Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Wilhelm Dr. Stein"'
Autor:
Volker Härle, Frank Kühn, Heribert Zull, Matthias Winter, Andreas Plössl, Johannes Baur, Michael Fehrer, Wilhelm Dr. Stein, Dominik Eisert, Berthold Hahn
Publikováno v:
physica status solidi (a). 194:399-402
We investigate the influence of chip size, substrate shaping and mounting techniques on the light extraction efficiency of large area InGaN-LED chips grown on 6H-SiC substrates. New techniques to achieve good light extraction for large chip areas are
Autor:
Stefan Illek, Reiner Windisch, Rainer Butendeich, Klaus Streubel, Peter Stauss, Ralph Wirth, Wilhelm Dr. Stein, Walter Wegleiter, Heribert Zull, Paola Altieri
Publikováno v:
SPIE Proceedings.
In Thinfilm LEDs, the substrate absorption of the generated light is avoided by a metal reflector between the light emitting layer and the substrate. The light extraction can be further enhanced by buried microreflectors or surface texturing. We demo
Autor:
Heribert Zull, Ralph Wirth, Andreas Ploessl, Christian Karnutsch, Klaus Streubel, Wilhelm Dr. Stein, Peter Stauss, Walter Wegleiter, Stefan Illek, Reiner Windisch, Ines Pietzonka
Publikováno v:
SPIE Proceedings.
The concept of an AlGaInP thin-film light emitting diode includes a structure of semiconductor layers with low opticalabsorption on which a highly reflective mirror is applied. After bonding this wafer to a suitable carrier, the absorbingGaAs substra