caa a22 4500 445368446 CHVBK 20180317142938.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00340-011-4545-9 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4545-9 Enhanced photoluminescence from photonic crystal-coated GaN LED wafers [Elektronische Daten] [F. Rahman, A. Khokhar] This paper describes results of studies on photoluminescence from blue-emitting GaN LED wafers coated with a layer of synthetic opal photonic crystals. Commercial LED wafer material was used and samples were coated with thin films consisting of several layers of stacked spherical polystyrene balls. Various optical measurements were performed on these samples while they were excited with a 405nm laser beam. Diffraction pattern due to the photonic crystal structure, showing the underlying six-fold symmetry, was recorded. The spectrum and angle-resolved intensity of photoluminescence were measured to understand the coupling of LED light with the grown photonic crystal structure on top of the wafer. Springer-Verlag, 2011 Rahman F. School of Engineering Optoelectronics Research Group, University of Glasgow, Rankine Building, Oakfield Avenue, G12 8LT, Glasgow, UK aut Khokhar A. School of Engineering Optoelectronics Research Group, University of Glasgow, Rankine Building, Oakfield Avenue, G12 8LT, Glasgow, UK aut Applied Physics B Springer-Verlag 103/3(2011-06-01), 623-628 0946-2171 103:3<623 2011 103 340 https://doi.org/10.1007/s00340-011-4545-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4545-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rahman F. School of Engineering Optoelectronics Research Group, University of Glasgow, Rankine Building, Oakfield Avenue, G12 8LT, Glasgow, UK aut NATIONALLICENCE 700 1- Khokhar A. School of Engineering Optoelectronics Research Group, University of Glasgow, Rankine Building, Oakfield Avenue, G12 8LT, Glasgow, UK aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 103/3(2011-06-01), 623-628 0946-2171 103:3<623 2011 103 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer