Graphene–Quantum Dot Hybrid Photodetectors with Low Dark-Current Readout
نویسندگان
چکیده
منابع مشابه
Low dark current InAs/GaSb type-II superlattice infrared photodetectors with resonant tunnelling filters
InAs/GaSb type-II strained-layer superlattice (SLS) photovoltaic infrared (IR) detectors are currently of great interest for midand long-wave IR detection. A novel technique of reducing detector dark current by inserting resonant tunnelling barriers into a conventional InAs/GaSb SLS is investigated. The GaSb/InAs/GaSb resonant tunnelling double barrier heterostructure was designed to be periodi...
متن کاملModeling of dark current in midinfrared quantum well infrared photodetectors
We present a model for the description of dark IV curves in midinfrared quantum well infrared photodetectors at low temperatures, in a regime where dark current is dominated by interwell tunneling. The model separates the IV curve into a low-field and a high-field region allowing us to identify the effects ascribed to miniband transport and carrier localization, respectively. At low fields the ...
متن کاملModeling of High Temperature GaN Quantum Dot Infrared Photodetectors
In this paper, we present calculations for different parameters of quantum dot infrared photodetectors. We considered a structure which includes quantum dots with large conduction-band-offset materials (GaN/AlGaN). Single band effective mass approximation has been applied in order to calculate the electronic structure. Throughout the modeling, we tried to consider the limiting factors which dec...
متن کاملCurrent skimming-based CMOS readout architectures for Quantum Well Infrared Photodetectors
Cost-effective high-performance IR imaging cameras based on Quantum Well Infrared Photodetectors (QWIP) need CMOS readout structures which allow effective operation at temperatures compatible with inexpensive long-life coolers. At such high temperatures (around 72 K), the QWIP suffers from large background and dark currents (Fig. 1), which have a tendency to saturate the integrating capacitor i...
متن کاملLong-Term Stable Organic Photodetectors with Ultra Low Dark Currents for High Detectivity Applications
Printed organic photodetectors can transform plastic, paper or glass into smart surfaces. This innovative technology is now growing exponentially due to the strong demand in human-machine interfaces. To date, only niche markets are targeted since organic sensors still present reduced performances in comparison with their inorganic counterparts. Here we demonstrate that it is possible to enginee...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACS Nano
سال: 2020
ISSN: 1936-0851,1936-086X
DOI: 10.1021/acsnano.0c04848