Eu2+-doped MAPbBr3 Perovskite Nanocrystal in Silica Composites with Enhanced Stability for White Light Emission and Flexible X-Ray Detectors
abstract：
Perovskite nanocrystals (NCs), such as MAPbX3 (MA+ = methylammonium; X = Cl, Br, or I), have received attention owing to their excellent optoelectronic properties and ease of integrating with flexible substrates. Lanthanide ion doping is widely used as an effective strategy to enhance the optoelectronic performance of perovskite NCs. However, incorporating the lanthanide dopant and ensuring the emission stability of the perovskite NCs in high-performance optoelectronic devices remains a major challenge. Herein, the synthesis of Eu2+-doped MAPbBr3 NCs within the channels of SBA-15 is presented to improve their stability. The doped MAPbBr3 NC@SBA-15 composites exhibit significantly improved stability than that of undoped MAPbBr3 NCs. The doped MAPbBr3 NC@SBA-15 composites exhibit moderate PL quantum yields and excellent stability under ambient conditions and UV irradiation. In addition, the MAEu0.3Pb0.7Br3 NC@SBA-15 composite applied in white-light-emitting diodes (WLEDs) achieves a color rendering index of 73.5. Moreover, MAEu0.3Pb0.7Br3 NC@SBA-15 can be combined with styrene-ethylene-butylene-styrene to fabricate a flexible direct X-ray detector, realizing a high sensitivity of 7592.2 µC Gyair−1 cm−2 and a low detection limit of <77 nGyair s−1; this is an outstanding value for a NC-based flexible direct X-ray detector. This work serves as a guide for the design of perovskite NCs for both WLEDs and flexible X-ray detectors.
Eu2+-doped MAPbBr3 Perovskite Nanocrystal in Silica Composites with Enhanced Stability for White Light Emission and Flexible X-Ray Detectors- Wang - Adv. Opt. Mater. - Wiley Online Library
-
Ru Qin, Yin Wu, Zicheng Ding, Pengcheng Li, Zhihua Zhuang, Ruipeng Li, Wenliang Huang, Zhaomin Gao, Jiayi Hua, Shengzhong Frank Liu, Yanchun Han, Kui Zhao, Polymer, 2024, 127734.
-
Interlayer reinforcement for improved mechanical reliability for wearable perovskite solar cells
Weilun Cai, Pengchen Zou, shigi rong, Hui Wang, Xin Chen, ZhengZhang, yajie wang, Chou Liu, Tinghuan Yang, TiangiNiu, Shengye Jin, Wenming Tian, Jianxi Yao, Shengzhong FrankLiu and Kui zhao, Energy & Environmental Science, 2024, D4EE03503H.
-
Ambient scalable fabrication of high-performance flexible perovskite solar cells
Pengchi Liu, Hui Wang, Tianqi Niu, Lei Yin, Yachao Du, Lei Lang, Zheng Zhang, Yongchao Tu, Xiujie Liu, Xin Chen, shuang Wang, Nan Wu, Ru Qin, Likun Wang, Shaoan Yang, Chunfu Zhang, Xu Pan, Shengzhong Frank Liu, Kui Zhao, Energy & Environmental Science, 2024, D4EE02925A.
-
Xin Chen, Weilun Cai, Tianqi Niu, Hui Wang, Chou Liu, Zheng Zhang, Yachao Du, Shuang Wang, Yang Cao, Pengchi Liu, Wenliang Huang, Chuang Ma, Ben Yang, Shengzhong (Frank) Liu, Kui Zhao, Energy & Environmental Science, 2024, d4ee02279c.
-
Wearable Photoferroelectric Perovskite X-Ray Detectors
Haojin Li, Chang-feng Wang, Qing-feng Luo, Chuang Ma, Jing Zhang, Ri Zhao, Tinghuan Yang, Yachao Du, Xin Chen, Telun Li, Xinmei Liu, Xin Song, Ye Yang, Zhou Yang, Shengzhong (Frank) Liu, Yi Zhang, Kui Zhao, Adavanced Materials, 2024, adma.202407693.
-
Yajie Wang, Tinghuan Yang, Weilun Cai, Peng Mao, Yang Yang, Nan Wu, Chou Liu, Shiqiang Wang, Yachao Du, Wenliang Huang, Guangtao Zhao, Zicheng Ding, Ningyi Yuan, Jianning Ding, Yufei Zhong, Shengzhong (Frank) Liu, Kui Zhao, Adavanced Materials, 2024, adma.202312014.
-
Chou Liu,Tinghuan Yang,Weilun Cai, Yajie Wang, Xin Chen, Shumei Wang, Wenliang Huang, Yachao Du, Nan Wu, Zhichao Wang, YangYang, Jiangshan Feng, Tianqi Niu, Zicheng Ding, Kui Zhao, Adavanced Materials, 2024, adma.202311562.
-
Biocompatible Metal-Free Perovskite Membranes for Wearable X-ray Detectors
Xinmei Liu, Qingyue Cui, Haojin Li, Shumei Wang, Qi Zhang, Wenliang Huang, Chou Liu, Weilun Cai, Telun Li, Zhou Yang, Chuang Ma, Lixia Ren, Shengzhong Frank Liu, Kui Zhao, ACS Appl. Mater. Interfaces. 2024, acsami.4c01069.
-
“One‐Click Restart” Recycling of Metal‐Free Perovskite X‐ray Detectors
Haojin Li, Telun Li, Chuang Ma, Xinmei Liu, Lei Lang, Tinghuan Yang, Xin Song, Qingyue Cui, Zhou Yang, Shengzhong (Frank) Liu, Kui Zhao, Adavanced Materials, 2024, adma.202400783.
-
High hardness metal-free perovskite based on hexamethylenetetramine for efficient X-ray detection
Xin Song, Telun Li, Haojin Li, Shuyi Lin, Jun Yin, Kui Zhao, Sci. China Mater. 2024.