Modulation of Acceptor Position in Organic Sensitizers: The Optimization of Intramolecular and Interfacial Charge Transfer Processes

doi:10.1021/acsami.9b03428

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	Modulation of Acceptor Position in Organic Sensitizers: The Optimization of Intramolecular and Interfacial Charge Transfer Processes
	Chai, Zhaofei; Wang, Jinfeng; Xie, Yujun; Lin, Peixuan; Li, Hao; Chang, Kai; Xu, Ting; Mei, Anyi; Peng, Qian; Wang, Mingkui
刊名	ACS APPLIED MATERIALS & INTERFACES
	2019-08-07
卷号	11 期号:31 页码:27648-27657
ISSN号	1944-8244
DOI	10.1021/acsami.9b03428
英文摘要	With respect to cyanoacryclic acid as the traditional acceptor and anchoring group in dye-sensitized solar cells, the introduction of stronger electron-deficient groups has greatly expanded the scope of molecular design and increased their efficiencies for organic dyes. In this contribution, benzothiadiazole (BTD) was selected as a representative acceptor to illustrate the influence of its position on the photophysical properties and corresponding photovoltaic performances. Through the insertion of BTD in different positions of the framework with the same composition units and orders, four sensitizers were designed and synthesized. The structure-property relationship demonstrated the preference of the suitable position of an electron acceptor for optimization of the spectra response and interfacial charge transfer. In our system, dye LI-96 with BTD in the middle of the conjugated bridge showed the broadest spectrum and achieved the best photovoltaic performance (8.25%), which may pave a new way to design or optimize the efficient sensitizers by rational design of the acceptor position.
语种	英语
WOS记录号	WOS:000480498600017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/82674]
专题	中国科学院化学研究所
作者单位	Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Chai, Zhaofei,Wang, Jinfeng,Xie, Yujun,et al. Modulation of Acceptor Position in Organic Sensitizers: The Optimization of Intramolecular and Interfacial Charge Transfer Processes[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(31):27648-27657.
APA	Chai, Zhaofei.,Wang, Jinfeng.,Xie, Yujun.,Lin, Peixuan.,Li, Hao.,...&Li, Zhen.(2019).Modulation of Acceptor Position in Organic Sensitizers: The Optimization of Intramolecular and Interfacial Charge Transfer Processes.ACS APPLIED MATERIALS & INTERFACES,11(31),27648-27657.
MLA	Chai, Zhaofei,et al."Modulation of Acceptor Position in Organic Sensitizers: The Optimization of Intramolecular and Interfacial Charge Transfer Processes".ACS APPLIED MATERIALS & INTERFACES 11.31(2019):27648-27657.