Title:
PHOTOELECTRIC CONVERSION ELEMENT AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/203995
Kind Code:
A1
Abstract:
A photoelectric conversion element according to the present invention comprises: a photoelectric conversion layer that converts light to a signal charge; a first electrode and a second electrode that collect signal charges; and a first charge blocking layer including a first charge blocking material and positioned between the photoelectric conversion layer and the second electrode. The photoelectric conversion layer is positioned between the second electrode and the first electrode. The first charge blocking layer is configured so as to block charges of a polarity opposite the polarity of the signal charge. A first voltage range and a second voltage range are exhibited as characteristics of a photoelectric current of the photoelectric conversion element in response to a voltage applied between the first electrode and the second electrode if light having a predetermined illuminance is irradiated onto the photoelectric conversion layer. A first photoelectric current density at a first voltage included in the first voltage range is smaller than a second photoelectric current density at a second voltage included in the second voltage range. The first voltage is smaller than the second voltage, a rate of change in the photoelectric current density at the first voltage is smaller than the rate of change in the photoelectric current density at the second voltage, and an absolute value of a difference between a maximum voltage in the first voltage range and a minimum voltage in the first voltage range is 0.5 V or greater.
Inventors:
MITSUISHI MORIO
MIYAKE YASUO
MIYAKE YASUO
Application Number:
PCT/JP2023/013659
Publication Date:
October 26, 2023
Filing Date:
March 31, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H10K30/60; H01L27/146; H04N25/70; H10K30/30; H10K30/40; H10K39/32
Domestic Patent References:
| WO2021220820A1 | 2021-11-04 | |||
| WO2020189169A1 | 2020-09-24 |
Foreign References:
| JP2019212848A | 2019-12-12 | |||
| JP2017188917A | 2017-10-12 | |||
| JP2003158254A | 2003-05-30 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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