Khokhar, A.Z and Parsons, K. and Hubbard, G. and Rahman, F. and MacIntyre, D.S. and Xiong, C. and Massoubre, D. and Gong, Z. and Johnson, N.P. and De La Rue, R.M. and Watson, I.M. and Gu, E. and Dawson, M.D. and Abbott, S.J. and Charlton, M.D.B and Tillin, M. (2010) Nanofabrication of gallium nitride photonic crystal light-emitting diodes. Microelectronic Engineering, 87 (11). pp. 2200-2207. ISSN 0167-9317Full text not available in this repository. (Request a copy from the Strathclyde author)
We describe a comparison of nanofabrication technologies for the fabrication of 2D photonic crystal structures on GaN/InGaN blue LEDs. Such devices exhibit enhanced brightness and the possibility of controlling the angular emission profile of emitted light. This paper describes three nano lithography techniques for patterning photonic crystal structures on the emitting faces of LEDs: direct-write electron beam lithography, hard stamp nanoimprint lithography and soft-stamp nanoimprint lithography with disposable embossing masters. In each case we describe variations on the technique as well as its advantages and disadvantages. Complete process details have been given for all three techniques. In addition, we show how high performance GaN dry etch techniques, coupled with optical process monitoring can transfer resist patterns into underlying GaN material with high fidelity.
|Keywords:||light-emitting diodes, photonic crystals, nanolithography, GaN dry-etching, Optics. Light, Surfaces, Coatings and Films, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering, Condensed Matter Physics|
|Subjects:||Science > Physics > Optics. Light|
|Department:||Faculty of Science > Physics > Institute of Photonics|
|Depositing user:||Miss Lisa Flanagan|
|Date Deposited:||09 Nov 2010 12:43|
|Last modified:||27 Apr 2016 16:10|