Laser & Optoelectronics Progress, Volume. 57, Issue 21, 212201(2020)
Quantum Conversion Efficiency Measurement of Organic-Inorganic Hybrid Perovskite Light-Emitting Diode Based on Integrating Sphere System
Organic-inorganic hybrid perovskite light-emitting diodes (PeLEDs) is a new type of light-emitting device, it have many advantages, including a wide range of raw material sources, simple device preparation, and high carrier mobility, making it one of the research hotspot in the field of displays and luminescence. Despite this, PeLEDs do have disadvantages, such as poor luminescence stability and small, uniform luminous areas, and there is no unified measurement method for testing PeLED quantum efficiency. In light of this, we propose a new type of PeLED quantum conversion efficiency measurement system. Using a small-sized integrating sphere combined with a spectrum measurement system to collect the PeLED light emission, the quantum conversion efficiency is determined. Standard GaN light-emitting diode data is used to calibrate the center wavelength, brightness, and radiance of the system. Finally, this system is used to measure the performance of actual PeLED devices. Experimental results show that the PeLED external quantum efficiency is the highest (0.089%) at a voltage of 3.2V, and the error determined from the reference did not exceed 6%.
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Li Wan, Feng Zhou, Su Hang, Zhang Lilai, Suo Xinlei, Li Guolong. Quantum Conversion Efficiency Measurement of Organic-Inorganic Hybrid Perovskite Light-Emitting Diode Based on Integrating Sphere System[J]. Laser & Optoelectronics Progress, 2020, 57(21): 212201
Category: Optical Design and Fabrication
Received: Feb. 1, 2020
Accepted: --
Published Online: Nov. 9, 2020
The Author Email: Guolong Li (iglo@163.com)