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2 results on '"Enqing Guo"'

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

Author

Qinjin Wang, Jun Ma, Teng Zhan, Liancheng Wang, Enqing Guo, Zhiqiang Liu, Xiaoyan Yi, Junxi Wang, Guohong Wang, and Jinmin Li

Subjects
GaN, vertical light-emitting diodes (VLEDs), electroless silver plating (ESP), electron beam (EB) deposition, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

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 lower contact resistivity of 6 * 10-3 Ω · cm2 with p-GaN, compared with that fabricated through the conventional electron beam (EB) approach, which shows a reflectance of 75% and a contact resistivity of 6.2 * 10-2 Ω · cm2, 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-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.

Published
2016
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2. Electroless Silver Plating Reflectors to Boost the Performance of Vertical Light-Emitting Diodes

Author

Guohong Wang, Zhiqiang Liu, Xiaoyan Yi, Liancheng Wang, Teng Zhan, Junxi Wang, Qinjin Wang, Jun Ma, Enqing Guo, and Jinmin Li

Subjects
lcsh:Applied optics. Photonics, Materials science, Fabrication, Gallium nitride, Reflector (antenna), 02 engineering and technology, 01 natural sciences, GaN, law.invention, chemistry.chemical_compound, Optics, law, Electrical resistivity and conductivity, Plating, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, lcsh:QC350-467, electron beam (EB) deposition, Electrical and Electronic Engineering, Diode, 010302 applied physics, business.industry, vertical light-emitting diodes (VLEDs), lcsh:TA1501-1820, 020206 networking & telecommunications, Atomic and Molecular Physics, and Optics, electroless silver plating (ESP), chemistry, Electrode, Optoelectronics, business, lcsh:Optics. Light, Light-emitting diode
Abstract

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 lower contact resistivity of 6 * 10-3 Ω · cm2 with p-GaN, compared with that fabricated through the conventional electron beam (EB) approach, which shows a reflectance of 75% and a contact resistivity of 6.2 * 10-2 Ω · cm2, 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-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.

Published
2016

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