Mandal, K. C. ; Basu, S. ; Bose, D. N. (1987) Effect of surface modification on sub-bandgap response of n-CdTe photoelectrodes Surface Science, 188 (1-2). pp. 235-240. ISSN 0039-6028
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00396...
Related URL: http://dx.doi.org/10.1016/S0039-6028(87)80154-1
Abstract
Sub-bandgap response has been shown to be a powerful and sensitive indicator of the nature of the surfaces of n-CdTe photoelectrodes. It has been shown that surface modification of n-CdTe photoelectrodes by Ru3+ ions diminishes sub-bandgap response in Te2-/Te22- redox electrolyte but on heat treatment it enhances. It is further shown that surface dissolution in [Fe(CN)6]4-/3- redox leads to enhanced sub-bandgap response. The results are correlated with the increase in flat-band potential and contact-potential-difference (CPD) due to Ru3+ modification as demonstrated by C-V and CPD measurements.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 5733 |
| Deposited On: | 19 Oct 2010 11:16 |
| Last Modified: | 20 May 2011 10:43 |
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