Isomeric halide engineering of self-assembled hole-selective layers for efficient indoor perovskite photovoltaics
學年 114
學期 1
出版（發表）日期 2026-01-01
作品名稱 Isomeric halide engineering of self-assembled hole-selective layers for efficient indoor perovskite photovoltaics
作品名稱（其他語言）
著者 Zhong-En Shi; Yi-Ting Hong; Cheng-Chieh Lu; Po-Cheng Shih; Shih-I Lu; Hsiao-Chi Hsieh; Sie-Rong Li; Yu-Che Lin; Zheng-Xuan Cai; Yan-Duo Lin; Chih-Ping Chen
單位
出版者
著錄名稱、卷期、頁數 Chemical Engineering Journal 527, p.171787
摘要 Self-assembled hole-selective layers (HSLs) have emerged as a versatile and effective approach for engineering the interfaces of electronic and optoelectronic devices. To achieve precise control over the molecular organization and functionality of HSLs, we designed and synthesized a series of carbazole-based donor–acceptor (D–A) molecules—L-H, L-Cl, Bsingle bondH, and B-Cl—with and without chlorine incorporation. These molecules were developed for use as HSL in perovskite solar cells (PSCs). These multifunctional HSL feature a donor–acceptor framework that facilitates hole transport, while a benzoic acid anchoring group ensures robust substrate binding and promotes face-on π–π stacking parallel to the transparent conductive oxide surface. Compared with their non-chlorinated analogues (L-H and Bsingle bondH), the chlorinated derivatives (L-Cl and Bsingle bondCl) exhibit stronger dipole moments and enhance the HSL/perovskite interface. The L- and B-series HSLs effectively passivate perovskite defects, optimize interfacial energy alignment, and improve carrier transport dynamics. Notably, the optimized L-Cl-based Cs0.18FA0.82Pb(I0.8Br0.2)3 p–i–n PSC achieves a remarkable power conversion efficiency (PCE) exceeding 41 % under indoor lighting (WLED, 1000 lx). Moreover, L-Cl-based devices demonstrate outstanding environmental stability, retaining nearly unchanged efficiency after 770 h storage under ambient conditions (25 °C, 50 % relative humidity), without encapsulation. These results demonstrate that D–A-type molecular interface engineering effectively enhances defect passivation and interfacial contact, offering a promising route toward high-efficiency, long-term stable PSCs.
關鍵字 Carbazole derivatives; Chlorine-substituted small molecules; Hole-transporting materials; Perovskite solar cells; Indoor photovoltaics
語言 en
ISSN 1385-8947; 1873-3212
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
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