Cu/Selenium Quantum Dots Proposed For Eco-Friendly Solar Cells ACSSustainable quantumdots renewableenergy solarenergy solarcell
By Shaheer RehanSep 21 2022Reviewed by Megan Craig, M.Sc. Cu-based ternary chalcogenides have exhibited great potential as cheap, eco-friendly substitutes for heavy-metal-based photosensitizers. Cu-based selenium quantum dots produced by sequential ionic layer adsorption and reaction have an ideal energy band gap, attractive photoresponsivity, and light absorption.
The Struggle for Green Photovoltaics Developing high-performance photovoltaic materials made of non-toxic and abundantly available components is a primary focus in fulfilling the ever-increasing demands for power. Silver-based materials were the first triple chalcogenides to be used in photovoltaic modules and have already achieved a power conversion efficiency equal to 9% in a short period.
The main shortcoming of previous work on such ABX2 chalcogenides was that their quantum dots were manufactured via solution-processed dispersion or evaporation methods, which are unsuitable for real-time operations, as opposed to the durable SILAR approach employed in this study. The charge transport dispersion kinetics across the surfaces of the Cu-based selenium quantum dots revealed the requirement for passivation methods when studied using resistance spectrometry.
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