Intercalated Graphene Layers for Charge Extraction and Enhanced Light Absorption
Conventional photodetectors have either or both top and bottom electrodes to collect charges generated by photons in the light absorbing layers. This invention is constructed whereby it has multiple intercalated electrodes that collect the charges faster because the electrodes are distributed evenly through the entire absorbing film.
There are broad applications for which this technology is suitable for, including- light detecting systems, imaging cameras and motion detecting systems.
Researchers at UC San Diego have developed materials, articles of manufacture and devices using a novel architecture for QD absorbing layers based on “multiple intercalated” Gr layers as current extractors. In the invention graphene layers are stacked with spacing shorter than 200-300 nm, the thickness of absorbing thin films that exhibit efficient charge collection in the visible range. The intercalated Gr/QD devices exhibit a much higher photoresponse than single Gr/QD devices. They can be operated in the low bias regime which is compatible with silicon integrated circuits and represent a new class of high light absorption and efficient charge collection devices.
State Of Development A working prototype has been developed. Intellectual Property Info This technology is patent pending and available for licensing and/or research sponsorship. Related Materials Tech ID/UC Case 29458/2017-333-0 Related Cases 2017-333-0
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