DocumentCode :
644500
Title :
Fast electron trapping in anodized TiO2 nanotubes
Author :
Wehrenfennig, C. ; Palumbiny, C.M. ; Schmidt-Mende, L. ; Johnston, Michael B. ; Snaith, H.J. ; Herz, L.M.
Author_Institution :
Clarendon Lab., Univ. of Oxford, Oxford, UK
fYear :
2013
fDate :
1-6 Sept. 2013
Firstpage :
1
Lastpage :
1
Abstract :
We studied charge transport in anodized TiO2 nanotubes in the context of their application in dye-sensitized solar cells. Optical-pump-THz-probe spectroscopy revealed short free carrier lifetimes of about 15-30 ps, which we attribute to shallow trapping.
Keywords :
anodisation; carrier lifetime; charge exchange; electron traps; optical pumping; semiconductor nanotubes; solar cells; terahertz wave spectra; titanium compounds; TiO2; anodized nanotubes; charge transport; dye-sensitized solar cells; fast electron trapping; free carrier lifetimes; optical-pump-THz-probe spectroscopy; Electron traps; Nanoparticles; Nanotubes; Photovoltaic cells; Physics; Transient analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
Type :
conf
DOI :
10.1109/IRMMW-THz.2013.6665468
Filename :
6665468
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=644500
بازگشت