Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes

In this paper, we experimentally demonstrated a novel approach known as electroless silver plating (ESP) for the fabrication of Ag-only reflectors on vertical light-emitting diodes (VLEDs). The Ag reflector that was obtained through the ESP approach shows a higher reflectance of 83% and a...

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Main Authors: Qinjin Wang, Jun Ma, Teng Zhan, Liancheng Wang, Enqing Guo, Zhiqiang Liu, Xiaoyan Yi, Junxi Wang, Guohong Wang, Jinmin Li
Format: Article
Language:English
Published: IEEE 2016-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/7491218/
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author Qinjin Wang
Jun Ma
Teng Zhan
Liancheng Wang
Enqing Guo
Zhiqiang Liu
Xiaoyan Yi
Junxi Wang
Guohong Wang
Jinmin Li
author_facet Qinjin Wang
Jun Ma
Teng Zhan
Liancheng Wang
Enqing Guo
Zhiqiang Liu
Xiaoyan Yi
Junxi Wang
Guohong Wang
Jinmin Li
author_sort Qinjin Wang
collection DOAJ
description In this paper, we experimentally demonstrated a novel approach known as electroless silver plating (ESP) for the fabrication of Ag-only reflectors on vertical light-emitting diodes (VLEDs). The Ag reflector that was obtained through the ESP approach shows a higher reflectance of 83&#x0025; and a lower contact resistivity of <inline-formula> <tex-math notation="LaTeX">$6\ast 10^{-3}\ \Omega\cdot\text{cm}^{2}$</tex-math></inline-formula> with p-GaN, compared with that fabricated through the conventional electron beam (EB) approach, which shows a reflectance of 75&#x0025; and a contact resistivity of <inline-formula> <tex-math notation="LaTeX">$6.2\ast 10^{-2}\ \Omega\cdot\text{cm}^{2}$</tex-math></inline-formula>, respectively. Improvements in the light output intensity-current (L-I) and current-voltage (I-V) results in VLEDs, which originated from the high reflectance and low-contact resistivity of the incorporated ESP&#x2013;Ag reflector. Our result opens up an alternative and promising way to substitute the traditional EB approach for Ag-based reflector fabrication and, thus, is practically meaningful in real device fabrication, such as with VLEDs.
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institution Kabale University
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spelling doaj-art-b2e8a24dd12f4f9ebb7f6c25aae052472025-08-20T03:31:23ZengIEEEIEEE Photonics Journal1943-06552016-01-01841810.1109/JPHOT.2016.25809387491218Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting DiodesQinjin Wang0Jun Ma1Teng Zhan2Liancheng Wang3Enqing Guo4Zhiqiang Liu5Xiaoyan Yi6Junxi Wang7Guohong Wang8Jinmin Li9Research and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaResearch and Development Center for Semiconductor Lighting, State Key Laboratory of Solid State Lighting, Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaIn this paper, we experimentally demonstrated a novel approach known as electroless silver plating (ESP) for the fabrication of Ag-only reflectors on vertical light-emitting diodes (VLEDs). The Ag reflector that was obtained through the ESP approach shows a higher reflectance of 83&#x0025; and a lower contact resistivity of <inline-formula> <tex-math notation="LaTeX">$6\ast 10^{-3}\ \Omega\cdot\text{cm}^{2}$</tex-math></inline-formula> with p-GaN, compared with that fabricated through the conventional electron beam (EB) approach, which shows a reflectance of 75&#x0025; and a contact resistivity of <inline-formula> <tex-math notation="LaTeX">$6.2\ast 10^{-2}\ \Omega\cdot\text{cm}^{2}$</tex-math></inline-formula>, respectively. Improvements in the light output intensity-current (L-I) and current-voltage (I-V) results in VLEDs, which originated from the high reflectance and low-contact resistivity of the incorporated ESP&#x2013;Ag reflector. Our result opens up an alternative and promising way to substitute the traditional EB approach for Ag-based reflector fabrication and, thus, is practically meaningful in real device fabrication, such as with VLEDs.https://ieeexplore.ieee.org/document/7491218/GaNvertical light-emitting diodes (VLEDs)electroless silver plating (ESP)electron beam (EB) deposition
spellingShingle Qinjin Wang
Jun Ma
Teng Zhan
Liancheng Wang
Enqing Guo
Zhiqiang Liu
Xiaoyan Yi
Junxi Wang
Guohong Wang
Jinmin Li
Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes
IEEE Photonics Journal
GaN
vertical light-emitting diodes (VLEDs)
electroless silver plating (ESP)
electron beam (EB) deposition
title Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes
title_full Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes
title_fullStr Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes
title_full_unstemmed Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes
title_short Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes
title_sort electroless silver plating reflectors to boost the performance of vertical light emitting diodes
topic GaN
vertical light-emitting diodes (VLEDs)
electroless silver plating (ESP)
electron beam (EB) deposition
url https://ieeexplore.ieee.org/document/7491218/
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