The Study on Quantum Dots Layers to Emit White Light Based on Ultraviolet Diode

• Main Authors: Huan-Shuan Chu, 朱峘瑄
• Other Authors: 陳建銘
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/73e8xz

碩士 === 國立臺北科技大學 === 光電工程系研究所 === 102 === QDs white light emitting diodes was produced by coated QDs polymer on the ultraviolet LED. At first, we used stratified structure method. Each layer emitted one wavelength. There were four kinds of QDs, and coated seven QDs-polymer layers. The result of this QDs WLED showed a warm white light with CIE-1931 coordinates of (0.3891, 0.3847), a CRI of 68.44, and a Tc of 3832.78K at an input voltage 10 V and current 500 mA. The second, we mixed four kinds of QDs-polymer together, and coated one layer on the ultraviolet LED. Under the same measurement conditions, showed a warm white light with CIE-1931 coordinates of (0.3923, 0.3871), a CRI of 61.55, and a Tc of 3773.86 K. The study show that QDs WLED were successfully produced two similar results by seven QDs-polymer layers and one mixed layers methods.