Design and application of an LED using a liquid conductor for dissipating heat and conducting electricity

Micro & nano letters

article

Yung-Chiang Chung¹  Guang-Jun Zheng¹  Yao-De Xu¹  Cheng-Feng Lin¹ 

[1] Department of Mechanical Engineering, Ming Chi University of Technology

关键词: light emitting diodes;    electrolytes;    cooling;    electrical resistivity;    electric resistance;    microchannel flow;    integrated optoelectronics;    sodium compounds;    liquid conductor;    power consumption;    electric products;    solid conducting wire;    microfluidic channel;    electrolyte;    light-emitting diode;    sodium bicarbonate;    measured optical power;    electricity conductivity;    electric resistance;    heat dissipation;    LED temperature;    optical power;    salt;    citric acid;    NaCl;   

DOI  :  10.1049/mnl.2017.0178

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Recently, the study of power consumption and heat dissipation has attracted considerable research interest due to the development of various electric products. In this research, the authors replaced the solid conducting wire with a microfluidic channel and an electrolyte to conduct electricity and dissipate heat in a light-emitting diode (LED). The optical power and temperature of the LED using three electrolytes including salt (NaCl), sodium bicarbonate, and citric acid were measured. The measured optical power was the highest when NaCl was used as the electrolyte. The temperatures of the LED and at the bottom of the microfluidic channel were much lower when a liquid conductor was used as compared to when a solid conducting wire was used. The optical power of the LED obtained using a solid conducting wire was higher than that obtained using a liquid conductor. The temperature decreased and optical power increased with increasing flow rate. They hypothesised that a liquid conductor with a lower electric resistance would improve the optical power of the LED.

【 授权许可】

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