The promotion of TiO2 induction for finely tunable self-crystallized CsPbX3 (X = Cl, Br and I) nanocrystal glasses for LED backlighting display

Ultra-stable narrowband green-emitting CsPbBr3 quantum dot-embedded glass ceramics for wide color gamut backlit displays

“…8 It is worth mentioning that inorganic glass is regarded as an ideal encapsulation material for PQDs due to its dense network structure and excellent physical/chemical properties, which can provide adequate protection from the harsh environment. [23][24][25][26][27][28][29][30][31] 27 In fact, CsPbX 3 @glass has sufficient stability to meet the application requirements, but there are still some issues to be solved to achieve the demand for wide color gamut display. For example, the PLQY of CsPbX 3 @glass is very low and its FWHM is wider compared to that of its colloidal CsPbX 3 counterpart.…”

“…8 It is worth mentioning that inorganic glass is regarded as an ideal encapsulation material for PQDs due to its dense network structure and excellent physical/chemical properties, which can provide adequate protection from the harsh environment. 23–31 Liu et al prepared CsPbBrI 2 QDs embedded in borosilicate glass, which maintained 95.8% of its initial PL intensity after 500 h aging test at 85%RH and 85 °C. 27 In fact, CsPbX 3 @glass has sufficient stability to meet the application requirements, but there are still some issues to be solved to achieve the demand for wide color gamut display.…”

Crystallization regulation of solution-processed two-dimensional perovskite solar cells

“…Currently, 3D metal halide perovskites are one of the most widely investigated photovoltaic semiconductor materials with a general formula of ABX 3 , where the A is an organic or inorganic short-chain cation (like methylammonium (MA + ), formamidinium (FA + ), or cesium (Cs + )), B is a divalent metal cation (like Pb 2+ and Sn 2+ ), and X is a halogen anion (like I − , Br − , or Cl − ). 31 The [BX 6 ] 4− octahedra connect each other through the corner-sharing mode to form an isotropic inorganic framework, where B-site cations occupy the center of the octahedra, A-site cations fill the voids between the inorganic frameworks and the X-site halogen ions with strong electronegativity are accommodated at the corners of the octahedra. 32 With the extra introduction of bulky organic cations, the original chemical bonds between octahedra are destroyed and lower-dimensional structures are formed instead.…”

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

“…29 Xiang et al added TiO 2 into the borosilicate glass matrix to change the glass network structure, and achieved self-crystallization of CsPbBr 3 QDs because TiO 2 as a kind of oxide nucleating agent can promote the nucleation of CsPbBr 3 QDs. 30 Qiu et al changed the glass network structure and the degree of phase separation by doping borosilicate glass with LiBr and also realized the self-crystallization of CsPbBr 3 QDs. 31 Chen et al introduced F − into the borosilicate glass system to break the tight glass network, enabling the luminescence intensity and IQE of CsPbBr 3 QDs to be obviously enhanced.…”