WEST LAFAYETTE, Ind. – Researchers have solved a problem hindering development of highly sensitive optical devices made of a material called graphene, an advance that could bring applications from ...

Researchers in Taiwan say they have created a new chlorophyll-coated graphene phototransistor that is much more sensitive to light than devices made of pure graphene. The researchers believe that the ...

A single phototransistor mimics retinal bipolar cell function while detecting visible and infrared light, enabling low-power image processing through programmable ON and OFF photoresponses. (Nanowerk ...

This applications note presents some basic facts about phototransistors including its different architectures commonly used in the industry. It discusses its operation and how things work inside these ...

(Nanowerk News) A research team led by Prof. CAO Hongtao at the Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, in cooperation with Prof. ZHANG Haizhong's ...

The devices, which operate on a heterojunction-gated (HG) structure, demonstrate high responsivity and detectivity while maintaining a simplified fabrication process. This approach avoids the ...

Inspired by mammals' eyes, electrical engineers have created the fastest, most responsive flexible silicon phototransistor ever made. Inspired by mammals' eyes, University of Wisconsin-Madison ...

The extraordinary optical and electronic properties of graphene make it a promising component of high-performance photodetectors. However, in typical graphene-based photodetectors demonstrated to date ...

What if ultrafast pulses of light could operate computers at speeds a million times faster than today's best processors? A team of scientists, including researchers from the University of Arizona, are ...

Northwestern Engineering’s Manijeh Razeghi, Walter P. Murphy Professor of Electrical Computer Engineering, has developed a novel type-II superlattice (T2SL) based heterojunction phototransistor (HPT) ...

Photodetection underpins medical X-ray imaging, the ubiquitous visible light cameras, and emerging applications such as near-infrared medical imaging and short-wave infrared surveillance and machine ...