Separation of bulk lifetime and surface recombination velocity by multi-wavelength technique

Luigi Sirleto; Andrea Irace; Gianpaolo F. Vitale; Luigi Zeni; Antonello Cutolo

doi:10.1117/12.525491

19 November 2003 Separation of bulk lifetime and surface recombination velocity by multi-wavelength technique

Luigi Sirleto, Andrea Irace, Gianpaolo F. Vitale, Luigi Zeni, Antonello Cutolo

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.525491
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

In this paper a contactless, all-optical and non-destructive technique for simultaneous measurement of minority carrier recombination lifetime and surface recombination velocity is presented. The principle is based upon measurement, at low injection level, of the free carrier optical absorption transient probed by an infrared beam following electron-hole pair excitation by a pulsed laser beam working at several wavelengths. Being contactless and non-destructive with respect to the surface to be analyzed, the method is appealing for routine lifetime characterization.

Citation Download Citation

Luigi Sirleto, Andrea Irace, Gianpaolo F. Vitale, Luigi Zeni, and Antonello Cutolo "Separation of bulk lifetime and surface recombination velocity by multi-wavelength technique", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.525491

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