KR20060073077A - 양자점을 이용하는 메모리 소자 - Google Patents
양자점을 이용하는 메모리 소자 Download PDFInfo
- Publication number
- KR20060073077A KR20060073077A KR1020040111925A KR20040111925A KR20060073077A KR 20060073077 A KR20060073077 A KR 20060073077A KR 1020040111925 A KR1020040111925 A KR 1020040111925A KR 20040111925 A KR20040111925 A KR 20040111925A KR 20060073077 A KR20060073077 A KR 20060073077A
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- South Korea
- Prior art keywords
- memory device
- memory
- poly
- group
- quantum dots
- Prior art date
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- 230000015654 memory Effects 0.000 claims abstract description 59
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- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims description 7
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- 239000002184 metal Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- VUTWBSJIBAPTLY-UHFFFAOYSA-N 1-tert-butyl-2-(2-phenylethynyl)benzene Chemical group C(C)(C)(C)C1=C(C=CC=C1)C#CC1=CC=CC=C1 VUTWBSJIBAPTLY-UHFFFAOYSA-N 0.000 claims description 5
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- 239000011258 core-shell material Substances 0.000 claims description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 5
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0009—RRAM elements whose operation depends upon chemical change
- G11C13/0014—RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0009—RRAM elements whose operation depends upon chemical change
- G11C13/0014—RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material
- G11C13/0016—RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material comprising polymers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/02—Structural aspects of erasable programmable read-only memories
- G11C2216/08—Nonvolatile memory wherein data storage is accomplished by storing relatively few electrons in the storage layer, i.e. single electron memory
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/734—Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
- Y10S977/753—Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc. with polymeric or organic binder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/778—Nanostructure within specified host or matrix material, e.g. nanocomposite films
- Y10S977/783—Organic host/matrix, e.g. lipid
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (15)
- 상부 전극과 하부 전극 사이에 양자점을 유기물 내에 고르게 분산시킨 메모리층을 포함하는 양자점을 이용하는 메모리 소자.
- 제 1항에 있어서, 상기 양자점이 II-VI족, III-V족 또는 IV족 양자점인 것을 특징으로 하는 메모리 소자.
- 제 2항에 있어서, 상기 양자점이 CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InP, InAs, InSb, SiC로 구성되는 그룹으로부터 선택되는 것임을 특징으로 하는 메모리 소자.
- 제 1항에 있어서, 상기 양자점이 코어-쉘 합금 구조의 양자점인 것을 특징으로 하는 메모리 소자.
- 제 4항에 있어서, 상기 양자점이 코어는 II-VI족 화합물 반도체이고, 쉘은 II-VI족 화합물 반도체로 구성된 코어-쉘 구조의 양자점인 것을 특징으로 하는 메모리 소자.
- 제 1항에 있어서, 상기 유기물이 전도성 고분자인 것을 특징으로 하는 메모 리 소자.
- 제 6항에 있어서, 상기 전도성 고분자는 폴리디페닐아세틸렌, 폴리(t-부틸)디페닐아세틸렌, 폴리(트리풀루오로메틸)디페닐아세틸렌, 폴리(비스트리플루오로메틸)아세틸렌, 폴리비스(T-부틸디페닐)아세틸렌, 폴리(트리메틸실릴) 디페닐아세틸렌, 폴리(카르바졸)디페닐아세틸렌, 폴리디아세틸렌, 폴리페닐아세틸렌, 폴리피리딘아세틸렌, 폴리메톡시페닐아세틸렌, 폴리메틸페닐아세틸렌, 폴리(t-부틸)페닐아세틸렌, 폴리니트로페닐아세틸렌, 폴리(트리플루오로메틸)페닐아세틸렌, 폴리(트리메틸실릴)페닐아세틸렌, 및 이들의 유도체와 같은 페틸폴리아세틸렌 폴리머, 폴리아닐린, 폴리티오펜, 폴리피롤, 폴리실란, 폴리스티렌, 폴리퓨란, 폴리인돌, 폴리아줄렌, 폴리페닐렌, 폴리피리딘, 폴리비피리딘, 폴리프탈로시아닌, 폴리(에틸렌디오시티오펜), 폴리티오펜 및 이들의 유도체로 구성되는 그룹으로부터 선택되는 것임을 특징으로 하는 메모리 소자.
- 제 1항에 있어서, 상기 메모리층의 두께는 약 50 내지 3000 Å인 것을 특징으로 하는 메모리 소자.
- 제 1항에 있어서, 상기 전극은 금속, 금속 산화물, 전도성 폴리머, 및 유기 도전체(organic conductor)로 구성되는 그룹으로부터 선택되는 것임을 특징으로 하는 메모리 소자.
- 제 9항에 있어서, 상기 전극은 금, 은, 철, 백금, 알루미늄, 인듐틴옥사이드나트륨, 칼륨, 아연, 마그네슘으로 구성되는 그룹으로부터 선택되는 것임을 특징으로 하는 메모리 소자.
- 제 1항에 있어서, 상기 메모리 소자가 상부 전극 아래 또는 하부 전극 위에 배리어 층을 추가로 포함하는 것을 특징으로 하는 메모리 소자.
- 제 11항에 있어서, 상기 배리어층이 SiOx, AlOx, NbOx, TiOx, CrOx, VOx, TaOx, CuOx, MgOx, WOx, AlNOx로 구성되는 그룹으로부터 선택되는 무기 재료 또는 Alq3, 폴리메틸메타크릴레이트, 폴리스티렌, PET로 구성되는 그룹으로부터 선택되는 유기 재료로 구성되는 것을 특징으로 하는 메모리 소자.
- 제 12항에 있어서, 상기 배리어층이 SiO2, Al2O3, Cu2O, TiO 2, BN, V2O3로 구성되는 그룹으로부터 선택되는 물질을 포함하는 것을 특징으로 하는 메모리 소자.
- 제 1항에 있어서, 상기 배리어층의 두께는 약 20 내지 300 Å인 것을 특징으로 하는 메모리 소자.
- 제 1항에 있어서, 상기 전극 및 메모리층이 모두 유기 재료로 구성된 것을 특징으로 하는 메모리 소자.
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