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US 8,911,883 B2Granted
Photosensitive semiconductor nanocrystals, photosensitive composition comprising semiconductor nanocrystals and method for forming semiconductor nanocrystal pattern using the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJong Jin Park, Eun Joo Jang, Shin Ae Jun, Tae Kyung Ahn, Sung Hun Lee
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Abstract
An organic-inorganic hybrid electroluminescent device having a semiconductor nanocrystal pattern prepared by producing a semiconductor nanocrystal film using semiconductor nanocrystals, where the nanocrystal is surface-coordinated with a compound containing a photosensitive functional group, exposing the film through a mask and developing the exposed film.
Claims9
An organic-inorganic hybrid electroluminescent device comprising:
- a semiconductor nanocrystal pattern prepared by
- coating a substrate with a dispersion in an organic solvent of semiconductor nanocrystals, wherein the semiconductor nanocrystals are surface-coordinated with a compound containing photosensitive functional groups;
- evaporating the organic solvent to form a film of the surface-coordinated semiconductor nanocrystals on the substrate;
- exposing the film to light through a mask;
- cross-linking the photosensitive functional groups to form a network structure of the semiconductor nanocrystals;
- and
- developing the exposed film,
- wherein the compound containing a photosensitive functional group is represented by Formula 1 below:
- X-A-B (1),
- wherein X is NC—, HOOC—, HRN—, POOOH—, RS— or RSS—, in which R is a hydrogen atom or a C1˜10 saturated or unsaturated aliphatic hydrocarbon group;
- A is a direct bond, a saturated aliphatic hydrocarbon group, a phenylene group, a biphenylene group, an aliphatic ester group, an aliphatic amide group, an aliphatic oxycarbonyl group or an aliphatic ether group;
- and
- B is an organic group containing at least one carbon-carbon double bond, which may be substituted with at least one group selected from the group consisting of —CN, —COOH, halogen groups, C1˜5 halogenated alkyl groups, amine groups, C6˜15 aromatic hydrocarbon groups, and C6˜12 aromatic hydrocarbon groups substituted with F, Cl, Br, a halogenated alkyl group, R′O—, in which R′ is a hydrogen atom or a C1˜5 alkyl group, —COOH, an amine group, or —NO2.
10 more elements
An article, comprising:
- a semiconductor nanocrystal pattern prepared by
- coating a substrate with a dispersion in an organic solvent of semiconductor nanocrystals, wherein the semiconductor nanocrystals are surface-coordinated with a compound containing photosensitive functional groups;
- evaporating the organic solvent to form a film of the surface-coordinated semiconductor nanocrystals on the substrate;
- exposing the film to light through a mask;
- cross-linking the photosensitive functional groups to form a network structure of the semiconductor nanocrystals;
- and
- developing the exposed film,
- wherein the compound containing a photosensitive functional group is represented by Formula 1 below:
- X-A-B (1),
- wherein X is NC—, HOOC—, HRN—, POOOH—, RS— or RSS—, in which R is a hydrogen atom or a C1˜10 saturated or unsaturated aliphatic hydrocarbon group;
- A is a direct bond, a saturated aliphatic hydrocarbon group, a phenylene group, a biphenylene group, an aliphatic ester group, an aliphatic amide group, an aliphatic oxycarbonyl group or an aliphatic ether group;
- and
- B is an organic group containing at least one carbon-carbon double bond, which may be substituted with at least one group selected from the group consisting of —CN, —COOH, halogen groups, C1˜5 halogenated alkyl groups, amine groups, C6˜15 aromatic hydrocarbon groups, and C6˜12 aromatic hydrocarbon groups substituted with F, Cl, Br, a halogenated alkyl group, R′O—, in which R′ is a hydrogen atom or a C1˜5 alkyl group, —COOH, an amine group, or —NO2.
10 more elements
Dependencies are inferred from the claim text.