{"title":"静电纺丝法增强发光二极管用qds聚合物薄膜的导热性","authors":"Xiang Lei, Huai Zheng, Xing Guo, Zefeng Zhang, Jiading Wu, Chunlin Xu, Sheng Liu","doi":"10.1109/ICEPT.2016.7583296","DOIUrl":null,"url":null,"abstract":"Quantum dots (QDs) have been developed as a promising light-converting material for light-emitting diodes (LEDs). However, QDs-polymer film always shows bad thermal performance. In this paper, a new designed structure of QDs-polymer film via electrospinning was proposed to enhance the thermal conductivity of the QDs-polymer film. After the measurement of density, specific heat and thermal diffusivity, the thermal conductivities of the proposed and traditional QDs-polymer films were calculated and compared. Finite-element simulation was conducted to assess the working temperature when both kinds of QDs-polymer films were packaged in the remote QD-LEDs. Results show that the thermal conductivities in thickness direction and in plane have been enhanced by 64.6% and 423.1% at 25 °C. The highest temperature in QDs-polymer film is decreased from 92.9 °C to 88.0 °C at the driving current of 300 mA.","PeriodicalId":6881,"journal":{"name":"2016 17th International Conference on Electronic Packaging Technology (ICEPT)","volume":"13 1","pages":"1000-1003"},"PeriodicalIF":0.0000,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Enhanced thermal conductivity of QDs-polymer film for light-emitting diodes via electrospinning\",\"authors\":\"Xiang Lei, Huai Zheng, Xing Guo, Zefeng Zhang, Jiading Wu, Chunlin Xu, Sheng Liu\",\"doi\":\"10.1109/ICEPT.2016.7583296\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Quantum dots (QDs) have been developed as a promising light-converting material for light-emitting diodes (LEDs). However, QDs-polymer film always shows bad thermal performance. In this paper, a new designed structure of QDs-polymer film via electrospinning was proposed to enhance the thermal conductivity of the QDs-polymer film. After the measurement of density, specific heat and thermal diffusivity, the thermal conductivities of the proposed and traditional QDs-polymer films were calculated and compared. Finite-element simulation was conducted to assess the working temperature when both kinds of QDs-polymer films were packaged in the remote QD-LEDs. Results show that the thermal conductivities in thickness direction and in plane have been enhanced by 64.6% and 423.1% at 25 °C. The highest temperature in QDs-polymer film is decreased from 92.9 °C to 88.0 °C at the driving current of 300 mA.\",\"PeriodicalId\":6881,\"journal\":{\"name\":\"2016 17th International Conference on Electronic Packaging Technology (ICEPT)\",\"volume\":\"13 1\",\"pages\":\"1000-1003\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 17th International Conference on Electronic Packaging Technology (ICEPT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICEPT.2016.7583296\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 17th International Conference on Electronic Packaging Technology (ICEPT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEPT.2016.7583296","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Enhanced thermal conductivity of QDs-polymer film for light-emitting diodes via electrospinning
Quantum dots (QDs) have been developed as a promising light-converting material for light-emitting diodes (LEDs). However, QDs-polymer film always shows bad thermal performance. In this paper, a new designed structure of QDs-polymer film via electrospinning was proposed to enhance the thermal conductivity of the QDs-polymer film. After the measurement of density, specific heat and thermal diffusivity, the thermal conductivities of the proposed and traditional QDs-polymer films were calculated and compared. Finite-element simulation was conducted to assess the working temperature when both kinds of QDs-polymer films were packaged in the remote QD-LEDs. Results show that the thermal conductivities in thickness direction and in plane have been enhanced by 64.6% and 423.1% at 25 °C. The highest temperature in QDs-polymer film is decreased from 92.9 °C to 88.0 °C at the driving current of 300 mA.
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