Efficiency enhancement of InGaN amber MQWs using nanopillar structures

Authors :: Ou, Yiyu
Iida, Daisuke
Liu, Jin
Wu, Kaiyu
Ohkawa, Kazuhiro
Boisen, Anja
Petersen, Paul Michael
Ou, Haiyan
Ou, Yiyu
Iida, Daisuke
Liu, Jin
Wu, Kaiyu
Ohkawa, Kazuhiro
Boisen, Anja
Petersen, Paul Michael
Ou, Haiyan
Source :: Ou , Y , Iida , D , Liu , J , Wu , K , Ohkawa , K , Boisen , A , Petersen , P M & Ou , H 2018 , ' Efficiency enhancement of InGaN amber MQWs using nanopillar structures ' , Nanophotonics , vol. 7 , no. 1 , pp. 317-322 .
Publication Year :: 2018
Abstract: We have investigated the use of nanopillar structures on high indium content InGaN amber multiple quantum well (MQW) samples to enhance the emission efficiency. A significant emission enhancement was observed which can be attributed to the enhancement of internal quantum efficiency and light extraction efficiency. The size-dependent strain relaxation effect was characterized by photoluminescence, Raman spectroscopy and time-resolved photoluminescence measurements. In addition, the light extraction efficiency of different MQW samples was studied by finite-different time-domain simulations. Compared to the as-grown sample, the nanopillar amber MQW sample with a diameter of 300 nm has demonstrated an emission enhancement by a factor of 23.8.

Database :: OAIster
Journal :: Ou , Y , Iida , D , Liu , J , Wu , K , Ohkawa , K , Boisen , A , Petersen , P M & Ou , H 2018 , ' Efficiency enhancement of InGaN amber MQWs using nanopillar structures ' , Nanophotonics , vol. 7 , no. 1 , pp. 317-322 .
Notes :: application/pdf, English
Publication Type :: Electronic Resource
Accession number :: edsoai.on1020644407
Document Type :: Electronic Resource