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The Interplay of Quantum Confinement and Hydrogenation in Amorphous Silicon Quantum Dots
Author(s) -
Askari Sadegh,
Svrcek Vladmir,
Maguire Paul,
Mariotti Davide
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.201503013
Subject(s) - quantum dot , materials science , amorphous solid , photoluminescence , nanotechnology , silicon , amorphous silicon , optoelectronics , crystalline silicon , chemistry , crystallography
Hydrogenation in amorphous silicon quantum dots (QDs) has a dramatic impact on the corresponding optical properties and band energy structure, leading to a quantum‐confined composite material with unique characteristics. The synthesis of a‐Si:H QDs is demonstrated with an atmospheric‐pressure plasma process, which allows for accurate control of a highly chemically reactive non‐equilibrium environment with temperatures well below the crystallization temperature of Si QDs.