Multi-color emission based on InGaN/GaN micro-truncated pyramid arrays
Source abstract
Abstract
3D micro-nano devices are expected to become the mainstay of multi-color solid-state lighting in the future because of their broad-band characteristic and the advantage of integrating the monolithic light-emitting diode on a single chip. In this work, InGaN/GaN micro-truncated pyramid arrays with six equivalent (101̄1) semi-polar facets and one (0001) polar facet were successfully prepared by the metal-organic chemical vapor deposition technology. The average diameter of the obtained uniform micro-truncated pyramids was 6.8 µm with a height of 2.4 µm. According to the results of micro-photoluminescence performed, the InGaN/GaN micro-truncated pyramid arrays can achieve multi-color emission from blue to red. The luminescent positions corresponding to different wavelengths were detected by the cathode luminescence spectrum. The multi-color emission was related to the quantum hybrid structures apart from the discrepancy of In composition in different positions. The developed microstructure can create multi-color emission by combining distinct luminescence modes, which can aid in the design of future optoelectronic devices.
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Research context
OpenAlex topics: GaN-based semiconductor devices and materials · ZnO doping and properties · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology 1 , Taiyuan, Shanxi 030024, China
Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering 2 , Taiyuan, Shanxi 030032, China
East China Institute of Photo Electron IC 3 , Bengbu 233030, China
Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology 4 , Xi’an, Shaanxi 710021, China
Funding
Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering · Shanxi Provincial Key Research and Development Project · Natural Science Foundation of Shanxi Province
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