High-Performance CuInS2 Quantum Dot Laminated Glass Luminescent Solar Concentrators for Windows

Robert Guglielmetti, Matthew Bergren, Nikolay Makarov, Karthik Ramasamy, Aaron Jackson, Hunter McDaniel

Research output: Contribution to journalArticlepeer-review

177 Scopus Citations


Building-integrated sunlight harvesting utilizing laminated glass luminescent solar concentrators (LSCs) is proposed. By incorporating high quantum yield (>90%), NIR-emitting CuInS2/ZnS quantum dots into the polymer interlayer between two sheets of low-iron float glass, a record optical efficiency of 8.1% is demonstrated for a 10 cm x 10 cm device that transmits ~44% visible light. After completing prototypes by attaching silicon solar cells along the perimeter of the device, the electrical power conversion efficiency was certified at 2.2% with a black background and at 2.9% using a reflective substrate. This 'drop-in' LSC solution is particularly attractive because it fits within the existing glazing industry value chain with only modest changes to typical glazing products. Performance modeling predicts >1 GWh annual electricity production for a typical urban skyscraper in most major U.S. cities, enabling significant energy cost savings and potentially 'net-zero' buildings.
Original languageAmerican English
Pages (from-to)520-525
Number of pages6
JournalACS Energy Letters
Issue number3
StatePublished - 2018

NREL Publication Number

  • NREL/JA-5500-71228


  • efficiency
  • luminescent solar concentrators
  • polymers
  • quantum dots


Dive into the research topics of 'High-Performance CuInS2 Quantum Dot Laminated Glass Luminescent Solar Concentrators for Windows'. Together they form a unique fingerprint.

Cite this