SEMICONDUCTOR NANOPARTICLE, DISPERSION LIQUID, FILM, AND METHOD OF PRODUCING SEMICONDUCTOR NANOPARTICLE
First Claim
1. A semiconductor nanoparticle,wherein oxygen, zinc, and sulfur are detected by X-ray photoelectron spectroscopy analysis, anda peak (ICH3) which is derived from a hydrocarbon group and present in a range of 2800 cm−
- 1 to 3000 cm−
1 and a peak (ICOO) which is derived from COO−
and present in a range of 1400 cm−
1 to 1600 cm−
1 are detected by Fourier transform infrared spectroscopy analysis,wherein a molar ratio of oxygen to sulfur which is acquired by X-ray photoelectron spectroscopy analysis satisfies Formula (1), anda molar ratio of oxygen to zinc which is acquired by X-ray photoelectron spectroscopy analysis satisfies Formula (2).
0.20≤
O/S≤
0.80
(1)
0.30≤
O/Zn≤
1.10
(2)
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Accused Products
Abstract
An object of the present invention is to provide a semiconductor nanoparticle having high emission efficiency and excellent durability; a method of producing the same; and a dispersion liquid and a film obtained by using a semiconductor nanoparticle. The semiconductor nanoparticle of the present invention is a semiconductor nanoparticle in which oxygen, zinc, and sulfur are detected by X-ray photoelectron spectroscopy analysis and a peak (ICH3) which is derived from a hydrocarbon group and present in a range of 2800 cm−1 to 3000 cm−1 and a peak (ICOO) which is derived from COO− and present in a range of 1400 cm−1 to 1600 cm−1 are detected by Fourier transform infrared spectroscopy analysis.
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Citations
31 Claims
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1. A semiconductor nanoparticle,
wherein oxygen, zinc, and sulfur are detected by X-ray photoelectron spectroscopy analysis, and a peak (ICH3) which is derived from a hydrocarbon group and present in a range of 2800 cm− - 1 to 3000 cm−
1 and a peak (ICOO) which is derived from COO−
and present in a range of 1400 cm−
1 to 1600 cm−
1 are detected by Fourier transform infrared spectroscopy analysis,wherein a molar ratio of oxygen to sulfur which is acquired by X-ray photoelectron spectroscopy analysis satisfies Formula (1), and a molar ratio of oxygen to zinc which is acquired by X-ray photoelectron spectroscopy analysis satisfies Formula (2).
0.20≤
O/S≤
0.80
(1)
0.30≤
O/Zn≤
1.10
(2) - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
- 1 to 3000 cm−
Specification