Aluminum doped zinc oxide AZO was grown via magnetron sputtering as a low-cost alternative to indium tin oxide ITO for organic photovoltaics OPVs. Postdeposition ozone treatment resulted in devices with lower series resistance, increased open-circuit voltage, and power conversion efficiency double that of devices fabricated on untreated AZO. Furthermore, cells fabricated using ozone treated AZO and standard ITO displayed comparable performance.
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Murdoch et al. (2009) studied this question.
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