Growth and Characterization of All-inorganic Perovskite CsPbBr₃ Crystal by a Traveling Zone Melting Method

Abstract

A self-designed traveling zone melting method was employed to fabricate perovskite CsPbBr 3 crystals, which is helpful for impurities removing and moisture excluding. A large-size CsPbBr 3 crystal with a dimension of  25 mm× 60 mm is successfully obtained. The as-grown crystal shows orange color and displays an excellent transmittance of 78.6% in the range of 600 nm  2000 nm wavelength. It is revealed by DSC analysis that there is phase transition at 88.1℃ and 131.25℃, respectively. The band gap E g of the crystal is calculated to be 2.25 eV.The above results prove that the traveling zone melting method is indeed a potential approach for large size and high quality CsPbBr 3 crystal preparation.

Unveiling the Promoted LSTM/YSZ Composite Anode for Direct Utilization of Hydrocarbon Fuels

“…In conventional SOFC configurations, the utilization of Ni/YSZ (Zr x Y 1-x O 2 ) cermet has been explored as a promising material for the anode electrode due to its numerous advantages, including low impedance in the presence of hydrogen and catalytic activity for methane steam reforming [29][30][31][32][33]. Nonetheless, this material is not without its drawbacks, notably exhibiting low redox stability and a high susceptibility to coking and sulfur poisoning when hydrocarbon fuels are employed [34][35][36].…”

Ultrasensitive and Robust CsPbBr3 Single-Crystal X-ray Detectors Based on Interface Engineering

“…14−16 In contrast, the allinorganic CsPbBr 3 perovskite shows better chemical and environmental stability. 17,18 Besides, many synthetic approaches have been reported to grow high-quality CsPbBr 3 single crystals (SCs), including inverse-temperature crystal-lization, 19,20 antisolvent vapor-assisted crystallization, 21 and the high-temperature Bridgman method. 22,23 Nevertheless, the majority of previously reported detector performance based on CsPbBr 3 SCs is inferior to that of OIHP SCs.…”

“…Generally, organic–inorganic hybrid perovskites (OIHPs) own poor stability under environmental conditions due to the volatility of organic molecules. − In contrast, the all-inorganic CsPbBr 3 perovskite shows better chemical and environmental stability. , Besides, many synthetic approaches have been reported to grow high-quality CsPbBr 3 single crystals (SCs), including inverse-temperature crystallization, , antisolvent vapor-assisted crystallization, and the high-temperature Bridgman method. , Nevertheless, the majority of previously reported detector performance based on CsPbBr 3 SCs is inferior to that of OIHP SCs . The main reason lies in the much smaller μτ product for CsPbBr 3 SCs, which represents less charge collection efficiency. − …”

Optimizing methane direct utilization: The advanced Sr2CoMoO6-δ anode

“…In conventional SOFC configurations, Ni/YSZ (ZrxY1-xO2) cermet serves as a promising material for the anode electrode, offering advantages such as low impedance in the presence of hydrogen and catalytic activity for methane steam reforming [40][41][42][43][44][45][46][47]. However, this material presents certain drawbacks, notably low redox stability, and heightened catalytic activity leading to coking and sulfur poisoning when utilized with hydrocarbon fuels [48][49][50].…”