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Construction of ultra‐stable perovskite–polymer fibre membranes by electrospinning technology and its application to light‐emitting diodes
Polymer International ( IF 2.9 ) Pub Date : 2020-08-01 , DOI: 10.1002/pi.6094 Huan Bi 1, 2 , Fangyu Liu 1, 2 , Mian Wang 1, 2 , Zhu Mao 1 , Yuehui Zhai 1, 2 , Wei Li 2 , Shiwei Wang 1, 2 , Mingyao Zhang 2
Polymer International ( IF 2.9 ) Pub Date : 2020-08-01 , DOI: 10.1002/pi.6094 Huan Bi 1, 2 , Fangyu Liu 1, 2 , Mian Wang 1, 2 , Zhu Mao 1 , Yuehui Zhai 1, 2 , Wei Li 2 , Shiwei Wang 1, 2 , Mingyao Zhang 2
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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
中文翻译：
静电纺丝技术制备钙钛矿聚合物超稳定纤维膜及其在发光二极管中的应用
近年来，有机金属卤化物钙钛矿凭借其优异的电光性能在光电器件中显示出诱人的应用前景。但是，它们的稳定性差大大限制了它们的实际应用。在此，使用静电纺丝技术通过聚苯乙烯（PS）纤维膜保护三溴化甲基铵铅（MAPbBr 3）晶体。这项工作中制备的MAPbBr 3 @PS复合纤维膜不仅显示出强的光致发光性能，而且还具有出色的稳定性：在水中浸泡30天后，MAPbBr 3 @PS的荧光强度保持70％，在95％的温度下浸泡后保持85％。 °C持续350分钟，在UV灯下照射100 h后达到90％。MAPbBr的出色稳定性3 PS纤维膜可归因于MAPbBr 3晶体和PS纤维之间的氢键。此外，还制作了基于MAPbBr 3 @PS光纤的高亮度白光发光二极管，充分展示了其在色彩转换领域的应用前景。©2020工业化学学会
更新日期：2020-08-01
中文翻译：
静电纺丝技术制备钙钛矿聚合物超稳定纤维膜及其在发光二极管中的应用
近年来，有机金属卤化物钙钛矿凭借其优异的电光性能在光电器件中显示出诱人的应用前景。但是，它们的稳定性差大大限制了它们的实际应用。在此，使用静电纺丝技术通过聚苯乙烯（PS）纤维膜保护三溴化甲基铵铅（MAPbBr 3）晶体。这项工作中制备的MAPbBr 3 @PS复合纤维膜不仅显示出强的光致发光性能，而且还具有出色的稳定性：在水中浸泡30天后，MAPbBr 3 @PS的荧光强度保持70％，在95％的温度下浸泡后保持85％。 °C持续350分钟，在UV灯下照射100 h后达到90％。MAPbBr的出色稳定性3 PS纤维膜可归因于MAPbBr 3晶体和PS纤维之间的氢键。此外，还制作了基于MAPbBr 3 @PS光纤的高亮度白光发光二极管，充分展示了其在色彩转换领域的应用前景。©2020工业化学学会
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