Novel CsPbI3 QDs glass with chemical stability and optical properties. Issue 4 (April 2018)

• Record Type: Journal Article
• Authors: Liu, Sijin; Luo, Yangkai; He, Meiling; Liang, Xiaojuan; Xiang, Weidong
• Is Part Of: Journal of the European Ceramic Society. Volume 38:Issue 4(2018)
• Page Start: 1998
• Page End: 2004
• Publication Date: 2018-04
• Subjects: Perovskite stability -- CsPbI3 QDs glass -- Melting–quenching technique -- Photoluminescence; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2017.10.012
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: Bright and tunable photoluminescence properties for cesium lead halide (CsPbX3 ) quantum dots (QDs) hinder its application due to their easy degradation in humid and high temperature conditions. Here, we present a simple approach to fabricate a novel CsPbI3 QDs in zinc borosilicate glass through a conventional melting–quenching technique. CsPbI3 QDs glass exhibits high luminescent intensity, tunable narrow-band emission, including the same bandgap energies and emission spectra as CsPbI3 QDs solution, but the quantum yield and decay time show a reduction for the structure defect and electron-hole consist in CsPbI3 QDs glass. Moreover, different heat-treated temperature effect the luminescence of CsPbI3 QDs glass. Absorption and photoluminescence spectra demonstrate that 540 °C is the ideal heat-treated temperature for CsPbI3 QDs glass. Consequently, this novel and stable CsPbI3 QDs glass reveals the promising candidate for all-inorganic perovskite in display and solid-state warm lighting source.