The heavy metal free-near infrared 'CuInSeS/ZnS' core/shell quantum dot and its application in luminescent solar concentrator

摘要

The near infra-red CuInSeS/ZnS core/shell quantum dots have been investigated toward luminescent solar concentration applications. This quantum dots possess advantages of Stocks shift as large as more than 0.43eV and high photoluminescence quantum yield of 70%. The paper presents the effect of large stock shift CuInSeS/ZnS quantum dots on reducing the reabsorption losses in Luminescent solar concentrators by using experimental investigation. The Luminescent solar concentrators sheet was fabricated in dimension of 40 mm × 30 mm × 3mm by dispersing 0.03 % wt. CuInSeS/ZnS quantum dots particles in a polymethylmethacrylate waveguide and their optical properties (absorptions/emissions) were characterized. Results are showing that the CuInSeS/ZnS quantum dots - Luminescent solar concentrators provides a promising way for the reduction of reabsorption losses in Luminescent solar concentrators.