DataVXAdvanced MaterialsPaper
journal article·2024-08Open access

Controlled Nucleation and Oriented Crystallization of Methylammonium‐Free Perovskites via In Situ Generated 2D Perovskite Phases

Yuping Gao, Zonglong Song, Qiang Fu, Yu Chen, Liu Yang, Ziyang Hu, Yongsheng Chen, Yongsheng Liu

Advanced Materials· Volume 36· Issue 33
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Source abstract

Abstract

Abstract Enhancing stability while maintaining high efficiency is among the primary challenges in the commercialization of perovskite solar cells (PSCs). Here, a crystal growth technique assisted by in situ generated 2D perovskite phases has been developed to construct high‐quality 2D/3D perovskite films. The in situ generated 2D perovskite serve as templates for regulating the nucleation and oriented crystal growth in the α‐FAPbI3‐rich film. This led to a high film quality with much reduced trap density and an ultralong carrier lifetime. The obtained perovskite film shows excellent stability under extreme environment conditions (T = 200 °C, RH = 75 ± 5%). The corresponding PSC achieved an efficiency of 26.16% (certified 25.84%), along with excellent operational stability (T93 > 1300 h, T ≅ 50 °C) as well as outstanding high and low temperature cycle stability.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials Institute of Polymer Chemistry College of Chemistry Nankai University Tianjin 300071 China

Department of Materials Science and Engineering City University of Hong Kong Kowloon 999077 Hong Kong

Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China

Department of Microelectronic Science and Engineering Ningbo University Ningbo 315211 China

Renewable Energy Conversion and Storage Center (RECAST) Nankai University Tianjin 300071 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Hebei Province · Ministry of Science and Technology of the People's Republic of China

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