Title:
GRAPHENE-LOADED NOBLE METAL COMPOSITE POWDER AND PREPARATION METHOD THEREFOR, AND SCHOTTKY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/123559
Kind Code:
A1
Abstract:
Provided are a graphene-loaded noble metal composite powder and a preparation method therefor, and a Schottky device. Graphene oxide and a noble metal precursor are used as raw materials, and the composite powder is prepared by means of a hydrothermal reduction reaction. During the hydrothermal reduction reaction, graphene oxide and noble metal ions can be synchronously reduced, and formed noble metal nanoparticles are evenly distributed on the surface and between layers of graphene, such that the agglomeration of graphene can be effectively inhibited, and the conductivity of the graphene can be fully exerted. According to the preparation method, the raw materials are easily available, the steps are simple, the cost is low, the regulation and control flexibility is good, and the noble metal doping concentration is easy to control. A Schottky device prepared using the graphene-loaded noble metal composite powder has a relatively large Schottky barrier height and a small deviation of ideal factor from the theoretical value.
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Inventors:
ZHANG HUI (CN)
DUAN JINYU (CN)
LI YAPENG (CN)
FENG JUNJUN (CN)
WANG HUIQI (CN)
PU ZHUOLIN (CN)
LIU YU (CN)
DUAN JINYU (CN)
LI YAPENG (CN)
FENG JUNJUN (CN)
WANG HUIQI (CN)
PU ZHUOLIN (CN)
LIU YU (CN)
Application Number:
PCT/CN2022/071504
Publication Date:
July 06, 2023
Filing Date:
January 12, 2022
Export Citation:
Assignee:
UNIV SHAANXI TECHNOLOGY (CN)
International Classes:
H01L29/47; B82Y30/00
Foreign References:
| CN107694565A | 2018-02-16 | |||
| CN106835082A | 2017-06-13 |
Other References:
ZHANG, HUI ET AL.: "Preparation and characterization of silver-doped graphene-reinforced silver matrix bulk composite as a novel electrical contact material.", APPLIED PHYSICS A: MATERIALS SCIENCE & PROCESSING, vol. 125, no. 2, 9 January 2019 (2019-01-09), XP036704808, DOI: 10.1007/s00339-019-2379-1
ZHANG, HUI ET AL.: "In situ controllable growth of noble metal nanodot on graphene sheet.", JOURNAL OF MATERIALS CHEMISTRY, vol. 21, no. 34, 29 July 2011 (2011-07-29), pages 12986 - 12990, XP055424626, DOI: 10.1039/c1jm11231g
HUANG KUN, YAN YUCONG, YU XUEGONG, ZHANG HUI, YANG DEREN: "Graphene coupled with Pt cubic nanoparticles for high performance, air-stable graphene-silicon solar cells", NANO ENERGY, ELSEVIER, NL, vol. 32, 1 February 2017 (2017-02-01), NL , pages 225 - 231, XP093075565, ISSN: 2211-2855, DOI: 10.1016/j.nanoen.2016.12.042
ZHANG, HUI ET AL.: "In situ controllable growth of noble metal nanodot on graphene sheet.", JOURNAL OF MATERIALS CHEMISTRY, vol. 21, no. 34, 29 July 2011 (2011-07-29), pages 12986 - 12990, XP055424626, DOI: 10.1039/c1jm11231g
HUANG KUN, YAN YUCONG, YU XUEGONG, ZHANG HUI, YANG DEREN: "Graphene coupled with Pt cubic nanoparticles for high performance, air-stable graphene-silicon solar cells", NANO ENERGY, ELSEVIER, NL, vol. 32, 1 February 2017 (2017-02-01), NL , pages 225 - 231, XP093075565, ISSN: 2211-2855, DOI: 10.1016/j.nanoen.2016.12.042
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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