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Team: Nanoenergy Lab Hole Transport Materials Subgroup

Program:

Lead Sulfide Colloidal Quantum Dots are an attractive material for solar cells because solar cells based on them are thin, flexible, lightweight, and can absorb efficiently in the infrared region of the sun’s light spectrum. These qualities are not present in the silicon solar cells that are most commonly in use today. However, they are limited in performance by poor charge transport in the Hole Transport Layer. We demonstrate that evaporating sulfur atoms onto the Hole Transport Layer (sulfur infusion) addresses the poor charge transport, and significantly improves overall solar cell efficiency.

Susanna M. Thon

Team Members

  • Eric Rong
  • Arlene Chiu
  • Yida Lin
  • Chengchangfeng Lu
  • Susanna M. Thon

A depiction of our Lead Sulfide Colloidal Quantum Dot solar cell architecture with the Hole Transport Layer inset, showing improved charge transport with infused sulfur atoms. Figure taken with permission from https://doi.org/10.1021/acsenergylett.0c01586

A video describing background, motivation, methods, and results of our sulfur-infusion technique for improving Hole Transport Layer charge transport in Lead Sulfide Colloidal Quantum Dot solar cells.

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On March 5, 2021
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