Efficient single-layer light-emitting diodes based on organic–inorganic lead halide perovskite and tuning luminescence properties
Abstract Because of the interesting features of the organic/inorganic halide perovskite (e.g., CH3NH3PbX 3, X = Cl, Br) materials, such as long electron–hole diffusion length, high absorption coefficient and adjustable band gap, they have attracted a great deal of attention. In this research, CH3NH3...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Oxford International Collaboration Centre Press (OICC press)
2019-05-01
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| Series: | Journal of Theoretical and Applied Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40094-019-0330-7 |
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| Summary: | Abstract Because of the interesting features of the organic/inorganic halide perovskite (e.g., CH3NH3PbX 3, X = Cl, Br) materials, such as long electron–hole diffusion length, high absorption coefficient and adjustable band gap, they have attracted a great deal of attention. In this research, CH3NH3PbX 3 (X = Br, Cl) are synthesized and perovskite-based single-layer and perovskite-based bilayer diodes are fabricated. Using electron beam deposition technique, thin films of CH3NH3PbX 3 (X = Br, Cl) hybrids with excellent homogeneity are manufactured. Absorption spectrum, X-ray spectrum and photoluminescence spectrum of organic/inorganic halide perovskites along with electroluminescence spectra, SEM micrographs and current–voltage characteristic of perovskite-based light-emitting diodes are investigated. Perovskite-based bilayer diodes are evaluated for the first time. The difference between the emission wavelengths of single-layer and bilayer diodes is the main characteristic of bilayer diodes. |
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| ISSN: | 2251-7227 2251-7235 |