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Details van artikel 7 van 11 gevonden artikelen
| Titel: |
Cd1-xHgxS thin film electrodes: an electrochemical solar cell approach |
| Auteur: |
Garadkar, K. M. Hankare, P. P. |
| Verschenen in: |
International journal of electronics |
| Paginering: | Jaargang 86 (1999) nr. 11 pagina's 1311-1320 |
| Jaar: |
1999-11-01 |
| Inhoud: |
The photoelectrochemical properties of a HgxCd1-xS alloyed/mixed type semiconductor/electrolyte interface are reported in this paper. HgxCd1-xS electrodes of varying composition (x = 0:0 to 0.5) were obtained on stainless steel substrates from salt solutions of cadmium and mercury in a volume stoichiometric proportion by employingasimplechemicalgrowthprocess. Electrochemicalsolar cellsweredevised from these electrodes and the interface properties have been studied as a function of the photoelectrode composition x. The dynamic V-I characteristics in the dark showed the rectifying nature of the junctions with the presence of recombination centres at the interface. The V-C characteristics showed that introduction of Hg into CdS makes CdS more negative (maximum at x = 0:05), thereby increasing the flat band potential and consequently the open circuit photopotential. The short circuit photocurrent is also found to be increased. The efficiency eta (%) and form factor FF (%) have been found to be enhanced from 0.012% to 0.054% and from 35.5% to 46.8%, respectively (at x = 0:05). Thecomputationof other cellparameters (nd, nL, phiB, RS Rsh) also revealed that the cellperformance is improved after addition of small traces of Hg into the host CdS. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 11 gevonden artikelen
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