Preparation of ZnO/organic/ZnO “sandwich” semiconductor hybrid structures by molecular beam epitaxy is reported. Overgrowth of the organic layer becomes possible because ZnO epitaxy requires exceptionally low substrate temperatures. The molecule, a spirobifluorene derivative, withstands ZnO overgrowth without degradation of its optical properties. Excitonic coupling as well as optical gain in ZnO/organic/ZnO sandwich hybrid structures are demonstrated.
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Blumstengel et al. (2009) studied this question.
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