Si based mid-infrared GeSn photo detectors and light emitters

Wei Du; Thach Pham; Joe Margetis; Huong Tran; Seyed A. Ghetmiri; Aboozar Mosleh; Greg Sun; Richard A. Soref; John Tolle; Hameed A. Naseem; Baohua Li; Shui-Qing Yu

doi:10.1117/12.2187540

28 August 2015 Si based mid-infrared GeSn photo detectors and light emitters

Wei Du, Thach Pham, Joe Margetis, Huong Tran, Seyed A. Ghetmiri, Aboozar Mosleh, Greg Sun, Richard A. Soref, John Tolle, Hameed A. Naseem, Baohua Li, Shui-Qing Yu

Author Affiliations +

Proceedings Volume 9555, Optical Sensing, Imaging, and Photon Counting: Nanostructured Devices and Applications; 95550E (2015) https://doi.org/10.1117/12.2187540
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

In this work, high performance GeSn photoconductor and light emitting diodes (LED) have been demonstrated. For the photoconductor, the high responsivity was achieved due to high photoconductive gain, which is attributed to the novel optical and electrical design. The longwave cutoff at 2.4 μm was also observed at room temperature. For LED, temperature-dependent study was conducted. The electroluminescence (EL) spectra at different temperatures were obtained and EL peak shift was observed. Moreover, the emission power at different temperatures was measured. High power emission at 2.1 μm was achieved.

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Wei Du, Thach Pham, Joe Margetis, Huong Tran, Seyed A. Ghetmiri, Aboozar Mosleh, Greg Sun, Richard A. Soref, John Tolle, Hameed A. Naseem, Baohua Li, and Shui-Qing Yu "Si based mid-infrared GeSn photo detectors and light emitters", Proc. SPIE 9555, Optical Sensing, Imaging, and Photon Counting: Nanostructured Devices and Applications, 95550E (28 August 2015); https://doi.org/10.1117/12.2187540

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