Construction of ultra‐stable perovskite–polymer fibre membranes by electrospinning technology and its application to light‐emitting diodes. Issue 1 (24th August 2020)

• Record Type: Journal Article
• Authors: Bi, Huan; Liu, Fangyu; Wang, Mian; Mao, Zhu; Zhai, Yuehui; Li, Wei; Wang, Shiwei; Zhang, Mingyao
• Is Part Of: Polymer international. Volume 70:Issue 1(2021)
• Page Start: 90
• Page End: 95
• Publication Date: 2020-08-24
• Subjects: polystyrene -- membranes -- perovskite -- electrospinning; Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.7
• DOI: 10.1002/pi.6094
• Languages: English
• ISSNs: 0959-8103

Abstract

Abstract: Recently, organometallic halide perovskites have shown attractive application prospects in photoelectric devices depending on their excellent electro‐optic properties. However, their poor stability has greatly limited their practical applications. Here, methylammonium lead tribromide (MAPbBr3 ) crystals are protected by polystyrene (PS) fibre membranes using electrospinning technology. The MAPbBr3 @PS composite fibre membranes fabricated in this work not only show strong photoluminescence properties but also excellent stability: 70% of the fluorescence intensity of MAPbBr3 @PS is maintained after soaking in water for 30 days, 85% after leaving at 95 °C for 350 min, and 90% after irradiating under UV light for 100 h. The excellent stability of the MAPbBr3 @PS fibre membranes may be attributed to the hydrogen bonds between the MAPbBr3 crystal and the PS fibre. In addition, a high‐brightness white‐light‐emitting diode based on MAPbBr3 @PS fibre was fabricated, which fully demonstrates its application prospects in the field of colour conversion. © 2020 Society of Industrial Chemistry Abstract : Methylammonium lead tribromide (MAPbBr3 ) crystals were protected by polystyrene (PS) fibre membranes using electrospinning technology. The MAPbBr3 @PS composite fibre membranes fabricated in this work not only show strong photoluminescence properties but also excellent stability. In addition, a high‐brightness white‐light‐emitting diode based on MAPbBr3 @PS fibre was fabricated, which fully demonstrates its application prospects in the field of colour conversion.