Title:
SEMICONDUCTOR FILM, PHOTOELECTRIC CONVERSION ELEMENT, IMAGE SENSOR AND METHOD FOR PRODUCING SEMICONDUCTOR FILM
Document Type and Number:
WIPO Patent Application WO/2021/002131
Kind Code:
A1
Abstract:
The present invention provides: a semiconductor film which has high electrical conductivity, high photocurrent value and high external quantum efficiency, while exhibiting excellent in-plane uniformity of the external quantum efficiency; a photoelectric conversion element; an image sensor; and a method for producing a semiconductor film. A semiconductor film according to the present invention contains an assembly of semiconductor quantum dots comprising metal atoms and ligands that are coordinated to the semiconductor quantum dots; and the ligands comprise first ligands that are inorganic halides and second ligands that are represented by one of formulae (A) to (C). In the formulae, XA1 and XA2 are separated from each other by one atom or two atoms by means of LA1; XB1 and XB3, and XB2 and XB3 are respectively separated from each other by one atom or two atoms by means of LB1 or LB2; and XC1 and XC4, XC2 and XC4, and XC3 and XC4 are respectively separated from each other by one atom or two atoms by means of LC1, LC2 or LC3.
Inventors:
ONO MASASHI (JP)
TAKATA MASAHIRO (JP)
MIYATA TETSUSHI (JP)
TAKATA MASAHIRO (JP)
MIYATA TETSUSHI (JP)
Application Number:
PCT/JP2020/021607
Publication Date:
January 07, 2021
Filing Date:
June 01, 2020
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H01L31/0248; H01L51/00; H01L51/30
Foreign References:
| JP2014093327A | 2014-05-19 | |||
| US20180145204A1 | 2018-05-24 | |||
| US20150183943A1 | 2015-07-02 | |||
| KR20130114436A | 2013-10-18 |
Other References:
PRADHAN, SANTANU ET AL.: "Trap-State Suppression and Improved Charge Transport in PbS Quantum Dot Solar Cells with Synergistic Mixed-Ligand Treatments", SMALL, vol. 13, 2017, pages 1700598 - 1-1700598-9, XP055782946
BOHM, MARCUS L ET AL.: "Size and Energy Level Tuning of Quantum Dot Solids via a Hybrid Ligand Complex", THE JOURNAL OF PHYSICAL CHEMISTRY LETTERS, vol. 6, 2015, pages 3510 - 3514, XP055766549, DOI: 10.1021/acs.jpclett.5b01751
BOHM, MARCUS L ET AL.: "Size and Energy Level Tuning of Quantum Dot Solids via a Hybrid Ligand Complex", THE JOURNAL OF PHYSICAL CHEMISTRY LETTERS, vol. 6, 2015, pages 3510 - 3514, XP055766549, DOI: 10.1021/acs.jpclett.5b01751
Attorney, Agent or Firm:
NAKASHIMA Junko et al. (JP)
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