Infrared Quantum Dots: Progress, Challenges and Opportunities

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Abstract

Infrared technologies provide tremendous value to our modern-day society. The need for easy-to-fabricate, solution-processable, tunable infrared active optoelectronic materials has driven the development of infrared colloidal quantum dots, whose band gaps can readily be tuned by dimensional constraints due to the quantum confinement effect. In this Perspective, we summarize recent progress in the development of infrared quantum dots both as infrared light emitters (e.g., in light-emitting diodes, biological imaging, etc.) as well as infrared absorbers (e.g., in photovoltaics, solar fuels, photon up-conversion, etc.), focusing on how fundamental breakthroughs in synthesis, surface chemistry, and characterization techniques are facilitating the implementation of these nanostructures into exploratory device architectures as well as in emerging applications. We discuss the ongoing challenges and opportunities associated with infrared colloidal quantum dots.
Original languageAmerican English
Pages (from-to)939-953
Number of pages15
JournalACS Nano
Volume13
Issue number2
DOIs
StatePublished - 2019

NREL Publication Number

  • NREL/JA-5900-73029

Keywords

  • infrared applications
  • infrared materials
  • quantum dots
  • solar-photochemistry

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