公开(公告)号：US20220165973A1

公开(公告)日：2022-05-26

申请号：US17434867

申请日：2019-03-11

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  TATSUYA RYOHWA ,  Masaki YAMAMOTO ,  TAKAHIRO DOE

IPC: H01L51/50 ,  C09K11/88 ,  C09K11/70 ,  C09K11/08 ,  C09K11/02

Abstract: A light-emitting element includes: an anode electrode configured to supply holes; a cathode electrode configured to supply electrons; and a light-emitting layer disposed between the anode electrode and the cathode electrode. The light-emitting layer includes a plurality of quantum dot phosphors configured to emit light in conjunction with combining of holes supplied from the anode electrode and electrons supplied from the cathode electrode and a p-type dopant.

公开(公告)号：US20200378833A1

公开(公告)日：2020-12-03

申请号：US16889095

申请日：2020-06-01

Applicant: SHARP KABUSHIKI KAISHA ,  THE UNIVERSITY OF TOKYO

Inventor： HIROFUMI YOSHIKAWA ,  TAKAHIRO DOE ,  YASUHIKO ARAKAWA

IPC: G01J5/28 ,  G01J5/00 ,  H01L31/0352 ,  H01L31/109

Abstract: Provided is an infrared detection apparatus without a bandpass filter and capable of reducing an error produced when a temperature of an object is calculated. A detection unit has a quantum-dot stacked structure. A first voltage and a second voltage are respectively provided for setting a first responsivity peak wavelength and a second responsivity peak wavelength to be used for detecting an infrared ray in the detection unit. The second responsivity peak wavelength is different from the first responsivity peak wavelength. A detector detects (i) a first photocurrent to be output from the detection unit when the first voltage is applied to the photoelectric conversion layer, and (ii) a second photocurrent to be output from the detection unit when the second voltage is applied to the photoelectric conversion layer. A calculator calculates a temperature of an object based on the first photocurrent and the second photocurrent detected by the detector.