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Novel ultra-stable and highly luminescent white light-emitting diodes from perovskite quantum dots-Polymer nanofibers through biaxial electrospinning

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Title: Novel ultra-stable and highly luminescent white light-emitting diodes from perovskite quantum dots-Polymer nanofibers through biaxial electrospinning
Authors: Jiang, Dai-Hua Browse this author
Tsai, Yi-Hsuan Browse this author
Veeramuthu, Loganathan Browse this author
Liang, Fang-Cheng Browse this author
Chen, Lung-Chin Browse this author
Lin, Chun Che Browse this author
Satoh, Toshifumi Browse this author →KAKEN DB
Tung, Shih-Huang Browse this author
Kuo, Chi-Ching Browse this author
Issue Date: Nov-2019
Publisher: American Institute of Physics (AIP)
Journal Title: APL materials
Volume: 7
Issue: 11
Start Page: 111105
Publisher DOI: 10.1063/1.5124880
Abstract: Cesium lead halide perovskite quantum dots (QDs) have drawn extensive attention due to their excellent optical properties. However, their use is limited by poor stability. To enhance their stability, we electrospun perovskite-embedded fibers from composite CsPbX3 (X = Cl, Br, and I) perovskite QDs, blending with three polymers, poly(styrene-butadiene-styrene) (SBS), poly(methyl methacrylate) (PMMA), or polystyrene (PS), for the light-emitting diode (LED) applications. We found that the stretchable CsPbBr3@SBS fibers revealed the highest photoluminescence quantum yield, the CsPbBr3@PMMA fibers demonstrated a high thermal stability, and the CsPbBr3@PS fibers exhibited the best water-resistant stability. The photoluminescence intensity maintained 83% of its initial intensity for more than 3 months in water. Furthermore, the LED devices are manufactured from the blue chips and packaged with the core/shell red and green perovskite-based fibers by using biaxial electrospinning exhibited stable and highly efficient white luminescence. The luminance and efficiency are higher than 400% of the values of multilayered structures. (C) 2019 Author(s).
Rights: Jiang Dai-Hua, APL Materials, Vol. 7, 111105, 2019; licensed under a Creative Commons Attribution (CC BY) license.
https://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/76805
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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