Engineering ZnO photoanodes for enhanced DSSC performance via Bi-functionalization

IF 3.4 4区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of the Indian Chemical Society Pub Date : 2025-09-06 DOI:10.1016/j.jics.2025.102092

B.B. Mahapatra , M.K. Ghosh , B.B. Panda , N. Maity

{"title":"Engineering ZnO photoanodes for enhanced DSSC performance via Bi-functionalization","authors":"B.B. Mahapatra , M.K. Ghosh , B.B. Panda , N. Maity","doi":"10.1016/j.jics.2025.102092","DOIUrl":null,"url":null,"abstract":"<div><div>Co-sensitization of photoanodes represents a cutting-edge strategy for enhancing the efficiency of photovoltaic cells. This study explores the potential of ZnO thin films and investigates natural dyes extracted from Clitoria Ternatea leaves (D1) and flowers (D2) as individual and combined sensitizers for Natural dye-sensitized solar cells (NDSSCs). UV-VIS and FTIR spectroscopies confirm the presence of Chlorophyll-a in D1 and Anthocyanin in D2. Photoelectrochemical analysis reveal that, ZnO co-sensitized NDSSCs achieve superior performance, with a V<sub>OC</sub> of 209 mV, I<sub>SC</sub> of 2.3 mA, energy conversion efficiency (η) of 3.4 %, and a fill factor of 35.4 % which surpass those obtained from NDSSCs using single-dye sensitizers. ZnO thin films were further analyzed using UV-VIS spectroscopy, PXRD, FESEM, and EDAX. The absorption spectrum indicates a band gap (E<sub>g</sub>) of 3.1 eV. PXRD data confirm hexagonal wurtzite phase (space group P63mc), FESEM reveals a distinctive flower-like morphology and EDAX analysis confirms a Zn-to-O ratio of 1:1.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102092"},"PeriodicalIF":3.4000,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Indian Chemical Society","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0019452225005278","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Co-sensitization of photoanodes represents a cutting-edge strategy for enhancing the efficiency of photovoltaic cells. This study explores the potential of ZnO thin films and investigates natural dyes extracted from Clitoria Ternatea leaves (D1) and flowers (D2) as individual and combined sensitizers for Natural dye-sensitized solar cells (NDSSCs). UV-VIS and FTIR spectroscopies confirm the presence of Chlorophyll-a in D1 and Anthocyanin in D2. Photoelectrochemical analysis reveal that, ZnO co-sensitized NDSSCs achieve superior performance, with a V_OC of 209 mV, I_SC of 2.3 mA, energy conversion efficiency (η) of 3.4 %, and a fill factor of 35.4 % which surpass those obtained from NDSSCs using single-dye sensitizers. ZnO thin films were further analyzed using UV-VIS spectroscopy, PXRD, FESEM, and EDAX. The absorption spectrum indicates a band gap (E_g) of 3.1 eV. PXRD data confirm hexagonal wurtzite phase (space group P63mc), FESEM reveals a distinctive flower-like morphology and EDAX analysis confirms a Zn-to-O ratio of 1:1.

Abstract Image

查看原文本刊更多论文

工程ZnO光阳极通过双功能化增强DSSC性能

光阳极的共敏化是提高光伏电池效率的一种前沿策略。本研究探索了氧化锌薄膜的潜力，并研究了从阴蒂叶（D1）和花（D2）中提取的天然染料作为天然染料敏化太阳能电池（NDSSCs）的单独和联合敏化剂。UV-VIS和FTIR光谱证实D1中存在叶绿素-a， D2中存在花青素。光电化学分析表明，ZnO共敏的NDSSCs具有优异的性能，VOC为209 mV， ISC为2.3 mA，能量转换效率（η）为3.4%，填充系数为35.4%，均优于单染料敏化的NDSSCs。采用紫外-可见光谱、PXRD、FESEM和EDAX对ZnO薄膜进行了进一步的分析。吸收光谱显示带隙（Eg）为3.1 eV。PXRD数据证实了六方纤锌矿相（空间群P63mc）， FESEM显示了独特的花状形态，EDAX分析证实了锌氧比为1:1。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of the Indian Chemical Society 化学-化学综合

CiteScore

3.50

自引率

7.70%

发文量

492

审稿时长

3-8 weeks

期刊介绍： The Journal of the Indian Chemical Society publishes original, fundamental, theorical, experimental research work of highest quality in all areas of chemistry, biochemistry, medicinal chemistry, electrochemistry, agrochemistry, chemical engineering and technology, food chemistry, environmental chemistry, etc.