Photocurrent instability of PbS-sensitized TiO2 electrodes in S2- and SO3
2- solution

Jin Sup Hong; Don Sung Choi; Man Gu Kang; Donghwan Kim; Kang Jin Kim

Photocurrent instability of PbS-sensitized TiO₂ electrodes in S^2- and SO₃ ^2- solution

Jin Sup Hong, Don Sung Choi, Man Gu Kang, Donghwan Kim, Kang Jin Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

The mechanism of photocurrent decay with time of illumination of PbS-coated TiO₂ (PbS/TiO₂) photoelectrochemical cells in S^2- and SO₃ ^2- solution was investigated. The photocurrent decay at short circuit can primarily be attributed to the formation of PbSO₄ on the surface of PbS, followed by the dissolution of PbSO₄ into the aqueous solution. In the presence of pyridine or ethanol in the solution, the J_sc decay with time of illumination is reduced due to the suppression of the PbSO₄ formation.

Original language	English
Pages (from-to)	87-92
Number of pages	6
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	143
Issue number	1
Publication status	Published - 2001 Oct 1

Fingerprint

Photocurrents

photocurrents

Electrodes

electrodes

decay

Lighting

illumination

Photoelectrochemical cells

short circuits

Short circuit currents

Pyridine

pyridines

dissolving

Dissolution

Ethanol

ethyl alcohol

retarding

aqueous solutions

cells

Keywords

PbS
PbSO
Photocurrent instability
TiO

ASJC Scopus subject areas

Bioengineering
Physical and Theoretical Chemistry

Cite this

Hong, J. S., Choi, D. S., Kang, M. G., Kim, D., & Kim, K. J. (2001). Photocurrent instability of PbS-sensitized TiO₂ electrodes in S^2- and SO₃ ^2- solution. Journal of Photochemistry and Photobiology A: Chemistry, 143(1), 87-92.

Photocurrent instability of PbS-sensitized TiO₂ electrodes in S^2- and SO₃ ^2- solution. / Hong, Jin Sup; Choi, Don Sung; Kang, Man Gu; Kim, Donghwan; Kim, Kang Jin.

In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 143, No. 1, 01.10.2001, p. 87-92.

Research output: Contribution to journal › Article

Hong, JS, Choi, DS, Kang, MG, Kim, D & Kim, KJ 2001, 'Photocurrent instability of PbS-sensitized TiO₂ electrodes in S^2- and SO₃ ^2- solution', Journal of Photochemistry and Photobiology A: Chemistry, vol. 143, no. 1, pp. 87-92.

Hong JS, Choi DS, Kang MG, Kim D, Kim KJ. Photocurrent instability of PbS-sensitized TiO₂ electrodes in S^2- and SO₃ ^2- solution. Journal of Photochemistry and Photobiology A: Chemistry. 2001 Oct 1;143(1):87-92.

Hong, Jin Sup ; Choi, Don Sung ; Kang, Man Gu ; Kim, Donghwan ; Kim, Kang Jin. / Photocurrent instability of PbS-sensitized TiO₂ electrodes in S^2- and SO₃ ^2- solution. In: Journal of Photochemistry and Photobiology A: Chemistry. 2001 ; Vol. 143, No. 1. pp. 87-92.

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