太阳能Issue(8)：28-39,12.DOI:10.19911/j.1003-0417.tyn20250225.01
g-C3N4基D-π-A结构纳米片对钙钛矿太阳电池性能影响的研究
RESEARCH ON IMPACT OF g-C3N4-BASED D-π-A STRUCTURAL NANOSHEETS ON PERFORMANCE OF PEROVSKITE SOLAR CELLS
摘要
Abstract
At present,additive engineering is considered a potential method for preparing high-quality polycrystalline films,and graphite phase nitride carbon(g-C3N4)has played a good optimization role in various perovskite devices due to its excellent properties such as low cost and good photothermal stability.Based on this,this paper proposes a method for synthesizing nanosheets with D-π-A structure(BFCN nanosheets)by modifying g-C3N4 with 4-carb oxy-3-fluorophenylboronic acid(BF).Firstly,BFCN nanosheets are introduced into perovskite thin films with triple cations,and their effects on the morphology and crystal structure of perovskite thin films are analyzed.Then,the influence of BFCN on the power generation performance of perovskite solar cells is analyzed from the aspects of short-circuit current density,trap filling limit voltage,defect density of states,filling factor,and photoelectric conversion efficiency.The research results show that:1)The introduction of BFCN nanosheets effectively passivates the uncoordinated cations and anions in perovskite,reduces the density of defect states,not only improves the crystal quality of perovskite thin films,but also suppresses non radiative recombination processes,and enhances various power generation performance parameters of perovskite solar cells.2)By introducing BFCN into perovskite solar cells with a structure of ITO/SnO2/CsFAMA/Spiro-OMeTAD/Ag,the photoelectric conversion efficiency of such solar cells can reach up to 23.98%.关键词
钙钛矿太阳电池/g-C3N4纳米片/D-π-A结构/分子工程/电荷转移Key words
perovskite solar cells/g-C3N4 nanosheets/D-π-A structure/molecular engineering/charge transfer分类
信息技术与安全科学引用本文复制引用
王英杰,李丹..g-C3N4基D-π-A结构纳米片对钙钛矿太阳电池性能影响的研究[J].太阳能,2026,(8):28-39,12.基金项目
2024年吉林建筑科技学院校级科研项目(校科字[2024]010ZQKJ号) （校科字[2024]010ZQKJ号）
2025年吉林建筑科技学院校级教育教学改革研究课题(JY2025Z013) （JY2025Z013）
