DocumentCode
2747723
Title
Carrier and exciton spin dynamics in Cu-doped ZnO nanowires
Author
Sum, Tze Chien ; Xing, Guozhong ; Xing, Guichuan ; Sie, Edbert Jarvis ; Wu, Tom ; Huan, Cheng Hon Alfred
Author_Institution
Div. of Phys. & Appl. Phys., Nanyang Technol. Univ., Singapore, Singapore
fYear
2011
fDate
9-13 Oct. 2011
Firstpage
246
Lastpage
247
Abstract
Time resolved photoluminescence and transient absorption spectroscopy reveal an ultrafast charge transfer process, occurring within 39 ± 9 ps, between the ZnO host and the Cu dopants in Cu-doped ZnO nanowires. Optical orientation experiments reveal a long-lived, highly spin-polarized excitonic emission from this system.
Keywords
II-VI semiconductors; copper; excitons; nanowires; optical materials; photoluminescence; spin dynamics; time resolved spectra; zinc compounds; Cu-doped ZnO nanowires; ZnO:Cu; carrier dynamics; exciton spin dynamics; spin-polarized excitonic emission; time 39 ps; time resolved photoluminescence; transient absorption spectroscopy; ultrafast charge transfer; Charge transfer; Computed tomography; Copper; Doping; Nanowires; Transient analysis; Zinc oxide;
fLanguage
English
Publisher
ieee
Conference_Titel
Photonics Conference (PHO), 2011 IEEE
Conference_Location
Arlington, VA
Print_ISBN
978-1-4244-8940-4
Type
conf
DOI
10.1109/PHO.2011.6110519
Filename
6110519
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