In order to investigating the effect of heat on quantum dots(QDs)-converted light-emitting diodes(LEDs) and pursuing the excellent performance of QDs-converted LEDs

Quantum dots-mesoporous silica(QDMS) was prepared to mix with phosphor and silica resin

which was packaged onto a blue chip

forming a new type of QDs-converted LED. The light conversion efficiency(LCE) and color rendering index(CRI) of the new QDs-converted LED and traditional phosphor-converted LED were respectively measured and compared. The impact of changing current on the performance of the new type of LED was explored. Finally

the light power of the new type of LED before and after solidification were measured

which was solidified respectively in 100℃ and 60℃. Results suggested that the LCE of the new type of LED reached 110 lm·W-1

improved by about 56% relative to phosphor-converted LED

CRI attained 96(maximum is 100) and remained above 92 driven by current varing from 20 to 400 mA

which demonstrated that the new type of QDs-converted LED possess obvious advantages compared to the traditional phosphor-converted LED. The decline of the LCE and CRI through solidification of the new type of LED solidified under 60℃ were approximately half of that under 100℃

which revealed that heat transfer must be considered carefully during the fabrication of QDs-converted LED.