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深圳先进院王在伟团队 | 应变调控实现相纯稳定的宽带隙 FAPbBr₃ 钙钛矿太阳能电池

  • 2026-06-01 01:10:26
深圳先进院王在伟团队 | 应变调控实现相纯稳定的宽带隙 FAPbBr₃ 钙钛矿太阳能电池

01

研究背景

宽带隙溴化铅钙钛矿因具有较高开路电压 (VOC) 和良好的环境稳定性,被视为叠层太阳能电池前电池的理想吸收层。然而,FAPbBr₃ 薄膜在结晶过程中容易积累残余拉伸应变,诱导光学惰性的 δ 相生成,严重制约器件性能与长期稳定性。

近日,中国科学院深圳先进技术研究院王在伟团队通过在前驱体溶液中引入 Sodium 4‑chlorobenzenesulfonate (4Cl‑BZS) 添加剂,对薄膜结晶过程中的应变状态进行调控,实现了相纯 FAPbBr₃ 薄膜的可控制备,并系统研究了应变释放与相稳定性之间的关系。

02

研究亮点

  • 分子尺寸匹配有效释放薄膜残余拉伸应变。

  • 显著抑制光学惰性 δ‑FAPbBr₃ 相生成。

  • 器件实现 1.63 V 的高开路电压。

  • 未封装器件在 50% RH 下稳定运行超过 1400 h。

03

前景展望

该研究从应变工程角度揭示了 FAPbBr₃ 相不稳定性的内在来源,证明通过添加剂调控结晶动力学与应变分布,可同时提升宽带隙钙钛矿太阳能电池的性能与稳定性,为后续宽带隙及叠层钙钛矿器件的材料设计提供了清晰的实验依据。

04

研究图解

图1 4Cl‑BZS 调控 FAPbBr₃ 薄膜相结构与应变状态的 XRD、GIXRD 及深度分布结果,直观展示 δ 相抑制与应变释放效果。

图2 光致发光、载流子寿命及缺陷态密度表征,表明 4Cl‑BZS 处理有效降低非辐射复合。

图3 器件结构与光伏性能统计,展示修饰后器件在 VOC、PCE 及迟滞效应方面的整体提升。

05

论文信息

Strain regulation for phase-pure and stable wide-bandgap FAPbBr₃ perovskite solar cells

Hasnain Raza, Zijin Qiao, Huanyi Zhou, Jiayu Zheng, Hui-Ming Cheng and Zaiwei Wang

Mater. Chem. Front., 2026, Advance Article

https://doi.org/10.1039/D6QM00236F

*本文部分内容由AI工具辅助生成,已由作者审核确认。

点击“阅读原文”直达上述文章

06

通讯作者简介

王在伟

中科院深圳先进技术研究院

中科院深圳先进技术研究院研究员,博导。2021-2024 年在多伦多大学做博士后研究,合作导师 Edward Sargent 院士;2017-2020 年于洛桑联邦理工大学 Anders Hagfeldt 院士和 Micheal Graetzel 院士课题组攻读博士学位;2013-2016 年在中科院青岛能源所逄淑平研究员和崔光磊研究员课题组攻读硕士学位。目前与国内、国外钙钛矿领域诸多知名课题组具有紧密的合作和交流,团队主要从事新型半导体光电材料的设计与制备,及其在单结及多结光伏等方面的应用研究。曾突破钙钛矿三结光伏的世界记录和实现稳定性的长足进步 (Nature, 2023, 618, 74-79),迄今已发表论文 40 余篇,其中以第一/通讯作者身份在 NatureNat. EnergyJouleNat. Commun.Adv. Mater. 等期刊发表文章 16 篇。论文被引用 4400 余次,H 因子为 31。

多结光伏团队 (GMPV):钙钛矿基多结光伏 (含全钙钛矿多结,钙钛矿/Si 多结,钙钛矿/CIGS 多结,钙钛矿/有机多结等)。

  • 全钙钛矿,钙钛矿/低带隙半导体 (如 Si,CIGS,有机等) 多结光伏 (两结、三结及以上) 的结构设计,器件构筑和长期稳定性研究。

  • 钙钛矿基单结及多结的模组化制备。

  • 基于多结光伏,进行钙钛矿材料体系的优化,钙钛矿成膜工艺的开发,表界面的调控。

  • 对钙钛矿物理及化学机制的理论分析 (含 DFT 计算,机器学习、器件模拟等)。

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  1. CONNECT:[ UseTime:0.000372s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000574s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000297s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000287s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000480s ]
  6. SELECT * FROM `set` [ RunTime:0.000193s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000585s ]
  8. SELECT * FROM `article` WHERE `id` = 598696 LIMIT 1 [ RunTime:0.000398s ]
  9. UPDATE `article` SET `lasttime` = 1780426412 WHERE `id` = 598696 [ RunTime:0.020109s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000347s ]
  11. SELECT * FROM `article` WHERE `id` < 598696 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.004991s ]
  12. SELECT * FROM `article` WHERE `id` > 598696 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000474s ]
  13. SELECT * FROM `article` WHERE `id` < 598696 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.046791s ]
  14. SELECT * FROM `article` WHERE `id` < 598696 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.026378s ]
  15. SELECT * FROM `article` WHERE `id` < 598696 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.047260s ]
0.218933s