Sökning: id:"swepub:oai:DiVA.org:liu-54620" >
Origin of the surfa...
Origin of the surface recombination centers in ZnO nanorods arrays by X-ray photoelectron spectroscopy
-
- Yang, Li-Li (författare)
- Linköpings universitet,Fysik och elektroteknik,Tekniska högskolan,Institute of Condensed State Physics, Jilin Normal University, Siping, People's Republic of China
-
- Zhao, Qingxiang (författare)
- Linköpings universitet,Fysik och elektroteknik,Tekniska högskolan
-
- Willander, Magnus (författare)
- Linköpings universitet,Fysik och elektroteknik,Tekniska högskolan
-
visa fler...
-
- Liu, Xianjie (författare)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
-
- Fahlman, Mats (författare)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
-
- Yang, J H (författare)
- Institute of Condensed State Physics, Jilin Normal University, Siping, People's Republic of China
-
visa färre...
-
(creator_code:org_t)
- Amsterdam, Netherlands : Elsevier, 2010
- 2010
- Engelska.
-
Ingår i: Applied Surface Science. - Amsterdam, Netherlands : Elsevier. - 0169-4332 .- 1873-5584. ; 256:11, s. 3592-3597
- Relaterad länk:
-
https://liu.diva-por... (primary) (Raw object)
-
visa fler...
-
http://liu.diva-port...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The surface composition of as-grown and annealed ZnO nanorods arrays (ZNAs) grown by a two-step chemical bath deposition method has been investigated by X-ray photoelectron spectroscopy (XPS). XPS confirms the presence of OH bonds and specific chemisorbed oxygen on the surface of ZNAs, as well as H bonds on (1 0 (1) over bar 0) surfaces which has been first time observed in the XPS spectra. The experimental results indicated that the OH and H bonds play the dominant role in facilitating surface recombination but specific chemisorbed oxygen also likely affect the surface recombination. Annealing can largely remove the OH and H bonds and transform the composition of the other chemisorbed oxygen at the surface to more closely resemble that of high temperature grown ZNAs, all of which suppresses surface recombination according to time-resolved photoluminescence measurements.
Nyckelord
- ZnO nanorods
- Optical properties
- Surface recombination
- X-ray photoelectron spectroscopy
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas