偶氮苯
光致变色
色素敏化染料
光化学
氧化还原
化学
二苯胺
钴
光稳态
电化学
接受者
异构化
材料科学
电解质
无机化学
光异构化
有机化学
催化作用
电极
分子
物理
物理化学
凝聚态物理
作者
Anggia Ismi Simpang,Alvien Ghifari,Han Soo-Young,Dini Hayati,Dang Xuan Long,Yoon Hee Jang,Jongin Hong
标识
DOI:10.1002/slct.202204571
摘要
Abstract We report the facile synthesis of photochromic donor‐π‐acceptor (D‐π‐A) dyes featuring an azobenzene spacer with diphenylamine and dimethylamine as donor residues (DPAC and DMAC). We also investigate the spectroscopic and electrochemical properties of these dyes and their application to dye‐sensitized solar cells (DSSCs). The trans ‐ cis isomerization of the azobenzene bridge permits regulation of the photovoltaic behaviour in the DSSCs containing iodine‐ and cobalt‐based redox electrolytes. The iodidie/triiodidie redox shuttle is suitable for DMAC‐DSSCs, whereas the cobalt redox mediator is optimal for DPAC‐DSSCs. DMAC‐ and DPAC‐DSSCs yield power conversion efficiencies (PCEs) up to 1.99 % and 1.08 % under one sun illumination, when the solar cells are at the photostationary (PS) state.
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