Colloidal Cu2ZnSn(S1-,Se )4-Au nano-heterostructures for inorganic perovskite photovoltaic applications as photocathode alternative

Unusual Stability and Temperature-Dependent Properties of Highly Emissive CsPbBr3 Perovskite Nanocrystals Obtained from in Situ Crystallization in Poly(vinylidene difluoride)

“…In recent years, all-inorganic CsPbBr 3 perovskite nanocrystals (NCs) have attracted widespread attention as a new type of photovoltaic material. CsPbBr 3 NCs have many exceptional properties, such as excellent photoluminescence quantum yield (PLQY), narrow spectral bandwidth, and wide spectral tunability, which lay the foundation for the scientific and practical applications of CsPbBr 3 NCs. − It is worth mentioning that CsPbBr 3 NCs have already found broad applicability to optoelectronic devices, such as light-emitting diodes (LED), , solar cells, − photodetectors, , and lasers. − However, they are easily decomposed by heat, oxygen, ultraviolet (UV) radiation, and moisture on account of the strong ionic character and low formation energy of CsPbBr 3 NCs. , As a consequence, CsPbBr 3 perovskite nanocrystals have poor stability, greatly limiting their practical applications.…”

Growth Processes of Cu2ZnSn(S1−x,Sex)4-Au Nanocomposites: Microanalysis and Corresponding Impacts on Photovoltaic Properties

“…After stirring, the reactant with Au particles was dropwise added into prepared CZTS/CZTSSe solution, and then the methanol was immediately added for precipitating. The detailed synthesis protocols were reported in our previous work [4]. The microstructures of products were examined by high resolution transmission electron microscopy (HRTEM, JEM2100 with 200 kV accelerating voltage).…”

“…Designing nano-heterostructures of CZTSSe coupling with noble metal particles could help to develop novel plasmon-enhanced photovoltaic/photocatalytic materials [3]. Crystallographic analysis of Cu2ZnSn(S1-x,Sex)4 nanoparticles has been reported in our previous work [4]. In this work, we mainly explore growth processes of Au nanoparticles at Cu2ZnSn(S1-x,Sex)4 in order to obtain valuable information on the correlations between photovoltaic performance and nanocomposite structures.…”