Open AccessDesign and application of an LED using a liquid conductor for dissipating heat and conducting electricity
Author(s) -
Chung YungChiang,
Zheng GuangJun,
Xu YaoDe,
Lin ChengFeng
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2017.0178
Subject(s) - materials science , conductor , electrolyte , electrical conductor , optoelectronics , sodium bicarbonate , light emitting diode , electricity , electrical engineering , composite material , chemistry , engineering , electrode
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.