Design rules for white light emitters with high light extraction efficiency

被引：12

作者：

Zhu, Peifen ^{[1
]}

Zhu, Hongyang ^{[1
]}

Thapa, Saroj ^{[1
]}

Adhikari, Gopi C. ^{[1
]}

机构：

[1] Univ Tulsa, Dept Phys & Engn Phys, Tulsa, OK 74104 USA

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 16期

关键词：

EMITTING-DIODES; MICROLENS ARRAYS; ENHANCEMENT; MICROCAVITY; IMPROVEMENT; DEVICES; IMPACT; TOP; DEPENDENCE; EMISSION;

D O I：

10.1364/OE.27.0A1297

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The finite-difference time-domain method is employed to study the light extraction efficiency of white light emitters. The cone arrays designed on top of white light emitters eliminate the dependency of light extraction on the wavelength and the cavity thickness and that leads to significant enhancement in light extraction efficiency for whole visible light spectrum. The light extraction efficiency of 81% has been achieved. Most importantly, the high extraction efficiency is achieved for the whole visible spectrum from 400 nm to 700 nm. This work will provide guidelines for designing highly efficient white light emitters for general illumination and display purpose. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：A1297 / A1307

页数：11

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