QIBEBT-IR
An effective strategy for controlling the morphology of high-performance non-fullerene polymer solar cells without post-treatment: employing bare rigid aryl rings as lever arms in new asymmetric benzodithiophene
Liu, Deyu1,2; Zhang, Kaili1; Zhong, Yaqian1; Gu, Chunyang1; Li, Yonghai1; Yang, Renqiang1
2018-10-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume6Issue:37Pages:18125-18132
AbstractAlmost all high-performance non-fullerene polymer solar cells (NF-PSCs) require the optimization of the morphologies of active layers using additional complicated treatments, such as solvent additive processing and thermal annealing. There are still no guidelines currently available regarding controlling the morphologies of polymer donor and fused-ring acceptor blends from a structural point of view to avoid additional post-treatments. Here, we propose an efficient strategy to design polymers that can generate preferred morphologies and then be used to fabricate as-cast high-performance NF-PSCs. New asymmetric benzodithiophene (BDT) building blocks are employed to construct these polymers. The thienylthiol group with a long alkyl chain as one side substituent on BDT can modulate energy levels, broaden absorption spectra and improve solubility. For the key other side chain, bare rigid aryl rings (benzene, naphthalene and biphenyl) are used as lever arms to stir well the elongated acceptor (ITIC) phase and weaken entanglements among polymer chains during the spin-coating process, which enables favorable morphologies without any post-treatments. Finally, the polymer PBDTTAZ-NaPh yielded a power conversion efficiency (PCE) of 11.56%, which is a rare high value for as-cast NF-PSCs. Thus, it would be feasible to employ this proposed strategy to design high-performance NF-PSCs without post-treatment that meet the requirements for future industry-scale production.
DOI10.1039/c8ta07134a
WOS KeywordOPEN-CIRCUIT VOLTAGE ; ELECTRON-ACCEPTOR ; PHOTOVOLTAIC DEVICES ; SIDE-CHAIN ; ORGANIC PHOTOVOLTAICS ; EFFICIENCY ; DESIGN ; ALKYLTHIO ; STABILITY ; ENABLES
Language英语
Funding ProjectNatural Science Foundation of China[51573205] ; Natural Science Foundation of China[51773220] ; Natural Science Foundation of China[21502205] ; Ministry of Science and Technology of China[2014CB643501] ; DICP QIBEBT[UN201709] ; Dalian National Laboratory for Clean Energy (DNL), CAS
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
Funding OrganizationNatural Science Foundation of China ; Ministry of Science and Technology of China ; DICP QIBEBT ; Dalian National Laboratory for Clean Energy (DNL), CAS
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000448340100029
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/11217
Collection中国科学院青岛生物能源与过程研究所
Corresponding AuthorYang, Renqiang
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Deyu,Zhang, Kaili,Zhong, Yaqian,et al. An effective strategy for controlling the morphology of high-performance non-fullerene polymer solar cells without post-treatment: employing bare rigid aryl rings as lever arms in new asymmetric benzodithiophene[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(37):18125-18132.
APA Liu, Deyu,Zhang, Kaili,Zhong, Yaqian,Gu, Chunyang,Li, Yonghai,&Yang, Renqiang.(2018).An effective strategy for controlling the morphology of high-performance non-fullerene polymer solar cells without post-treatment: employing bare rigid aryl rings as lever arms in new asymmetric benzodithiophene.JOURNAL OF MATERIALS CHEMISTRY A,6(37),18125-18132.
MLA Liu, Deyu,et al."An effective strategy for controlling the morphology of high-performance non-fullerene polymer solar cells without post-treatment: employing bare rigid aryl rings as lever arms in new asymmetric benzodithiophene".JOURNAL OF MATERIALS CHEMISTRY A 6.37(2018):18125-18132.
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