出版日期：2026-01-01 00:00:00

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

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

審稿制度：否

國別：NLD

出版型式：電子版,紙本