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Nitride-Rich Hexagonal GaNP Growth Using Metalorganic Chemical Vapor Deposition

Published online by Cambridge University Press:  17 March 2011

Seikoh Yoshida ,
Yoshiteru Itoh  and
Junjiroh Kikawa
Seikoh Yoshida
Affiliation:
Yokohama R&D Laboratories, The Furukawa Electric Co., Ltd. 2-4-3 Okano, Nishi-ku, Yokohama, 220-0073, Japan
Yoshiteru Itoh
Affiliation:
Yokohama R&D Laboratories, The Furukawa Electric Co., Ltd. 2-4-3 Okano, Nishi-ku, Yokohama, 220-0073, Japan
Junjiroh Kikawa
Affiliation:
Yokohama R&D Laboratories, The Furukawa Electric Co., Ltd. 2-4-3 Okano, Nishi-ku, Yokohama, 220-0073, Japan
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Abstract

The growth of GaNP using laser-assisted metalorganic chemical vapor deposition (LA-MOCVD) was carried out for the fabrication of a light-emitting diode (LED). We used an Ar-F laser in order to decompose the source gases at lower temperatures. Trimethylgallium (TMG), ammonia (NH3) and tertialybuthylphosphine (TBP) were used for the growth. GaNP growth was carried out at different temperatures. After that, annealing was carried out at 1273-1373 K to improve the crystal quality.

As a result, N-rich GaNP could be grown at 1123-1223 K. The surface morphologies of GaNP were improved when the growth temperature was increased to above 1173 K. We investigated the photoluminescence (PL) of GaNP. The band-edge emission of GaNP was observed at 77 K upon applying thermal annealing at 1323 K. This peak shifted to about 0.2 eV compared with the GaN band-edge emission. Furthermore, a GaNP LED was fabricated and the electoluminescence spectra were investigated. The band-edge emission at 420 nm was observed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 639: Symposium G – GaN and Related Alloys-2000 , 2000 , G2.2
Copyright
Copyright © Materials Research Society 2001

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References

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