Journal article
Intensity-dependent relaxation of photoconductivity in nanocrystalline titania thin films
- Abstract:
- We have discovered that the initial rate of the post-illumination decay of photoconductivity in nanocrystalline TiO2 depends on the intensity of the illumination. The phenomenon is described by hole detrapping processes affected by electrostatic interactions between the trapped holes, and screening of these interactions by free electrons. The analysis allows determination of both the electron concentration and the electron mobility. In our materials, the value of electron mobility μ ≈ 10-6 cm2 V-1 s-1, in good agreement with results obtained by other methods.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 117.4KB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevB.73.113317
Authors
+ Engineering and Physical Sciences Research Council
More from this funder
- Funding agency for:
- Briggs, A
- Publisher:
- American Physical Society
- Journal:
- Physical Review B More from this journal
- Volume:
- 73
- Issue:
- 11
- Pages:
- 113317
- Publication date:
- 2006-03-01
- Edition:
- Publisher's version
- DOI:
- EISSN:
-
1550-235x
- ISSN:
-
1098-0211
- Language:
-
English
- Keywords:
- Subjects:
- UUID:
-
uuid:892267ef-90c4-453c-9e7d-e960211ba811
- Local pid:
-
ora:1026
- Deposit date:
-
2008-03-14
Terms of use
- Copyright holder:
- The American Physical Society
- Copyright date:
- 2006
- Notes:
- Citation: Xie, Z. et al. (2006) 'Intensity-dependent relaxation of photoconductivity in nanocrystalline titania thin films', Physical Review B [Online], 73 (11), 113317. [Available at http://prb.aps.org/].
If you are the owner of this record, you can report an update to it here: Report update to this record