Study on synthesis and photoelectric properties of AgInS2 quantum dots

Yuan, Binxia; Luo, Zige; Sun, Yongjun; Cao, Sheng; Cao, Lan; Li, Min

doi:10.2478/pjct-2022-0010

Abstract

AgInS₂ Quantum dots (AIS QDs) have high quantum yield and catalytic performance, which is promising materials in photo-catalytic and optoelectronic fields. In the paper, it adopted a simple and non-toxic method to synthesize AIS QDs. The effect of reaction temperature on the growth mechanism, optical and physical properties of AIS had been extensively investigated by using L-cysteine as the sulfur source, and their application in catalytic hydrogen production was also studied. The results demonstrated that the fluorescence properties will be quenched with the increase of temperature, indicating that the separation speed of electron hole pairs of samples obtained at higher temperature was faster. Meantime, the electron transport capacity and the photocurrent had also improved with the increase of reaction temperature. Finally, the sample obtained at 100 ^oC had higher hydrogen production rate.

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Study on synthesis and photoelectric properties of AgInS2 quantum dots

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