Photoelectrical properties of In(OH)xSy/PbS(O) structures deposited by SILAR on TiO2

I. Oja, Abdelhak Belaidi, L. Dloczik, M. Ch Lux-Steiner, Th Dittrich

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Photoelectrical properties of uncoated In(OH)xSy and PbS(O) layers deposited by SILAR (successive ion layer adsorption reaction) and of TiO2/In(OH)xSy/PbS(O)/PEDOT:PSS solar cell structures were investigated by spectral surface photovoltage, Kelvin-probe, current-voltage and quantum efficiency analysis. By changing the annealing temperature of In(OH)xSy in air between 50 and 350 °C, the band gap of In(OH)xSy was tuned between 2.6 and 2 eV while the band gap of PbS(O) remained unchanged at about 0.7 eV. The open circuit voltage of the solar cell structures correlated well with the band gap and the workfunction of the In(OH)xSy. Surprisingly, excess charge carriers generated in the PbS(O) layer do not contribute significantly to the short circuit current. A short circuit current of more than 10 mA cm-2 was reached by modifying TiO2 with Nb. Possible ways of optimization are discussed.

Original languageEnglish
Pages (from-to)520-526
Number of pages7
JournalSemiconductor Science and Technology
Volume21
Issue number4
DOIs
Publication statusPublished - 1 Apr 2006
Externally publishedYes

Fingerprint

Energy gap
Ions
short circuit currents
Adsorption
Short circuit currents
adsorption
Solar cells
solar cells
ions
photovoltages
Open circuit voltage
open circuit voltage
Charge carriers
Quantum efficiency
quantum efficiency
charge carriers
Annealing
optimization
annealing
probes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Photoelectrical properties of In(OH)xSy/PbS(O) structures deposited by SILAR on TiO2 . / Oja, I.; Belaidi, Abdelhak; Dloczik, L.; Lux-Steiner, M. Ch; Dittrich, Th.

In: Semiconductor Science and Technology, Vol. 21, No. 4, 01.04.2006, p. 520-526.

Research output: Contribution to journalArticle

Oja, I. ; Belaidi, Abdelhak ; Dloczik, L. ; Lux-Steiner, M. Ch ; Dittrich, Th. / Photoelectrical properties of In(OH)xSy/PbS(O) structures deposited by SILAR on TiO2 In: Semiconductor Science and Technology. 2006 ; Vol. 21, No. 4. pp. 520-526.
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