journal article·2024-04-22

2D Perovskite Seeds Enabled High-Quality Perovskite Films with Facet Orientation and Released Stresses on Flexible Substrates

Bin Han, Yaohua Wang, Peng Xu, Yuanyuan Meng, Mengjin Yang, Lisha Xie, Jinhui Li, Xiaoli Zhang, Qingqing Qiu, Chang Liu, Ziyi Ge

ACS Applied Energy Materials· Volume 7· Issue 8
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Abstract

Organic–inorganic halide perovskite,the light absorber of flexible perovskite solar cells (f-PSCs), suffered from poor quality of perovskite films on a flexible substrate, which made the efficiency of f-PSCs lag behind that of rigid perovskite solar cells. Here, an organic cation of 4-pyridinylmethylammonium iodide (4-PyAI) was screened to form two-dimensional (2D) perovskite as “seeds” for gaining three-dimensional (3D) perovskite thin films. Because the introduction of 2D perovskites significantly optimized the process of perovskite film crystallization, superior perovskite film quality was observed along with highly orientated perovskite crystals. As a result, high efficiencies of 21.97% were obtained for the f-PSCs. On the other hand, the f-PSCs showed excellent mechanical performances due to 2D perovskite, remaining 90% of the initial power conversion efficiency (PCE) after 2500 times bending.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Ferroelectric and Piezoelectric Materials

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

Affiliations

Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, PR China

Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, PR China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, PR China

Funding

National Science Fund for Distinguished Young Scholars · National Natural Science Foundation of China · Distinguished Professor Program of Jinggang Scholars in institutions of higher learning

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