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US 12,684,932 B2Granted
Organic light receiving element and light receiving device
AssigneesKyushu Univ., National Univ. Corporation, Hamamatsu Photonics K.K.
InventorsChihaya Adachi, Hajime Nakanotani, Takahiko Yamanaka, Shigeo Hara
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Abstract
An organic light-receiving element includes an organic light-receiving layer containing a plurality of organic semiconductor molecules. Each of the plurality of organic semiconductor molecules is a molecule in which an excited state enabling reverse intersystem crossing from a lowest excited triplet state to a lowest excited singlet state is formed in each of the plurality of organic semiconductor molecules due to irradiation with light.
Claims12
A light-receiving device, comprising:
- an organic light-receiving element;
- and
- a controller electrically connected to the organic light-receiving element,
- wherein the organic light-receiving element including:
- a first electrode;
- a second electrode;
- and
- an organic light-receiving layer disposed between the first electrode and the second electrode and containing a plurality of organic semiconductor molecules,
- wherein each of the plurality of organic semiconductor molecules is a molecule in which an excited state enabling reverse intersystem crossing from a lowest excited triplet state to a lowest excited singlet state is formed in each of the plurality of organic semiconductor molecules due to irradiation with light, and
- the controller is configured to adjust a potential difference between the first electrode and the second electrode in a light-receiving period so that an electric field in a direction of causing charge separation occurs in the organic light-receiving layer, and detect a current generated by the charge separation.
7 more elements
Dependencies are inferred from the claim text.