KR20210031027A - 양자점 조성물, 발광 소자 및 이를 포함하는 표시 장치 - Google Patents
양자점 조성물, 발광 소자 및 이를 포함하는 표시 장치 Download PDFInfo
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- KR20210031027A KR20210031027A KR1020190112211A KR20190112211A KR20210031027A KR 20210031027 A KR20210031027 A KR 20210031027A KR 1020190112211 A KR1020190112211 A KR 1020190112211A KR 20190112211 A KR20190112211 A KR 20190112211A KR 20210031027 A KR20210031027 A KR 20210031027A
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- quantum dot
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- light emitting
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- 239000001045 blue dye Substances 0.000 description 1
- 239000001055 blue pigment Substances 0.000 description 1
- XZCJVWCMJYNSQO-UHFFFAOYSA-N butyl pbd Chemical compound C1=CC(C(C)(C)C)=CC=C1C1=NN=C(C=2C=CC(=CC=2)C=2C=CC=CC=2)O1 XZCJVWCMJYNSQO-UHFFFAOYSA-N 0.000 description 1
- YVVVSJAMVJMZRF-UHFFFAOYSA-N c1cncc(c1)-c1cccc(c1)-c1cccc(c1)-c1nc(nc(n1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1 Chemical compound c1cncc(c1)-c1cccc(c1)-c1cccc(c1)-c1nc(nc(n1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1 YVVVSJAMVJMZRF-UHFFFAOYSA-N 0.000 description 1
- XJHCXCQVJFPJIK-UHFFFAOYSA-M caesium fluoride Inorganic materials [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 description 1
- 150000001716 carbazoles Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- UXGNZZKBCMGWAZ-UHFFFAOYSA-N dimethylformamide dmf Chemical compound CN(C)C=O.CN(C)C=O UXGNZZKBCMGWAZ-UHFFFAOYSA-N 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 150000002221 fluorine Chemical class 0.000 description 1
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- 239000001056 green pigment Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- IMKMFBIYHXBKRX-UHFFFAOYSA-M lithium;quinoline-2-carboxylate Chemical compound [Li+].C1=CC=CC2=NC(C(=O)[O-])=CC=C21 IMKMFBIYHXBKRX-UHFFFAOYSA-M 0.000 description 1
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 description 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
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- 239000002105 nanoparticle Substances 0.000 description 1
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- 239000002071 nanotube Substances 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004054 semiconductor nanocrystal Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- OCGWQDWYSQAFTO-UHFFFAOYSA-N tellanylidenelead Chemical compound [Pb]=[Te] OCGWQDWYSQAFTO-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- 150000001651 triphenylamine derivatives Chemical class 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 2는 일 실시예의 표시 장치의 분해 사시도이다.
도 3은 도 1의 I-I'선에 대응하는 일 실시예에 따른 표시 장치의 단면도이다.
도 4는 일 실시예에 따른 발광 소자의 단면도이다.
도 5는 일 실시예에 따른 발광층을 개략적으로 나타낸 단면도이다.
도 6은 일 실시예예 따른 발광 소자의 제조 방법 중 일부를 나타낸 개략도이다.
도 7은 일 실시예에 따른 양자점 조성물의 일부를 개략적으로 나타낸 도면이다.
도 8은 일 실시예에 따른 양자점 조성물을 개략적으로 나타낸 도면이다.
도 9는 일 실시예에 따른 변형양자점의 일부를 개략적으로 나타낸 도면이다.
도 10은 표면처리 전후의 양자점의 발광 효율 및 세기에 대한 분석 결과를 나타낸 그래프이다.
도 11a는 표면처리 전후의 양자점의 광발광 스펙트럼 그래프이다.
도 11b는 표면처리 전후의 양자점의 흡수 스펙트럼 그래프이다.
도 12 및 도 13은 각각 반응 전후의 양자점 안정도 분석 결과를 나타낸 그래프이다.
도 14는 일 실시예의 표시 장치에 따른 평면도이다.
도 15는 도 14의 II-II'선에 대응하는 일 실시예에 따른 표시 장치의 단면도이다.
도 16은 일 실시예에 따른 표시 장치의 단면도이다.
ED: 발광 소자 MQD: 변형양자점
QD: 양자점 LD: 리간드
AD: 첨가제 P-ML: 전구체
ML: 금속 화합물 QCP: 양자점 조성물
CP: 양이온 결합부 AP: 음이온 결합부
CR: 코어 SL: 쉘
Claims (20)
- 양자점;
아민기를 포함하는 첨가제; 및
유기금속 화합물을 포함하는 전구체를 포함하고,
상기 유기금속 화합물은 산소 또는 황을 포함하는 양자점 조성물. - 제1 항에 있어서,
상기 양자점의 표면에 결합되는 리간드를 더 포함하는 양자점 조성물. - 제1 항에 있어서,
상기 전구체는 M-O(O)-C-R1, M-S(S)-C-R1, M-O(O)-C-NH-R1, M-S(S)-C-NH-R1, M-O(O)-C-N-R1, M-S(S)-C-N-R1, M-O(O)-C-O-R1, M-S(S)-C-O-R1, M-O(O)-[C(O)O-C(O)O]n, M-S(S)-[C(O)O-C(O)O]n 중 적어도 하나를 포함하고,
상기 전구체에서 R1은 탄소수 1 이상 20 이하의 알킬기이고, n은 1 이상 10 이하의 정수이고, M은 Cd, Zn, Ir, Ga, Pd, Cu, Ag, Au, Rh, Ir, Ru 또는 Os 중 적어도 하나를 포함하는 양자점 조성물. - 제1 항에 있어서,
상기 첨가제는 1차 아민 또는 2차 아민을 포함하는 양자점 조성물. - 제1 항에 있어서,
유기 용매를 더 포함하는 양자점 조성물. - 제1 항에 있어서,
상기 전구체 및 상기 첨가제의 몰비는 1:2인 양자점 조성물. - 제1 항에 있어서,
상기 첨가제는 상기 전구체에 친핵 공격 반응을 유도하는 양자점 조성물. - 제1 항에 있어서,
상기 양자점은 코어 및 상기 코어를 감싸는 쉘을 포함하는 양자점 조성물. - 제1 전극;
상기 제1 전극 상에 배치된 정공 수송 영역;
상기 정공 수송 영역 상에 배치되고,
산소 또는 황을 포함하는 금속 화합물을 포함하는 변형양자점을 포함하는 발광층;
상기 발광층 상에 배치된 전자 수송 영역; 및
상기 전자 수송 영역 상에 배치된 제2 전극을 포함하는 발광 소자. - 제10 항에 있어서,
상기 변형양자점은
코어 및 상기 코어를 감싸는 쉘을 포함하는 양자점;
상기 양자점 표면에 결합된 리간드; 및
상기 양자점 표면에 결합되고, 상기 금속 화합물을 포함하는 발광 소자. - 제11 항에 있어서,
상기 쉘은 양이온 결합부 및 음이온 결합부를 포함하고,
상기 리간드는 상기 양이온 결합부에 결합하며,
상기 금속 화합물은 상기 음이온 결합부에 결합하는 발광 소자. - 제10 항에 있어서,
상기 금속 화합물은 금속 산화물 또는 금속 황화물을 포함하는 발광 소자. - 제10 항에 있어서,
상기 발광층은 양자점, 상기 양자점 표면에 결합된 리간드, 아민기를 포함하는 첨가제, 및 유기금속 화합물을 포함하는 전구체를 포함하는 양자점 조성물로부터 유래되고,
상기 전구체는 M-O(O)-C-R, M-S(S)-C-R, M-O(O)-C-NH-R, M-S(S)-C-NH-R, M-O(O)-C-N-R, M-S(S)-C-N-R, M-O(O)-C-O-R, M-S(S)-C-O-R, M-O(O)-[C(O)O-C(O)O]n, M-S(S)-[C(O)O-C(O)O]n 중 적어도 하나를 포함하고,
상기 전구체에서 R은 탄소수 1 이상 20 이하의 알킬기이고, n은 1 이상 10 이하의 정수이고, M은 Cd, Zn, Ir, Ga, Pd, Cu, Ag, Au, Rh, Ir, Ru 또는 Os 중 적어도 하나를 포함하고,
상기 첨가제는 1차 아민 또는 2차 아민인 발광 소자. - 복수의 발광 소자들을 포함하고,
상기 복수의 발광 소자들 각각은
제1 전극;
상기 제1 전극과 마주하는 제2 전극; 및
상기 제1 전극과 상기 제2 전극 사이에 배치되며, 변형양자점을 포함하는 발광층을 포함하고,
상기 변형양자점은 산소 또는 황을 포함하는 금속 화합물을 포함하는 표시 장치. - 제15 항에 있어서,
상기 복수의 발광 소자들은
제1 색광을 방출하는 제1 변형양자점을 포함하는 제1 발광 소자;
상기 제1 색광 보다 장파장인 제2 색광을 방출하는 제2 변형양자점을 포함하는 제2 발광 소자; 및
상기 제1 색광 및 상기 제2 색광 보다 장파장인 제3 색광을 방출하는 제3 변형양자점을 포함하는 제3 발광 소자를 포함하는 표시 장치. - 제16 항에 있어서,
상기 제1 내지 제3 변형양자점 각각은
코어 및 상기 코어를 감싸는 쉘을 포함하는 양자점;
상기 양자점 표면에 결합된 리간드; 및
상기 양자점 표면에 결합되는 상기 금속 화합물을 포함하는 표시 장치. - 제16 항에 있어서,
상기 복수의 발광 소자들 상에 배치된 컬러필터층을 더 포함하고,
상기 컬러필터층은
상기 제1 색광을 투과사키는 제1 필터;
상기 제2 색광을 투과시키는 제2 필터; 및
상기 제3 색광을 투과시키는 제3 필터를 포함하는 표시 장치. - 제15 항에 있어서,
상기 금속 화합물은 금속 산화물 또는 금속 황화물을 포함하는 표시 장치. - 제15 항에 있어서,
상기 금속 화합물은 Cd, Zn, Ir, Ga, Pd, Cu, Ag, Au, Rh, Ir, Ru 또는 Os 중 적어도 하나를 포함하는 표시 장치.
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US11866627B2 (en) | 2020-06-02 | 2024-01-09 | Samsung Display Co., Ltd. | Quantum dot composition including a ligand bonded to a surface of a quantum dot, light emitting element including an emission layer containing a quantum dot and ligand residues, and method for manufacturing the same |
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US11866627B2 (en) | 2020-06-02 | 2024-01-09 | Samsung Display Co., Ltd. | Quantum dot composition including a ligand bonded to a surface of a quantum dot, light emitting element including an emission layer containing a quantum dot and ligand residues, and method for manufacturing the same |
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