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We demonstrate a wavelength extended InGaAsBi short-wave infrared photodetector on an InP substrate with the 50% cutoff wavelength up to 2.63μm at room temperature. The moderate growth temperature is applied to balance the Bi incorporation and material quality. Photoluminescence and x-ray diffraction reciprocal space mapping measurements reveal the contents of bismuth and indium in InGaAsBi to be about 2.7% and 76%,respectively. The InGaAsBi detector shows the temperature-insensitive cutoff wavelength with a low coefficient of about 0.96 nm/K. The demonstration indicates the InP-based InGaAsBi material is a promising candidate for wavelength extended short-wave infrared detectors working. 相似文献
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