Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene Solution
Electric devices have evolved to become smaller, more multifunctional, and increasingly integrated. When the total volume of a device is reduced, insufficient heat dissipation may result in device failure. A microfluidic channel with a graphene solution may replace solid conductors for simultaneousl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/7/1719 |
| _version_ | 1797528364826755072 |
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| author | Yung-Chiang Chung Han-Hsuan Chung Shih-Hao Lin |
| author_facet | Yung-Chiang Chung Han-Hsuan Chung Shih-Hao Lin |
| author_sort | Yung-Chiang Chung |
| collection | DOAJ |
| description | Electric devices have evolved to become smaller, more multifunctional, and increasingly integrated. When the total volume of a device is reduced, insufficient heat dissipation may result in device failure. A microfluidic channel with a graphene solution may replace solid conductors for simultaneously supplying energy and dissipating heat in a light emitting diode (LED). In this study, an automated recycling system using a graphene solution was designed that reduces the necessity of manual operation. The optical power and temperature of an LED using this system was measured for an extended period and compared with the performance of a solid conductor. The temperature difference of the LED bottom using the solid and liquid conductors reached 25 °C. The optical power of the LED using the liquid conductor was higher than that of the solid conductor after 120 min of LED operation. When the flow rate was increased, the temperature difference of the LED bottom between initial and 480 min was lower, and the optical power of the LED was higher. This result was attributable to the higher temperature of the LED with the solid conductor. Moreover, the optical/electric power transfer rate of the liquid conductor was higher than that of the solid conductor after 120 min of LED operation, and the difference increased over time. |
| first_indexed | 2024-03-10T09:57:13Z |
| format | Article |
| id | doaj.art-f15263c6422f4205952eeb13aa1414bb |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T09:57:13Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-f15263c6422f4205952eeb13aa1414bb2023-11-22T02:15:06ZengMDPI AGNanomaterials2079-49912021-06-01117171910.3390/nano11071719Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene SolutionYung-Chiang Chung0Han-Hsuan Chung1Shih-Hao Lin2Department of Mechanical Engineering, Ming Chi University of Technology, New Taipei 24301, TaiwanDepartment of Mechanical Engineering, Ming Chi University of Technology, New Taipei 24301, TaiwanDepartment of Mechanical Engineering, Ming Chi University of Technology, New Taipei 24301, TaiwanElectric devices have evolved to become smaller, more multifunctional, and increasingly integrated. When the total volume of a device is reduced, insufficient heat dissipation may result in device failure. A microfluidic channel with a graphene solution may replace solid conductors for simultaneously supplying energy and dissipating heat in a light emitting diode (LED). In this study, an automated recycling system using a graphene solution was designed that reduces the necessity of manual operation. The optical power and temperature of an LED using this system was measured for an extended period and compared with the performance of a solid conductor. The temperature difference of the LED bottom using the solid and liquid conductors reached 25 °C. The optical power of the LED using the liquid conductor was higher than that of the solid conductor after 120 min of LED operation. When the flow rate was increased, the temperature difference of the LED bottom between initial and 480 min was lower, and the optical power of the LED was higher. This result was attributable to the higher temperature of the LED with the solid conductor. Moreover, the optical/electric power transfer rate of the liquid conductor was higher than that of the solid conductor after 120 min of LED operation, and the difference increased over time.https://www.mdpi.com/2079-4991/11/7/1719liquid conductorgraphene solutioncirculating systemmicrofluidic channeltemperatureoptical power |
| spellingShingle | Yung-Chiang Chung Han-Hsuan Chung Shih-Hao Lin Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene Solution Nanomaterials liquid conductor graphene solution circulating system microfluidic channel temperature optical power |
| title | Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene Solution |
| title_full | Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene Solution |
| title_fullStr | Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene Solution |
| title_full_unstemmed | Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene Solution |
| title_short | Improvement of Temperature and Optical Power of an LED by Using Microfluidic Circulating System of Graphene Solution |
| title_sort | improvement of temperature and optical power of an led by using microfluidic circulating system of graphene solution |
| topic | liquid conductor graphene solution circulating system microfluidic channel temperature optical power |
| url | https://www.mdpi.com/2079-4991/11/7/1719 |
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