王照奎教授及其合作者在angew. chem. int. ed.上发表论文-尊龙凯时

作者：

yu-tong yang^1#, chun-hui su^1#, kai jin^1#, yan-hui lou²*, xiao-yu rong¹, chun-hao chen¹, jing chen¹, xin chen¹, kai-li wang¹, yu xia¹, lei huang¹, jian fan¹, zhao-kui wang¹*

单位：

¹state key laboratory of bioinspired interfacial materials science,institute of functional nano & soft materials (funsom), soochow university, suzhou 215123, china

²college of energy, soochow institute for energy and materials innovations, soochow university, suzhou 215123, china

摘要：

tin-based perovskite solar cells (tpscs) have attracted attention for their environmentally friendly and high theoretical efficiency. however, their current efficiency remains substantially lower than that of lead-based devices, which due to nonideal film quality and interfacial energy level mismatch. in the inverted structure, conventional hole transport materials, pedot: pss, exhibits nonideal energy level alignment with perovskite, leading to carrier accumulation and recombination. here, we designed and synthesized a carbazole-based phosphonic acid self-assembled monolayer with terminal methylthio groups, which was introduced beneath pedot: pss to construct a composite hole transport layer structure. this architecture, enabled by methylthio groups linkages that ensured intimate interfacial contact and improved energy-level alignment, effectively suppressed recombination losses and facilitated more efficient hole extraction. consequently, the optimized device achieved an impressive power conversion efficiency of 15.11% along with excellent operational stability under various conditions. this work provides new insights into interfacial fermi-level tailoring, paving the way for high-performance tpscs.

影响因子：

16.1

分区情况：

一区

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