Extremely high-performance visible light photodetector in the Sb2SeTe2 nanoflake
نویسندگان
چکیده
The photocurrent was performed in the Sb2SeTe2 topological insulator at a wavelength of 532 nm. It exhibits extremely high performance that the responsivity and the photoconductive gain reach 2293 AW-1 and 5344 at 1 V. This high photoresponse is orders of magnitude higher than most reported values in topological insulators and two-dimensional transitional metal dichalcogenides. This finding suggests that the Sb2SeTe2 nanoflake has great potential for future optoelectronic device applications.
منابع مشابه
Facile synthesis of a free-standing Ag@AgCl film for a high performance photocatalyst and photodetector.
A novel and facile method is developed to prepare an Ag@AgCl film which exhibits high photocatalytic activity under visible light irradiation. In addition, it can also be used to fabricate a photodetector that possesses a fast response time and good photocurrent reproducibility.
متن کاملHigh - speed visible light communication system based on SiPM
Silicon Photomultiplier (SiPM) is a photodetector with very high sensitivity, fast response and good performance in oversaturation conditions. When SiPM faces incident optical radiation (sometimes imperceptible for other photodetectors) is able to detect very small variations of light. In this work, we present a SiPM-based optical receiver ables to discriminate small light signals from backgrou...
متن کاملA novel WS2 nanowire-nanoflake hybrid material synthesized from WO3 nanowires in sulfur vapor.
In this work, WS2 nanowire-nanoflake hybrids are synthesized by the sulfurization of hydrothermally grown WO3 nanowires. The influence of temperature on the formation of products is optimized to grow WS2 nanowires covered with nanoflakes. Current-voltage and resistance-temperature measurements carried out on random networks of the nanostructures show nonlinear characteristics and negative tempe...
متن کاملHigh performance broadband photodetector using fabricated nanowires of bismuth selenide.
Recently, very exciting optoelectronic properties of Topological insulators (TIs) such as strong light absorption, photocurrent sensitivity to the polarization of light, layer thickness and size dependent band gap tuning have been demonstrated experimentally. Strong interaction of light with TIs has been shown theoretically along with a proposal for a TIs based broad spectral photodetector havi...
متن کاملImpressive Reduction of Dark Current in InSb Infrared Photodetector to achieve High Temperature Performance
Infrared photo detectors have vast and promising applications in military,industrial and other fields. In this paper, we present a method for improving theperformance of an infrared photodetector based on an InSb substance. To achieve goodperformance at high temperatures, thermal noise and intrusive currents should bereduced. For this purpose, a five-layer hetero structu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 7 شماره
صفحات -
تاریخ انتشار 2017