The research progress of Si-based blocked-impurity-band infrared detecting materials and detectors

Abstract

<p indent=0mm>Infrared detection possesses a significantly application prospect in the field of astrophysics. Due to the special natures of deep-space exploring objects, the performance of infrared detector is very demanding. Blocked-impurity-band (BIB) infrared detectors, with advantages of wide spectrum coverage, low noise, high sensitivity, good resistance to cosmic particle radiation etc., have become the state-of-the-art choice for astronomical application internationally. The response of BIB detectors ranges from mid-infrared to far-infrared waveband, and the widespread use of BIB detectors help human beings obtain a series of important scientific achievements in the field of deep-space exploration. The research on BIB infrared detector in China started rather late. Even though big progress has been achieved in recent years, it still lags far behind the advanced level globally. This article reviews the research progress for BIB infrared detectors of China in the past <sc>5 years.</sc> The preparation technology, physical property characterization, photoelectric response characteristics of BIB infrared detection material and corresponding devices, and the control of surface plasmon polaritons on the photoelectric response of the detectors are introduced detailly. These provide references and experimental bases for the development of BIB infrared detector in China.