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All‐Inorganic Colloidal Perovskite Quantum Dots: A New Class of Lasing Materials with Favorable Characteristics
Author(s) -
Wang Yue,
Li Xiaoming,
Song Jizhong,
Xiao Lian,
Zeng Haibo,
Sun Handong
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.201503573
Subject(s) - materials science , perovskite (structure) , halide , lasing threshold , quantum dot , colloid , optoelectronics , nanotechnology , wavelength , inorganic chemistry , chemical engineering , chemistry , engineering
All‐inorganic colloidal cesium lead halide perovskite quantum dots (CsPbX 3 , X = Cl, Br, I) are revealed to be a new class of favorable optical‐gain materials, which show combined merits of both colloidal quantum dots and halide perovskites. Low‐threshold and ultrastable stimulated emission is demonstrated under atmospheric conditions with wavelength tunability across the whole visible spectrum via either size or composition control.