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Title: Enhanced photoluminescence of potassium-doped tungsten oxide by acetone exposure
Studies of optical properties of doped nanocrystals of tungsten trioxide can elucidate new information about the material. A novel molecule-enhanced photoluminescence (PL) of potassium-doped tungsten trioxide (K x WO) was explored in the presence of different gases to understand charge transfer between molecules and K x WO on the properties of the material. We performed Raman spectroscopy and PL experiments in the presence of gaseous acetone or ethanol mixed with other gases (N 2 and O 2 ). PL at 630 nm from K x WO was observed and further enhanced when the sample was continuously irradiated with a 532 nm CW laser in acetone. A mechanism of strong emission of the PL induced by the charge transfer between the acetone and the K x WO is proposed.  more » « less
Award ID(s):
2218046 1905043 1941100 2226202
Author(s) / Creator(s):
; ; ; ; ; ;
Publisher / Repository:
Royal Society of Chemistry
Date Published:
Journal Name:
RSC Advances
Page Range / eLocation ID:
1236 to 1244
Medium: X
Sponsoring Org:
National Science Foundation
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