The Silicon:Colloidal Quantum Dot Heterojunction

Silvia Masala, Valerio Adinolfi, Jon Paul Sun, Silvano Del Gobbo, Oleksandr Voznyy, Illan J. Kramer, Ian G. Hill, Edward H. Sargent*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


A heterojunction between crystalline silicon and colloidal quantum dots (CQDs) is realized. A special interface modification is developed to overcome an inherent energetic band mismatch between the two semiconductors, and realize the efficient collection of infrared photocarriers generated in the CQD film. This junction is used to produce a sensitive near infrared photodetector.

Original languageEnglish (US)
Pages (from-to)7445-7450
Number of pages6
JournalAdvanced Materials
Issue number45
StatePublished - Dec 2 2015


  • PbS
  • colloidal quantum dots
  • heterostructures
  • infrared
  • photodectors

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • General Materials Science


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