Mesoscale Ordering 3D Mosaic Self-Assembly of Dopant-Free Hole Transport Material for Perovskite Solar Cells

Xiaoyuan Liu; Keli Wang; Yuheng Li; Shuai You; Tuo Liu; Yifan Lv; Yuan Li; Yu Wang; Haoxiang He; Yinxin Li; Qian Chen; Pengfei Xie; Yonghua Chen; Xiong Li; Zong-Xiang Xu

2024-04-30

10.1021/acsenergylett.4c00585

ACS Energy Letters   影响因子和分区

2380-8195

To enhance n-i-p perovskite solar cell (PSC) performance, we optimized the hole transport material (HTM) by using a cost-effective N,N′-bicarbazole-based molecule, BCzSPA, with a 3D conjugated extended “L”-type configuration, to fix the molecular packing model and charge hopping channel. By implementing mesoscale molecular tailoring strategies to order the molecular stacking of BCzSPA, we have significantly realized a dense 3D mosaic self-assembly with intermolecular coupling and multichannel charge hopping properties. The proper incorporation of heteroatom-promoted multidirectional molecular interactions and enhanced morphological stability has simultaneously optimized the perovskite/HTM interfacial contact, inhibited defect formation, and further suppressed charge recombination loss. As a result, the resulting PSCs have achieved a promising efficiency of 25.42% (certified PCE, 24.53%) for a small-area (0.1 cm) device as well as 24.01% for a large-area (1 cm) device, while demonstrating remarkable stabilities, with T lifetimes exceeding 2400 h under operation or thermal aging at 85 °C.

SCI ; EI

英语

第一 ; 共同第一 ; 通讯

2-s2.0-85192169280

人工提交

正式出版

南方科技大学

Xiaoyuan Liu,Keli Wang,Yuheng Li,et al. Mesoscale Ordering 3D Mosaic Self-Assembly of Dopant-Free Hole Transport Material for Perovskite Solar Cells[J]. ACS Energy Letters,2024,9(5):2446-2455.

Xiaoyuan Liu.,Keli Wang.,Yuheng Li.,Shuai You.,Tuo Liu.,...&Zong-Xiang Xu.(2024).Mesoscale Ordering 3D Mosaic Self-Assembly of Dopant-Free Hole Transport Material for Perovskite Solar Cells.ACS Energy Letters,9(5),2446-2455.

Xiaoyuan Liu,et al."Mesoscale Ordering 3D Mosaic Self-Assembly of Dopant-Free Hole Transport Material for Perovskite Solar Cells".ACS Energy Letters 9.5(2024):2446-2455.