文献类型：期刊文献

英文题名：Insight into D-A-π-A Structured Sensitizers: A Promising Route to Highly Efficient and Stable Dye-Sensitized Solar Cells

作者：Wu, Yongzhen[1,2];Zhu, Wei-Hong[1,2];Zakeeruddin, Shaik M.[3];Graetzel, Michael[3]

机构：[1]E China Inst Theoret Phys, Shanghai Key Lab Funct Mat Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Inst Theoret Phys, Inst Fine Chem, Collaborat Innovat Ctr Coal Based Energy i CCE, Shanghai 200237, Peoples R China;[3]Swiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

年份：2015

卷号：7

期号：18

起止页码：9307

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20152000857469);WOS:【SCI-EXPANDED(收录号:WOS:000354906500001)】；

基金：This work was supported by NSFC for Creative Research Groups (21421004) and Distinguished Young Scholars (21325625), NSFC/China, the Oriental Scholarship, and the Fundamental Research Funds for the Central Universities (WJ1416005). M.G. thanks the European Research Council (ERC) for financial support under the advanced research grant (ARG 247404) "Mesolight".

语种：英文

外文关键词：solar cells; organic sensitizers; additional acceptor; photovoltaic performances; stability

摘要：The dye-sensitized solar cell (DSSC) is one of the Most promising photovoltaic technologies with potential of low cost, light weight, and good flexibility. The practical application of DSSCs requires further improvement in power conversion efficiency and long-term stability. Recently, significant progress has been witnessed in DSSC research owing to the hovel concept of the D-A-pi-A motif for the molecular engineering of organic photosensitizers. New organic and porphyrin dyes based on the D-A-pi-A motif can not only enhance photovoltaic performance, but also improve durability in DSSC applications. This Spotlight On Applications highlights recent advances in the D-A-pi-A-based photosensitizes, specifically focusing on the mechanism of efficiency and stability enhancements. Also, we find insight into the additional acceptor as well as the trade-off of long wavelength response. The basic principles are involved in molecular engineering of efficient D-A-pi-A sensitizers, providing a clear road map showing how to modulate the energy bands, rationally extending-the response wavelength, and optimizing photovoltaic efficiency step by step.