Premium
The Silicon:Colloidal Quantum Dot Heterojunction
Author(s) -
Masala Silvia,
Adinolfi Valerio,
Sun JonPaul,
Gobbo Silvano Del,
Voznyy Oleksandr,
Kramer Illan J.,
Hill Ian G.,
Sargent Edward H.
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201503212
Subject(s) - heterojunction , materials science , photodetector , quantum dot , optoelectronics , silicon , semiconductor , infrared , colloid , nanotechnology , optics , chemical engineering , physics , engineering
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.