OXIDE ABSORBER MATERIALS FOR ALL-OXIDE PHOTOVOLTAICS

Koushik Majhi Adam Ginsburg David A. Keller Hannah-Noa Barad Kevin J. Rietwyk Zhi Yan Assaf Y. Anderson Arie Zaban
Chemistry, Bar-Ilan University, Ramat-Gan

Combinatorial synthesis in conjunction with high-throughput (HT) methods have been developed to synthesize novel thin-film absorber materials for low cost all oxide photovoltaics.1 Most metal oxides (MOs) have a bandgap in the UV part of the solar spectrum and it is the aim of the project to synthesize and identify novel multi-component MOs with a band gap at lower energies. Continuous compositional spreads of metal oxides were synthesized via pulsed laser deposition (PLD) and high throughput techniques were used to study optical structural, optical and electrical properties as a function of composition. The optical transmission spectra of mixed multi-component metal oxides show enhanced light absorption in the visible range. The crystal structure as a function of composition was characterized using scanning XRD and Raman spectroscopy. Application of such light absorbers in PV devices show improved performance compared to the pure metal oxide components of the absorber.

References:

  1. Rühle, S.; Anderson, A. Y.; Barad, H.-N.; Kupfer, B.; Bouhadana, Y.; Rosh-Hodesh, E.; Zaban, A. All-Oxide Photovoltaics. Phys. Chem. Lett. 2012,3, 3755–3764









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