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Preparation of Organometal Halide Perovskite Photonic Crystal Films for Potential Optoelectronic Applications

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Schünemann,  Stephan
Research Group Tüysüz, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Chen,  Kun
Research Group Tüysüz, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Tüysüz,  Harun
Research Group Tüysüz, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Schünemann, S., Chen, K., Brittman, S., Garnett, E., & Tüysüz, H. (2016). Preparation of Organometal Halide Perovskite Photonic Crystal Films for Potential Optoelectronic Applications. ACS Applied Materials and Interfaces, 8(38), 25489-25495. doi:10.1021/acsami.6b09227.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-84C8-8
Abstract
Herein, a facile method for the preparation of organometal halide perovskite (OHP) thin films in photonic crystal morphology is presented. The OHP photonic crystal thin films with controllable porosity and thicknesses between 2 μm and 6 μm were prepared on glass, fluorine-doped tin oxide (FTO), and TiO2 substrates by using a colloidal crystal of polystyrene microspheres as a template to form an inverse opal structure. The composition of OHP could be straightforwardly tuned by varying the halide anions. The obtained OHP inverse opal films possess large ordered domains with a periodic change of the refractive index, which results in pronounced photonic stop bands in the visible light range. By changing the diameter of the polystyrene microspheres, the position of the photonic stop band can be tuned through the visible spectrum. This developed methodology can be used as blueprint for the synthesis of various OHP films that could eventually be used as more effective light harvesting materials for diverse applications.