Nanosecond photoluminescence decay in zinc molybdate oxide nanocrystals observed by TCSPC and phase shift methods

Hydrothermally grown zinc molybdate oxide (ZMO) nanocrystals were prepared for their interesting scintillation properties at room temperature. Here we report on the comparison of two time resolved photoluminescence (PL) decay measurements of ZMO: one using time correlated single photon counting (TCS...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2024-12, Vol.2931 (1), p.12011
Main Authors: Remeš, Z, Neyková, N, Remeš, Š, Novák, R, Kučerková, R, Jarý, V, Mičová, J
Format: Article
Language:English
Subjects:
Decay
Excitation
Nanocrystals
Nanorods
Phase shift
Photoluminescence
Pulse duration
Room temperature
Short pulses
Time measurement
Zinc oxide
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Hydrothermally grown zinc molybdate oxide (ZMO) nanocrystals were prepared for their interesting scintillation properties at room temperature. Here we report on the comparison of two time resolved photoluminescence (PL) decay measurements of ZMO: one using time correlated single photon counting (TCSPC) based on short pulse excitation and the second based on the frequency resolved phase delay between sinusoidal excitation and emission. Both methods allow PL decay to be measured with a time resolution about 1 ns. While the time resolution of the TCSPC was limited by the excitation pulse width (slightly below 1 ns), the time resolution of the phase shift method was limited by the maximum operating frequency of the conventional UV LED (3 MHz). The phase method offers a low-cost alternative to TCSPC measurements of ZnO nanorods.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2931/1/012011