal Article
DEP - 20200809
PL  - Germany
TA  - Macromol Rapid Commun
JT  - Macromolecular rapid communications
JID - 9888239
RN  - 0 (Polymers)
SB  - IM
MH  - Polymers
MH  - *Solar Energy
MH  - Sunlight
OTO - NOTNLM
OT  - alkyl side chains
OT  - benzodithiophene-4,8-dione
OT  - nonfullerene polymer solar cells
OT  - substitution positions
OT  - wide bandgap polymers
EDAT- 2020/08/11 06:00
MHDA- 2021/06/22 06:00
CRDT- 2020/08/11 06:00
PHST- 2020/03/30 00:00 [received]
PHST- 2020/07/01 00:00 [revised]
PHST- 2020/08/11 06:00 [pubmed]
PHST- 2021/06/22 06:00 [medline]
PHST- 2020/08/11 06:00 [entrez]
AID - 10.1002/marc.202000170 [doi]
PST - ppublish
SO  - Macromol Rapid Commun. 2020 Nov;41(21):e2000170. doi: 10.1002/marc.202000170. 
      Epub 2020 Aug 9.