PMID- 34773418
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220203
IS  - 1521-4095 (Electronic)
IS  - 0935-9648 (Linking)
VI  - 34
IP  - 5
DP  - 2022 Feb
TI  - High Miscibility Compatible with Ordered Molecular Packing Enables an Excellent 
      Efficiency of 16.2% in All-Small-Molecule Organic Solar Cells.
PG  - e2106316
LID - 10.1002/adma.202106316 [doi]
AB  - In all-small-molecule organic solar cells (ASM-OSCs), a high short-circuit 
      current (J(sc) ) usually needs a small phase separation, while a high fill factor 
      (FF) is generally realized in a highly ordered packing system. However, small 
      domain and ordered packing always conflicted each other in ASM-OSCs, leading to a 
      mutually restricted J(sc) and FF. In this study, alleviation of the previous 
      dilemma by the strategy of obtaining simultaneous good miscibility and ordered 
      packing through modulating homo- and heteromolecular interactions is proposed. By 
      moving the alkyl-thiolation side chains from the para- to the meta-position in 
      the small-molecule donor, the surface tension and molecular planarity are 
      synchronously enhanced, resulting in compatible properties of good miscibility 
      with acceptor BTP-eC9 and strong self-assembly ability. As a result, an optimized 
      morphology with multi-length-scale domains and highly ordered packing is 
      realized. The device exhibits a long carrier lifetime (39.8 mus) and fast charge 
      collection (15.5 ns). A record efficiency of 16.2% with a high FF of 75.6% and a 
      J(sc) of 25.4 mA cm(-2) in the ASM-OSCs is obtained. These results demonstrate 
      that the strategy of simultaneously obtaining good miscibility with high 
      crystallinity could be an efficient photovoltaic material design principle for 
      high-performance ASM-OSCs.
CI  - (c) 2021 Wiley-VCH GmbH.
FAU - Zhang, Lili
AU  - Zhang L
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
AD  - Sino-Danish Center for Education and Research, Sino-Danish College, University of 
      Chinese Academy of Sciences, Beijing, 100049, China.
FAU - Zhu, Xiangwei
AU  - Zhu X
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Deng, Dan
AU  - Deng D
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Wang, Zhen
AU  - Wang Z
AD  - Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), 
      North Carolina State University, Raleigh, NC, 27695, USA.
FAU - Zhang, Ziqi
AU  - Zhang Z
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Li, Yi
AU  - Li Y
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Zhang, Jianqi
AU  - Zhang J
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Lv, Kun
AU  - Lv K
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Liu, Lixuan
AU  - Liu L
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Zhang, Xuning
AU  - Zhang X
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Zhou, Huiqiong
AU  - Zhou H
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
FAU - Ade, Harald
AU  - Ade H
AD  - Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), 
      North Carolina State University, Raleigh, NC, 27695, USA.
FAU - Wei, Zhixiang
AU  - Wei Z
AUID- ORCID: 0000-0001-6188-3634
AD  - CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for 
      Excellence in Nanoscience, National Center for Nanoscience and Technology, 
      Beijing, 100190, China.
LA  - eng
GR  - 51973044/National Natural Science Foundation of China/
GR  - 21721002/National Natural Science Foundation of China/
GR  - 51961135103/National Natural Science Foundation of China/
GR  - Youth Innovation Promotion Association/
GR  - Chinese Academy of Sciences/
GR  - XDB36000000/Strategic Priority Research Program of Chinese Academy of Sciences/
GR  - Office of Science/
GR  - Basic Energy Sciences/
GR  - DE-AC02-05CH11231/U.S. Department of Energy/
GR  - N000142012155/U.S. Department of Energy/
PT  - Journal Article
DEP - 20211213
PL  - Germany
TA  - Adv Mater
JT  - Advanced materials (Deerfield Beach, Fla.)
JID - 9885358
SB  - IM
OTO - NOTNLM
OT  - all-small-molecule solar cells
OT  - miscibility
OT  - ordered molecular packing
OT  - organic solar cells
OT  - phase separation
EDAT- 2021/11/14 06:00
MHDA- 2021/11/14 06:01
CRDT- 2021/11/13 08:35
PHST- 2021/09/27 00:00 [revised]
PHST- 2021/08/12 00:00 [received]
PHST- 2021/11/14 06:00 [pubmed]
PHST- 2021/11/14 06:01 [medline]
PHST- 2021/11/13 08:35 [entrez]
AID - 10.1002/adma.202106316 [doi]
PST - ppublish
SO  - Adv Mater. 2022 Feb;34(5):e2106316. doi: 10.1002/adma.202106316. Epub 2021 Dec 
      13.