Robust CsPbBr3 and CdSe / Dy3++CdSe quantum dot doped glass nanocomposite hybrid coupling as color converter for solid-state lighting applications

Secondary Crystallization Mechanism of Nanocrystalline Induced by Mechanical Ball Milling in Borosilicate Glass

“…These characteristic Raman peaks appearing in BG6-60 indicate that there are numerous PN in the BG6-60 sample because if the content of PN is small, the characteristic peaks of PN usually cannot be detected . The Raman spectra (Figure e) show typical bending vibration modes of the Si–O–Si bond at 470.33 cm –1 , the hindered bending vibration of the ring-type metaborate group at 578.69 cm –1 , the stretching vibration of the Si–O–Si symmetric bond located at 767.54 cm –1 ; and the asymmetric stretching vibration of [SiO 4 ] at 1060.21 cm –1 . , Similarly, compared to PG-60, the peaks of BG6-60 in the long-wave range have enhanced significantly. On the one hand, it is considered that ball milling cannot break the Si–O bond and B–O bond due to the large bond energy (451 kJ mol –1 ), and then, [BO 3 ] triangle and [SiO 4 ] and [BO 4 ] tetrahedron are not destroyed.…”

Modulating the local structure of glass to promote in situ precipitation of perovskite CsPbBr3 quantum dots by introducing a network modifier

“…Nowadays, by traditional melt-quenching and the subsequent heat treatment method, the CsPbBr 3 QDs have been successfully in situ precipitated in phosphosilicate glasses, [18][19][20][21][22][23] borosilicate glasses, 12,[24][25][26] tellurite-based glasses, 10,27 boron-germanium glasses, 28 etc. Nevertheless, the rigid and highly polymerized structure of the glass matrix hinders the growth and assembly of CsPbBr 3 QDs by limiting the diffusion of Cs + , Pb 2+ , and Br À ions, and results in their poor luminescence properties.…”

Highly Efficient and Stable CdZnSeS/ZnSeS Quantum Dots for Application in White Light-Emitting Diode

“…Semiconductor quantum dots (QDs) have shown emerging significant promise as solid-state lightings and displays ( Li et al, 2020 ; Zvaigzne et al, 2020 ), sensors ( Koeppel et al, 2007 ; Liang et al, 2021 ), biomedicine ( Zvaigzne et al, 2016 ; Pashazadeh-Panahi and Hasanzadeh, 2019 ), biological labeling ( Bai et al, 2020 ), solar cell ( Xu T. et al, 2021 ; Ostadebrahim and Dehghani, 2021 ), and laser physics ( Nautiyal et al, 2021 ; Tsuji et al, 2021 ) owing to their superior optoelectronic properties such as high photoluminescence (PL) quantum yield (QY) (PLQY), narrow emission bandwidth, size-controlled tunable emission wavelength, and high photochemical stability and durability ( Zhang et al, 2015 ; Li Q. et al, 2016 ; Harris et al, 2016 ; Leach and Macdonald, 2016 ; Giansante and Infante, 2017 ; Owen and Brus, 2017 ; Ghosh and Manna, 2018 ). In particular, QDs are considered to be the candidate materials with the most potential for application in the next generation of lightings and displays ( Moon and Chae, 2020 ; Fang et al, 2021 ; Kıbrıslı et al, 2021 ; Li et al, 2021 ; Yuan et al, 2021 ). As the core materials of light-emitting diode (LED) devices based on the QDs, high luminescence efficiency and stable luminescence properties are one of the crucial factors for large-scale commercialization.…”