Solar light selective-harvesting eco-friendly colloidal quantum dots for transparent luminescent solar concentrators

文献情報

出版日 2023-10-13

DOI 10.1039/D3TA05351B

インパクトファクター 12.732

著者

Ehsan Hamzehpoor, Jiabin Liu, Xin Liu, Gurpreet Singh Selopal, Dmytro F. Perepichka, Zhiming M. Wang

原文を見る

要旨

Luminescent solar concentrators (LSCs) constructed using colloidal quantum dots (QDs) have emerged as a promising and cost-effective solution for transparent photovoltaics. However, the efficiency of these LSCs in converting sunlight to electricity often remains low due to limited quantum efficiency and significant reabsorption losses associated with the QDs. Furthermore, the majority of high-efficiency LSCs incorporate QDs containing heavy metals, curtailing their potential for widespread commercialization. Here, we have developed white-emitting CuGaS2/ZnS and its optical characteristics are adeptly tailored through manipulation of the ZnS shell. The optimal configuration of CuGaS2/ZnS demonstrates an impressive photoluminescence quantum yield of 80% and an extensive Stokes shift of ∼190 nm. These QDs are integrated in a polymer matrix to produce LSCs with dimensions of 5 × 5 × 0.2 cm3. Under standard illumination conditions of one sun AM 1.5G (100 mW cm−2), these LSCs exhibit an optical efficiency of 1.7%, average visible transmittance of ∼75% and color rendering index of 91.6. To improve the solar light harvesting, we constructed a tandem LSC, with CuGaS2/ZnS QD-LSC as the top layer and near-infrared-active AgInS2/ZnS QD-LSC was developed as the bottom layer. The optical efficiency could reach 4.4%, which underscores the potential of these environmentally friendly core/shell QDs for cost-effective transparent solar conversion applications.

掲載誌

Journal of Materials Chemistry A

CiteScore: 19.5

自己引用率: 4.7%

年間論文数: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

Solar light selective-harvesting eco-friendly colloidal quantum dots for transparent luminescent solar concentrators

文献情報

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