Stretchable and self-healable organometal halide perovskite nanocrystal-embedded polymer gels with enhanced luminescence stability
Fang Minjie,
Huang Sihui,
Li Dong,
Jiang Chunli,
Tian Pei,
Lin Hechun,
Luo Chunhua,
Yu Wenlei,
Peng Hui
Affiliations
Fang Minjie
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Huang Sihui
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Li Dong
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Jiang Chunli
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Tian Pei
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Lin Hechun
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Luo Chunhua
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Yu Wenlei
Department of Biomedical Engineering, Wenzhou Medical University, Zhejiang 325035, China
Peng Hui
Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Optoelectronic Science and Engineering, East China Normal University, Shanghai 200241, China
Stretchable and self-healing polymer gels with luminescent property are very promising materials for next generation soft optical devices. This work presents the preparation of self-healing and luminescent polymer gels by simply blending organometal halide perovskite nanocrystals (OHP NCs) with poly(dimethylsiloxane)-urea copolymer (PDMS-urea). On the one hand, the obtained luminescent gels are not only flexible, stretchable and relatively transparent, they also exhibit excellent self-healing capability due to the reversible hydrogen bonding network in the PDMS-urea copolymer. On the other hand, the embedding of OHP NCs (MAPbBr3 and MAPbI3 NCs) inside the hydrophobic PDMS-urea gel greatly improved the photoluminescence stability of OHP NCs against water. Their applications as phosphors for LEDs have been demonstrated. Both the MAPbBr3/PDMS-urea gel and MAPbI3/PDMS-urea gel can fully convert the blue emission of GaN chip to green and red emissions, respectively. These gels can be used as photoluminescent materials in flexible optical devices with good self-healing capability.
