Enhanced Photoluminescence in Acetylene-Treated ZnO Nanorods

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Jäppinen , L , Jalkanen , T , Sieber , B , Addad , A , Heinonen , M , Kukk , E , Radevici , I , Paturi , P , Peurla , M , Shahbazi , M-A , Santos , H A , Boukherroub , R , Santos , H , Lastusaari , M & Salonen , J 2016 , ' Enhanced Photoluminescence in Acetylene-Treated ZnO Nanorods ' Nanoscale Research Letters , vol. 11 , 413 . DOI: 10.1186/s11671-016-1627-y

Title: Enhanced Photoluminescence in Acetylene-Treated ZnO Nanorods
Author: Jäppinen, Luke; Jalkanen, Tero; Sieber, Brigitte; Addad, Ahmed; Heinonen, Markku; Kukk, Edwin; Radevici, Ivan; Paturi, Petriina; Peurla, Markus; Shahbazi, Mohammad-Ali; Santos, Hélder A.; Boukherroub, Rabah; Santos, Hellen; Lastusaari, Mika; Salonen, Jarno
Contributor: University of Helsinki, Division of Pharmaceutical Chemistry and Technology
University of Helsinki, Division of Pharmaceutical Chemistry and Technology
Date: 2016-09-20
Language: eng
Number of pages: 11
Belongs to series: Nanoscale Research Letters
ISSN: 1556-276X
URI: http://hdl.handle.net/10138/168060
Abstract: Zinc oxide (ZnO) nanorods were manufactured using the aqueous chemical growth (ACG) method, and the effect of thermal acetylene treatment on their morphology, chemical composition, and optical properties was investigated. Changes in the elemental content of the treated rods were found to be different than in previous reports, possibly due to the different defect concentrations in the samples, highlighting the importance of synthesis method selection for the process. Acetylene treatment resulted in a significant improvement of the ultraviolet photoluminescence of the rods. The greatest increase in emission intensity was recorded on ZnO rods treated at the temperature of 825 degrees C. The findings imply that the changes brought on by the treatment are limited to the surface of the ZnO rods.
Subject: ZnO
Photoluminescence
C2H2
Nanorods
Thermal annealing
ZINC-OXIDE NANOSTRUCTURES
MN-DOPED ZNO
THIN-FILM
ROOM-TEMPERATURE
GAS SENSOR
FERROMAGNETISM
CARBON
NANOWIRES
MICRORODS
GROWTH
221 Nano-technology
114 Physical sciences
317 Pharmacy
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