journal article·2024-05

In Situ Synthesized Low‐Dimensional Perovskite for >25% Efficiency Stable MA‐Free Perovskite Solar Cells

Yong Li, Yuwei Duan, Zhike Liu, Lu Yang, Hongxiang Li, Qunping Fan, Hui Zhou, Yiqiao Sun, Meizi Wu, Xiaodong Ren, Ningyi Yuan, Jianning Ding, Shaoming Yang, Shengzhong Liu

Advanced Materials· Volume 36· Issue 21
Publisher page

Abstract

Abstract Developing an additive to effectively regulate the perovskite crystallization kinetics for the optimized optoelectronic properties of perovskite film plays a vital role in obtaining high efficiency and stable perovskite solar cells (PSCs). Herein, a new additive is designed and directly synthesized in perovskite precursor solution by utilizing an addition reaction between but‐3‐yn‐1‐amine hydrochloride (BAH) and formamidinium iodide. It is found that its product may control the intermediate precursor phase for regulating perovskite nucleation, leading to advantageous 2D perovskite to induce growth of perovskite along the preferred [001] orientation with not only released lattice strain but also strong interaction with perovskite to passivate its surface defects. By taking advantage of the above synergistic effects, the optimized PSC delivers an efficiency of 25.19% and a high open‐circuit voltage (VOC) of 1.22 V. Additionally, the devices demonstrate good stability, remaining over 90% of their initial efficiencies under ambient atmosphere conditions for 60 days, high temperature of 85 °C for 200 h, or maximum power point tracking for 500 h.
Source: crossref · Quality: baseline

Research context

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

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

Affiliations

Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 China

College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China

College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China

State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 China

Yunnan Key Laboratory for Micro/Nano Materials & Technology International Joint Research Center for Optoelectronic and Energy Materials School of Materials and Energy Yunnan University Kunming Yunnan 650091 China

School of Materials Science and Engineering Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology Changzhou University Changzhou 213164 China

Funding

National Natural Science Foundation of China · China Postdoctoral Science Foundation · National Key Research and Development Program of China · Sichuan Province Science and Technology Support Program · National University Research Fund of China · Higher Education Discipline Innovation Project

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