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Doctor-blade deposition of quantum dots onto standard window glass for low-loss large-area luminescent solar concentrators

Author

Listed:
  • Hongbo Li

    (Center for Advanced Solar Photophysics, Los Alamos National Laboratory)

  • Kaifeng Wu

    (Center for Advanced Solar Photophysics, Los Alamos National Laboratory)

  • Jaehoon Lim

    (Center for Advanced Solar Photophysics, Los Alamos National Laboratory)

  • Hyung-Jun Song

    (Center for Advanced Solar Photophysics, Los Alamos National Laboratory)

  • Victor I. Klimov

    (Center for Advanced Solar Photophysics, Los Alamos National Laboratory)

Abstract

Luminescent solar concentrators (LSCs) are envisioned to reduce the cost of solar electricity by decreasing the usage of more expensive photovoltaic (PV) materials and diminishing the complexity of multi-cell PV modules. The LSC concept can also enable unconventional solar-energy conversion devices such as PV windows that can be especially useful in highly populated urban areas. Here we demonstrate low-loss, large-area (up to about 90 × 30 cm2) LSCs fabricated from colloidal core/shell quantum dots (QDs) whose optical spectra are tailored so as to minimize self-absorption of waveguided radiation. For improved compatibility with a polymer matrix and enhanced stability, QDs are encapsulated into silica shells, which allows for maintaining high emission efficiencies (∼70% quantum yields) under four-month exposure to air and light, and heat treatments up to 200 ∘C. The QD/polymer composites are processed into devices using standard doctor-blade deposition onto commercial window glasses. The fabricated semi-transparent devices demonstrate internal quantum efficiencies of more than 10% for dimensions of tens of centimetres.

Suggested Citation

  • Hongbo Li & Kaifeng Wu & Jaehoon Lim & Hyung-Jun Song & Victor I. Klimov, 2016. "Doctor-blade deposition of quantum dots onto standard window glass for low-loss large-area luminescent solar concentrators," Nature Energy, Nature, vol. 1(12), pages 1-9, December.
    • Handle: RePEc:nat:natene:v:1:y:2016:i:12:d:10.1038_nenergy.2016.157
    DOI: 10.1038/nenergy.2016.157
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    Cited by:

    1. Mikhail Vasiliev & Mohammad Nur-E-Alam & Kamal Alameh, 2019. "Recent Developments in Solar Energy-Harvesting Technologies for Building Integration and Distributed Energy Generation," Energies, MDPI, vol. 12(6), pages 1-23, March.
    2. Hak June Lee & Seongbin Im & Dongju Jung & Kyuri Kim & Jong Ah Chae & Jaemin Lim & Jeong Woo Park & Doyoon Shin & Kookheon Char & Byeong Guk Jeong & Ji-Sang Park & Euyheon Hwang & Doh C. Lee & Young-S, 2023. "Coherent heteroepitaxial growth of I-III-VI2 Ag(In,Ga)S2 colloidal nanocrystals with near-unity quantum yield for use in luminescent solar concentrators," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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