Investigation of Remote-Phosphor White Light-Emitting Diodes with Multi-Phosphor Layers
نویسندگان
چکیده
منابع مشابه
Phosphor-Free InGaN White Light Emitting Diodes Using Flip-Chip Technology
Monolithic phosphor-free two-color gallium nitride (GaN)-based white light emitting diodes (LED) have the potential to replace current phosphor-based GaN white LEDs due to their low cost and long life cycle. Unfortunately, the growth of high indium content indium gallium nitride (InGaN)/GaN quantum dot and reported LED's color rendering index (CRI) are still problematic. Here, we use flip-chip ...
متن کاملPatterned structure of remote phosphor for phosphor-converted white LEDs.
High efficiency white light-emitting diodes with superior color-mixing have been investigated. It is suggested that the patterned remote phosphor structure could improve the uniformity of angular-dependent correlated color temperature (CCT) and achieve high chromatic stability in wider operating current range, as compared to the conventional remote phosphor coating structure. In this experiment...
متن کاملStrongly Enhanced Phosphor Efficiency in GaInN White Light-Emitting Diodes Using Remote Phosphor Configuration and Diffuse Reflector Cup
Jong Kyu KIM, Hong LUO, Eric Fred SCHUBERT , Jaehee CHO, Cheolsoo SONE and Yongjo PARK Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A. Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A. Photonics Program Team, Samsung Advanced Institute of Technology, Suwon 440-600,...
متن کاملToward scatter-free phosphors in white phosphor-converted light-emitting diodes
Scatter-free phosphors promise to suppress the scattering loss of conventional micro-size powder phosphors in white phosphor-converted light-emitting diodes (pc-LEDs). Large micro-size cube phosphors (~100 μm) are newly designed and prepared as scatter-free phosphors, combining the two scatter-free conditions of particles based on Mie's scattering theory; the grain size or grain boundary was sm...
متن کاملImprovement of lumen efficiency in white light-emitting diodes with air-gap embedded package
0026-2714/$ see front matter Crown Copyright 2 http://dx.doi.org/10.1016/j.microrel.2012.02.011 ⇑ Corresponding author. Tel.: +886 3 571 2121x319 E-mail address: [email protected] (H.C. K In this paper, white light-emitting diodes (LEDs) with air-gap embedded package were proposed and fabricated by a simple method including pulsed spray coating. The lumen efficiency of air-gap embedded ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2010