Thermal Shock Fabrication of Ion-Stabilized Perovskite and Solar Cells

Yifei Kang; Anran Wang; Rong Li; Yilong Song; Xinjiang Wang; Hanming Li; Weiqing Xu; Lijun Zhang; Qingfeng Dong

doi:10.1002/adma.202203166

Thermal Shock Fabrication of Ion-Stabilized Perovskite and Solar Cells

Adv Mater. 2022 Aug;34(32):e2203166. doi: 10.1002/adma.202203166. Epub 2022 Jul 10.

Authors

Yifei Kang¹, Anran Wang¹, Rong Li¹, Yilong Song¹, Xinjiang Wang², Hanming Li¹, Weiqing Xu¹, Lijun Zhang², Qingfeng Dong¹

Affiliations

¹ State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China.
² Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun, 130012, China.

PMID: 35724329
DOI: 10.1002/adma.202203166

Abstract

A highly crystalline tempered-glass-like perovskite grain structure with compressed surface lattice realized by a thermal-shocking fabrication is shown. The strained perovskite grain structure is stabilized by Cl^- -reinforcing surface lattice and shows enhanced bonding energy and ionic activation temperature, which contributes to hysteresis-free operation of perovskite solar cells (PSCs) at much higher temperature up to 363 K in thermal-shocking-processed MAPbCl_x I_3- _x (T-MPI). The PSCs can be fabricated by a high-speed fully air process without post-annealing based on the scalable bar-coating technique. Both high efficiency and stability are achieved in T-MPI PSC with a power conversion efficiency (PCE) up to 22.99% and long-term operational stability with T₈₀ lifetime exceeding 4000 h.

Keywords: ion migration; perovskite solar cells; thermal-shocking.

Abstract

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