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Multilayer light emitting devices with organometal halide perovskite: Polymer composite emission layer: The relationship of device performance with the compositions of emission layer and device configurations
Affiliation:1. SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 440-746, Republic of Korea;2. School of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea;3. Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, Republic of Korea;4. SKC Advanced Technology R&D Center, Suwon, Gyeonggi-do, 440-301, Republic of Korea;1. School of Electronic and Electrical Engineering, Sungkyunkwan University, Gyeonggi 16419, South Korea;2. Department of Electronic Engineering, Konkuk University, Seoul 143-701, South Korea;1. Plastic Electronics and Energy Laboratory (PEEL), Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India;2. Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305701, Republic of Korea;3. CSIR-National Physical Laboratory, New Delhi, 110012, India;1. Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan;2. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China;1. University of Pavia, Department of Physics and CNR-INFM ULTRAS, Via Bassi 6, 27100 Pavia, Italy;2. University of Bari, Department of Chemistry, Via Orabona 4, 70126 Bari, Italy;3. Institute of Chemistry of OrganoMetallic Compounds, ICCOM, Italian National Council of Research, CNR, Via Orabona, 4, 70125, Bari, Italy;4. University of Genova, Department of Chemistry and Industrial Chemistry, Via Dodecaneso 31, 16146 Genova, Italy
Abstract:The formation of composite layers comprising polymers such as poly(ethylene oxide) (PEO) and organometal halide perovskites (Peros) is an effective way to improve the morphology integrity of Pero films and the performance of Pero light emitting devices. Herein, we report the influences of the ratio of the organic content to inorganic content in the precursors as well as the compositions of PEO: Pero films on their morphology, crystal structure and electroluminescent property. Multilayer Pero light emitting devices show the external quantum efficiency of ca. 4.0% and power efficiency of 7.9 lm W−1.
Keywords:Organometal halide perovskites (Peros)  Light emitting devices  Polymer: Pero composites  Hole and electron transporting layers
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