Electrical and optical properties of yttrium-doped zinc oxide by spray pyrolysis for solar cell applications

Kunhee Han, Lilly Q. Guo, Nigel D. Shepherd, Meng Tao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A low-cost transparent conducting oxide (TCO) suitable for terawatt-scale solar cells is reported. The zinc oxide TCO is prepared by spray pyrolysis deposition and is doped with an abundant group IIIB element, yttrium (ZnO:Y). The deposition was carried out at 475°C on quartz substrate. The dependence of the electrical, structural and optical properties of ZnO:Y on deposition and post-annealing conditions was investigated. The important variables for low-resistivity ZnO:Y include Y concentration in the spray solution, post-annealing ambient and type of solvent. The lowest resistivity obtained so far is 1.14×10 -2 Ω-cm for a ZnO:Y film deposited from a solution containing 100 mM Zn precursor, 0.4 mM Y precursor, methanol as the solvent, and post-annealed in vacuum at 500°C for 60 minutes. The transmittance of ZnO:Y is high above 85% in the visible range. The Zn/O ratio in ZnO:Y and its correlation to the resistivity of ZnO:Y suggest that Zn interstitials and O vacancies play a significant role in controlling the electrical properties of ZnO:Y.

Original languageEnglish (US)
Title of host publicationConference Record of the IEEE Photovoltaic Specialists Conference
Pages1275-1279
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: Jun 19 2011Jun 24 2011

Other

Other37th IEEE Photovoltaic Specialists Conference, PVSC 2011
CountryUnited States
CitySeattle, WA
Period6/19/116/24/11

Fingerprint

Spray pyrolysis
Yttrium
Zinc oxide
Solar cells
Electric properties
Optical properties
Annealing
Oxides
Vacancies
Structural properties
Quartz
Methanol
Vacuum
Substrates
Costs

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Han, K., Guo, L. Q., Shepherd, N. D., & Tao, M. (2011). Electrical and optical properties of yttrium-doped zinc oxide by spray pyrolysis for solar cell applications. In Conference Record of the IEEE Photovoltaic Specialists Conference (pp. 1275-1279). [6186190] https://doi.org/10.1109/PVSC.2011.6186190

Electrical and optical properties of yttrium-doped zinc oxide by spray pyrolysis for solar cell applications. / Han, Kunhee; Guo, Lilly Q.; Shepherd, Nigel D.; Tao, Meng.

Conference Record of the IEEE Photovoltaic Specialists Conference. 2011. p. 1275-1279 6186190.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Han, K, Guo, LQ, Shepherd, ND & Tao, M 2011, Electrical and optical properties of yttrium-doped zinc oxide by spray pyrolysis for solar cell applications. in Conference Record of the IEEE Photovoltaic Specialists Conference., 6186190, pp. 1275-1279, 37th IEEE Photovoltaic Specialists Conference, PVSC 2011, Seattle, WA, United States, 6/19/11. https://doi.org/10.1109/PVSC.2011.6186190
Han K, Guo LQ, Shepherd ND, Tao M. Electrical and optical properties of yttrium-doped zinc oxide by spray pyrolysis for solar cell applications. In Conference Record of the IEEE Photovoltaic Specialists Conference. 2011. p. 1275-1279. 6186190 https://doi.org/10.1109/PVSC.2011.6186190
Han, Kunhee ; Guo, Lilly Q. ; Shepherd, Nigel D. ; Tao, Meng. / Electrical and optical properties of yttrium-doped zinc oxide by spray pyrolysis for solar cell applications. Conference Record of the IEEE Photovoltaic Specialists Conference. 2011. pp. 1275-1279
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