Asymmetric Fluorinated Cyclopenta [2, 1‐b: 3, 4‐b'] Dithiophene‐Based Hole‐Transporting Materials for Perovskite Solar Cell

doi:10.1002/asia.202500719

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/128507

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/128507

Title:	Asymmetric Fluorinated Cyclopenta [2, 1‐b: 3, 4‐b'] Dithiophene‐Based Hole‐Transporting Materials for Perovskite Solar Cell
Authors:	Lee, Kun‐Mu;Pan, Jui‐Ting;Chen, Wen‐Tzu;Lin, Chia‐Hui;Wang, Zhe‐Wei;Chiu, Wei‐Hao;Chu, Wei‐Chen;Chang, Ya‐Ho;Hsu, Jen‐Fu;Li, Sie‐Rong;Lu, Shih‐I;Hsieh, Hsiao‐Chi;Hu, Chih‐Wei;Chen, Chih‐Hung;Chiu, Jian‐Ming;Liau, Kang‐Ling;Chen, Gao;Liu, Yun‐Shuo;Sun, Shih‐Sheng;Lin, Yan‐Duo
Date:	2025-06-17
Issue Date:	2026-03-03 12:06:50 (UTC+8)
Publisher:	Wiley
Abstract:	A series of asymmetric hole-transporting materials (HTMs) based on cyclopenta[2,1-b;3,4-b’]dithiophene cores tethered with p-methoxytriphenylamines donor units with or without incorporated fluorine atoms were rationally designed, synthesized, and employed in perovskite solar cells (PSCs). A comprehensive comparison is conducted encompassing the absorption spectra, electrochemical characteristics, thermal stability, density functional theory (DFT) calculations, hole mobility, and surface morphology, as revealed by scanning electron microscopy (SEM) and atomic force microscopy (AFM), steady-state and time-resolved photoluminescence measurements, water contact angle analyzes, and photovoltaic parameters of the PSCs. The fluorinated HTMs, P-oF and P-mF, demonstrated enhanced hole mobility and more efficient charge extraction at the perovskite/HTM interface compared to their non-fluorinated counterpart. Consequently, PSCs employing P-oF and P-mF achieved power conversion efficiencies (PCEs) of 21.52% and 19.78%, respectively, with negligible hysteresis, outperforming devices based on P-H, which exhibited a PCE of 17.05%. Moreover, the operational stability of the device incorporating P-series as the HTM exceeded that of the PSCs employing the benchmark material of spiro-OMeTAD. The findings presented herein underscore the facile accessibility and potential of asymmetric compounds as alternative HTMs for PSCs. The results provide valuable insights and serve as a reference for the development of optimal HTMs for PSCs.
Relation:	Chemistry–An Asian Journal, 20(17)
DOI:	10.1002/asia.202500719
Appears in Collections:	[化學工程與材料工程學系暨研究所] 期刊論文

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	70	View/Open

資料載入中.....