Hybridization-Induced Carrier Localization at the C60 /ZnO Interface.

Kelly, Leah L; Racke, David A; Kim, Hyungchul; Ndione, Paul; Sigdel, Ajaya K; Berry, Joseph J; Graham, Samuel; Nordlund, Dennis et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

Electronic coupling and ground-state charge transfer at the C60 /ZnO hybrid interface is shown to localize carriers in the C60 phase. This effect, revealed by resonant X-ray photoemission, arises from interfacial hybridization between C60 and ZnO. Such localization at carrier-selective electrodes and interlayers may lead to severely reduced carrier harvesting efficiencies and increased recombination rates in organic electronic devices.