Title:
PHOTOELECTRIC CONVERSION ELEMENT PROVIDED WITH TRANSITION METAL DICHALCOGENIDE THIN FILM, AND LIGHT RECEIVING ELEMENT PROVIDED WITH SAID PHOTOELECTRIC CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/163024
Kind Code:
A1
Abstract:
The present invention relates to a photoelectric conversion element which comprises a thin film that is formed on a base material, while being composed of a transition metal dichalcogenide. According to the present invention, the surface of the thin film, which is composed of a transition metal dichalcogenide, is modified with at least either of Au nanorod particles that are formed of Au or Ag nanorod particles that are formed of Ag. Meanwhile, the average aspect ratio of the Au nanorod particles is from 3.0 to 12.0; and the average aspect ratio of the Ag nanorod particles is from 3.0 to 13.0. According to the present invention, sensitivity to the light having a wavelength within the near-infrared range is improved by the sensitizing action due to localized surface plasmon resonance that appears in the Au/Ag nanorod particles. A photoelectric conversion element according to the present invention also exhibits a good sensitivity to the light having a wavelength within the near-infrared range around 1600 nm.
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Inventors:
NAKAZAWA TATSUYA (JP)
KATO SHINICHI (JP)
KIM HYUNG JUN (KR)
KIM DONG HYUN (KR)
KATO SHINICHI (JP)
KIM HYUNG JUN (KR)
KIM DONG HYUN (KR)
Application Number:
PCT/JP2021/036590
Publication Date:
August 04, 2022
Filing Date:
October 04, 2021
Export Citation:
Assignee:
TANAKA PRECIOUS METAL IND (JP)
UNIV INDUSTRY FOUNDATION YONSEI UNIV (KR)
UNIV INDUSTRY FOUNDATION YONSEI UNIV (KR)
International Classes:
H01L31/0264; B82Y20/00; H01L31/08
Foreign References:
| US20150372163A1 | 2015-12-24 | |||
| CN110993731A | 2020-04-10 | |||
| US20120164717A1 | 2012-06-28 | |||
| CN106984830A | 2017-07-28 |
Other References:
ZHANG KAIXUAN, ZHANG LIBO, HAN LI, WANG LIN, CHEN ZHIQINGZI, XING HUAIZHONG, CHEN XIAOSHUANG: "Recent progress and challenges based on two-dimensional material photodetectors", NANO EXPRESS, vol. 2, no. 1, 1 March 2021 (2021-03-01), pages 1 - 21, XP055954159, DOI: 10.1088/2632-959X/abd45b
Attorney, Agent or Firm:
TANAKA AND OKAZAKI (JP)
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