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Duan X, Li X, Tan L, Huang Z, Yang J, Liu G, Lin Z, Chen Y. Controlling Crystal Growth via an Autonomously Longitudinal Scaffold for Planar Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2000617. [PMID: 32449256 DOI: 10.1002/adma.202000617] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/17/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Sequential deposition is certified as an effective technology to obtain high-performance perovskite solar cells (PVSCs), which can be derivatized into large-scale industrial production. However, dense lead iodide (PbI2 ) causes incomplete reaction and unsatisfactory solution utilization of perovskite in planar PVSCs without mesoporous titanium dioxide as a support. Here, a novel autonomously longitudinal scaffold constructed by the interspersion of in situ self-polymerized methyl methacrylate (sMMA) in PbI2 is introduced to fabricate efficient PVSCs with excellent flexural endurance and environmental adaptability. By this strategy perovskite solution can be confined within an organic scaffold with vertical crystal growth promoted, effectively inhibiting exciton accumulation and recombination at grain boundaries. Additionally, sMMA cross-linked perovskite network can release mechanical stress and occupy the main channels for ion migration and water/oxygen permeation to significantly improve operational stability, which opens up a new strategy for the commercial development of large-area PVSCs in flexible electronics.
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Affiliation(s)
- Xiaopeng Duan
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Xiang Li
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Licheng Tan
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Zengqi Huang
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Jia Yang
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Gengling Liu
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Zhuojia Lin
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Yiwang Chen
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Institute of Advanced Scientific Research (iASR), Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, China
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