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Results and discussion
Ni/Au film&mesh Intensity in 470nm
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Working image
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Ni/Au film&mesh Light Transmittance in 470nm
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Current-Luminescence
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Current-Output Power
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Comparative data of LEDs with Ni/Au film and Ni/Au
mesh p-contacts
Ni/Au
mesh
Ni/Au
Light
Output Forward
transmittance power voltage
series
resistance
95%
11.3mW 3.8V
195Ω
72%
8.12mW 3V
150Ω
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Conclusion
Ni/Au mesh p-contact is a promising way to improve
the output power. Further researches about an
optimum dimension and shape of apertures of the
mesh are expected to reduce the forward voltage.
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References
Shui-Hsiang Su , Cheng-Chieh Hou , Meiso Yokoyama,
Shi-Ming Chen,” InGaN/GaN light emitting diodes with
Ni/Au mesh p-contacts”, Received 12 January 2005;
received in revised form 21 September 2005; accepted
30 September 2005 Available online 15 November 2005
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