Faraghally A. Faraghally, Ahmed Fouad Musa, Ching-Chin Chen, Yu-Hsuan Chen, Yan-Da Chen, Chen-Yu Yeh, Tzu-Chien Wei
{"title":"Double Anthracene-Based Sensitizers for High-Efficiency Dye-Sensitized Solar Cells under Both Sunlight and Indoor Light","authors":"Faraghally A. Faraghally, Ahmed Fouad Musa, Ching-Chin Chen, Yu-Hsuan Chen, Yan-Da Chen, Chen-Yu Yeh, Tzu-Chien Wei","doi":"10.1002/sstr.202400236","DOIUrl":null,"url":null,"abstract":"The development of photosensitizers with extended <i>π</i>-conjugation and spectral matching to sunlight and fluorescent light is crucial for achieving high power conversion efficiency (PCE) in dye-sensitized solar cells (DSSCs). This study presents a series of novel anthracene-based photosensitizers, <b>AMO1–AMO4</b>. This series has been designed with bulky modified Hagfeldt donors to suppress undesired molecular aggregation, double anthracene groups for enhanced π-conjugation, acetylene groups for improved molecular planarity, and four distinct acceptors to fine-tune their photophysical and electrochemical properties. The performance of the novel dyes in DSSCs is investigated using two copper redox shuttles, Cu<sup>I/II</sup>(dmp)<sub>2</sub> and Cu<sup>I/II</sup>(dmodmbp)<sub>2</sub>. Among the investigated dyes, <b>AMO2</b> mediated with Cu<sup>I/II</sup>(dmodmbp)<sub>2</sub> exhibits the highest power conversion efficiency (PCE) of 10.05% (<i>J</i><sub>SC</sub> = 13.72 mA cm <sup>2</sup>, <i>V</i><sub>OC</sub> = 1.035 V, and FF = 0.71) under sunlight illumination and an outstanding PCE of 34.64% under T5 illumination (6000 lux). These achievements underscore the remarkable potential of anthracene-bridged sensitized DSSCs in indoor and outdoor applications.","PeriodicalId":21841,"journal":{"name":"Small Structures","volume":"39 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Small Structures","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/sstr.202400236","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The development of photosensitizers with extended π-conjugation and spectral matching to sunlight and fluorescent light is crucial for achieving high power conversion efficiency (PCE) in dye-sensitized solar cells (DSSCs). This study presents a series of novel anthracene-based photosensitizers, AMO1–AMO4. This series has been designed with bulky modified Hagfeldt donors to suppress undesired molecular aggregation, double anthracene groups for enhanced π-conjugation, acetylene groups for improved molecular planarity, and four distinct acceptors to fine-tune their photophysical and electrochemical properties. The performance of the novel dyes in DSSCs is investigated using two copper redox shuttles, CuI/II(dmp)2 and CuI/II(dmodmbp)2. Among the investigated dyes, AMO2 mediated with CuI/II(dmodmbp)2 exhibits the highest power conversion efficiency (PCE) of 10.05% (JSC = 13.72 mA cm 2, VOC = 1.035 V, and FF = 0.71) under sunlight illumination and an outstanding PCE of 34.64% under T5 illumination (6000 lux). These achievements underscore the remarkable potential of anthracene-bridged sensitized DSSCs in indoor and outdoor applications.