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Proceedings Paper

Resonant cavity light-emitting diodes: modeling, design, and optimization
Author(s): Mihail M. Dumitrescu; Pekko Sipila; Ville Vilokkinen; L. Toikkanen; Petri Melanen; Mika J. Saarinen; Seppo Orsila; Pekka Savolainen; Mika Toivonen; Markus Pessa
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Paper Abstract

Monolithic top emitting resonant cavity light-emitting diodes operating in the 650 and 880 nm ranges have been prepared using solid-source molecular beam epitaxy growth. Transfer matrix based modeling together with a self- consistent model have been sued to optimize the devices' performances. The design of the layer structure and doping profile was assisted by computer simulations that enabled many device improvements. Among the most significant ones intermediate-composition barrier-reduction layers were introduced in the DBR mirrors for improving the I-V characteristics and the cavity and mirrors were detuned aiming at maximum extraction efficiency. The fabricated devices showed line widths below 15 nm, CW light power output of 8 and 22.5 mW, and external quantum efficiencies of 3 percent and 14.1 percent in the 650 nm and 880 nm ranges, respectively - while the simulations indicate significant performance improvement possibilities.

Paper Details

Date Published: 23 February 2000
PDF: 11 pages
Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); doi: 10.1117/12.378731
Show Author Affiliations
Mihail M. Dumitrescu, Tampere Univ. of Technology (Finland)
Pekko Sipila, Tampere Univ. of Technology (Finland)
Ville Vilokkinen, Tampere Univ. of Technology (Finland)
L. Toikkanen, Tampere Univ. of Technology (Finland)
Petri Melanen, Tampere Univ. of Technology (Finland)
Mika J. Saarinen, Tampere Univ. of Technology (Finland)
Seppo Orsila, Tampere Univ. of Technology (Finland)
Pekka Savolainen, Tampere Univ. of Technology (Finland)
Mika Toivonen, Tampere Univ. of Technology (Finland)
Markus Pessa, Tampere Univ. of Technology (Finland)

Published in SPIE Proceedings Vol. 4068:
SIOEL '99: Sixth Symposium on Optoelectronics
Teodor Necsoiu; Maria Robu; Dan C. Dumitras, Editor(s)

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