-
公开(公告)号：KR100803948B1
公开(公告)日：2008-02-18
申请号：KR1020070012074
申请日：2007-02-06
Applicant: 한국화학연구원
Abstract: A cadmium selenide complex is provided to produce pure cadmium selenide nanoparticles useful for manufacturing cadmium selenide quantum dots at low temperature. A cadmium selenide complex has a structure represented by the formula 1 of Y-Cd-Se(CH2)mO(CH2)nO-R', wherein Y is a halogen element or C1-7 linear or branched alkyl, R' is a C1-7 linear or branched alkyl, and m and n are, independently of each other, 1-7. A method for preparing a cadmium selenide complex represented by the formula 2 of X-Cd-Se(CH2)mO(CH2)nO-R' includes the step of reacting a cadmium(II) halide compound represented by the formula 3 of CdX2 with a selenide alkali metal salt compound represented by the formula 4 of MSe(CH2)mO(CH2)nOR'. In the formulae 2-4, X is a halogen element, R' is a C1-7 linear or branched alkyl, m and n are, independently of each other, 1-7, and M is Li, Na, or K.
Abstract translation: 提供硒化镉络合物以制备用于在低温下制造硒化镉量子点的纯硒化镉纳米颗粒。 硒化镉配合物具有由Y-Cd-Se（CH 2）m O（CH 2）n O-R'的式1表示的结构，其中Y是卤素元素或C 1-7直链或支链烷基，R'是C1 -7直链或支链烷基，m和n彼此独立地为1-7。 由X-Cd-Se（CH2）mO（CH2）nO-R'的式2表示的制备硒化镉络合物的方法包括使由CdX2的式3表示的卤化镉（II） 由MSe（CH 2）m O（CH 2）nOR'的式4表示的硒化物碱金属盐化合物。 在式2-4中，X是卤素元素，R'是C 1-7直链或支链烷基，m和n彼此独立地是1-7，M是Li，Na或K.
-
公开(公告)号：KR100756320B1
公开(公告)日：2007-09-07
申请号：KR1020050056879
申请日：2005-06-29
Applicant: 한국화학연구원 , 단국대학교 산학협력단
IPC: H01L21/335 , H01L29/78 , B82Y40/00
Abstract: 본 발명은 단백질 나노입자를 이용한 탄소나노튜브 트랜지스터 및 이의 제조 방법에 관한 것으로서, 금속성 탄소나노튜브 소자 및 약한 반도성을 띠는 나노튜브소자의 금속전극-탄소나노튜브 계면에 단백질이 코팅된 나노입자를 흡착시켜, 반도성 나노튜브에서는 트랜지스터의 특성이 개선되는 효과를 얻을 수 있고, 금속성 나노튜브에서도 게이트 전압을 이용하여 채널의 전류를 크게 변화시킬 수 있는 트랜지스터 작동 효과를 얻을 수 있도록 탄소나노튜브 트랜지스터의 금속 전극과 탄소나노튜브의 계면을 단백질 나노입자로 표면개질시키는 계면공학을 수행한 것으로서, 이빔리소그라피 또는 포토리소그라피를 이용하여 제작된 탄소나노튜브 소자와 금속전극 사이에 단백질이 코팅된 나노입자를 고정화하여 게이트 전압에 보다 쉽게 반응하도록 한 단백질 나노입자를 이용한 탄소나노튜브 트랜지스터 및 이의 제조 방법을 제공하고자 한 것이다.
탄소나노튜브, 단백질 나노입자, 트랜지스터, 금속전극, 계면-
公开(公告)号：KR100746311B1
公开(公告)日：2007-08-06
申请号：KR1020030020858
申请日：2003-04-02
Applicant: 한국화학연구원
CPC classification number: B01J23/74 , B01J23/755 , B82Y30/00 , B82Y40/00 , C01B32/166 , C01B2202/36 , D01F9/12 , Y02P20/544
Abstract: This invention relates to a method to induce growth of carbon nanotubes using a liquid phased-hydrocarbon based material under a critical range of equilibrating between liquid and gas phases, thereby easily manipulating a required carbon source. This invention also relates to a method to facilitate easy generation of a carbon backbone of the carbon nanotube because the reaction is performed in the presence of a metal nanoparticle or a metal compound capable of spontaneously generating a seed catalyst which stimulates the growth of carbon nanotubes as well as secures safety enough for the industrial application by using a mild reaction condition within the critical range. Accordingly, this invention can produce the carbon nanotube with high transition efficiency under a mild condition with a relatively lower temperature and pressure than those in conventional gas phased-methods without using a costly equipment, thereby cost-effectively producing the carbon nanotube in large quantities.
-
公开(公告)号：KR100678764B1
公开(公告)日：2007-02-06
申请号：KR1020060019631
申请日：2006-02-28
Applicant: 한국화학연구원
Abstract: A fabrication method of colloidal quantum dot nano-particle is provided to obtain the quantum dot having favorable concentration, particle size and bandgap energy without using expensive and toxic materials such as TOP or TOPO by adding bivalent anion type of sixth group metal(M2^2-) solution to second group metal(M1^2+) oleate. The method includes: first step of preparing second group metal oleate by reacting oleic acid in second group metal precursor solution of any one selected from Cd, Pb and Zn; second step of preparing a solution containing bivalance anionic sixth group metal by dissolving precursor of sixth group metal or cationic sixth group metal in a solvent with high boiling point of 200 to 350deg.C and proceeding reductive reaction of the solution at 100 to 200deg.C; and third step of producing colloidal quantum dot nano-particles by reacting the prepared oleate of second group metal and the prepared solution containing bivalance anionic sixth group metal at 100 to 250deg.C.
Abstract translation: 本发明提供一种胶体量子点纳米粒子的制备方法，通过添加二价阴离子型第六族金属（M2 ^ 2），不需要使用TOP或TOPO等昂贵有毒物质，获得具有良好浓度，粒径和带隙能量的量子点 - ）第二组金属（M1 ^ 2 +）油酸盐的溶液。 该方法包括：第一步，通过使油酸在选自Cd，Pb和Zn中任一种的第二族金属前体溶液中反应制备第二族金属油酸盐; 第二步，通过将第六族金属或阳离子第六族金属的前体溶解在高沸点为200-350℃的溶剂中并在100-200℃下进行该溶液的还原反应，制备含有双离子阴离子第六族金属的溶液.C ; 以及第三步，通过将所制备的第二组金属的油酸盐和所制备的含有双离子阴离子第六族金属的溶液在100至250℃下反应来制备胶体量子点纳米颗粒。
-
公开(公告)号：KR1020070002119A
公开(公告)日：2007-01-05
申请号：KR1020050057443
申请日：2005-06-30
Applicant: 한국화학연구원
CPC classification number: H01L29/45 , B82Y10/00 , H01L21/02606 , H01L29/0669 , H01L29/41725 , H01L51/0048
Abstract: A carbon nanotube transistor having a deformation electrode is provided to increase the work function of a metal and to effectively induce hole doping by using an SU-8 negative photoresist on an electrode of the carbon nanotube transistor. An alignment marker is formed on a SiO2/Si substrate(10). A pattern of liquid catalyst is manufactured using a PMMA(polymethylmethacrylate) layer on the SiO2/Si substrate that is insulated by a SiO2 layer. The PMMA layer is removed by an acetone solution. A single walled carbon nanotube(14) is grown at CH4 and H2 atmosphere during 10 minutes in a furnace of 900 ‹C. An electrode(12) is formed by performing photolithography and thermal evaporation on the carbon nanotube. The electrode is connected to the carbon nanotube to configure a carbon nanotube transistor and then an SU-8 negative photoresist(16) is coated on the carbon nanotube transistor to form an insulating layer.
Abstract translation: 提供具有变形电极的碳纳米管晶体管，以增加金属的功函数，并且通过在碳纳米管晶体管的电极上使用SU-8负性光刻胶来有效地诱导空穴掺杂。 在SiO 2 / Si衬底（10）上形成取向标记。 使用由SiO 2层绝缘的SiO 2 / Si衬底上的PMMA（聚甲基丙烯酸甲酯）层制造液体催化剂的图案。 通过丙酮溶液除去PMMA层。 在900℃的炉中，在CH 4和H 2气氛下10分钟内生长单壁碳纳米管（14）。 通过对碳纳米管进行光刻和热蒸发来形成电极（12）。 电极与碳纳米管连接以构成碳纳米管晶体管，然后在碳纳米管晶体管上涂覆SU-8负性光致抗蚀剂（16）以形成绝缘层。
-
Patent Agency Ranking
公开(公告)号：KR1020070001405A
公开(公告)日：2007-01-04
申请号：KR1020050056879
申请日：2005-06-29
Applicant: 한국화학연구원 , 단국대학교 산학협력단
IPC: H01L21/335 , H01L29/78 , B82Y40/00
CPC classification number: H01L29/0665 , B82Y40/00 , H01L21/02606 , H01L29/0669
Abstract: A carbon nano-tube using protein nanoparticles and its manufacturing method are provided to vary a current of a channel largely by absorbing nanoparticles coated with protein at an interface between a metal electrode and a carbon nano-tube. A carbon nano-tube transistor is comprised of a metal source electrode(30), a metal drain electrode, a gate, a channel region made of a carbon nano-tube(20). Nanoparticles(40) are absorbed at interfaces between the carbon nano-tube and the metal source electrode, and between the carbon nano-tube and the metal drain electrode. The nanoparticles are coated with protein and have charged states being easily changed according to variation of a gate voltage. The protein coated on the nanoparticles is streptavidin.
Abstract translation: 提供了使用蛋白质纳米颗粒的碳纳米管及其制造方法，以通过在金属电极和碳纳米管之间的界面处吸收由蛋白质包被的纳米粒子来改变通道的电流。 碳纳米管晶体管由金属源电极（30），金属漏电极，栅极，由碳纳米管（20）制成的沟道区域构成。 纳米颗粒（40）在碳纳米管和金属源电极之间以及碳纳米管和金属漏极之间的界面处被吸收。 纳米颗粒用蛋白质包被，并且根据栅极电压的变化容易地改变带电状态。 涂覆在纳米颗粒上的蛋白质是链霉亲和素。
-
公开(公告)号：KR100534203B1
公开(公告)日：2005-12-07
申请号：KR1020030074318
申请日：2003-10-23
Applicant: 한국화학연구원
Abstract: 본 발명에 따른 단일벽 탄소나노튜브를 이용한 기체 센서의 제조방법은 센서용 전극 패턴을 새롭게 설계하는 단계(a)와, 탄소나노튜브를 전극 패턴 위에 떨어뜨리고 인접한 두 전극 사이로 수평 이동시키는 단계(b)를 포함하며, 단계(b)는 전극 패턴위에 탄소나노튜브를 떨어뜨려 일정시간 정지 상태로 유지하는 단계와, 500rpm 이상의 고속으로 탄소나노튜브가 놓인 전극 패턴을 회전시켜 나노튜브가 원심력을 받도록 하는 단계와, 메탄올을 이용하여 불순물 나노입자와 전극 패턴에 놓이지 못한 잔류 나노튜브를 제거하여 전극 패턴을 세정하는 단계를 포함한다.
이와 같은, 본 발명에 의하면 탄소나노튜브를 화학기상증착법으로 직접 성장시킨 후 전극을 성장한 나노튜브 위에 부착시키는 고비용의 매우 어려운 공정으로 이루어진 직접 성장법과, IDT(Interdigitated) 구조로 전극을 만들고 탄소나노튜브를 그 위에 떨어뜨려 다량의 나노튜브가 다수의 위치에서 전극과 병렬 연결되도록 제조하는 직접 부착법이 갖고 있는 단점, 즉 낮은 감도 및 느린 회복속도를 쉽게 극복하고, 기존 두가지 방법의 장점만을 획득할 수 있는 효과를 제공한다.-
公开(公告)号：KR100532695B1
公开(公告)日：2005-11-30
申请号：KR1020030015923
申请日：2003-03-14
Applicant: 한국화학연구원 , 한화케미칼 주식회사
IPC: B22F9/24
Abstract: 본 발명은 고농도 초미세 금속입자 용액의 제조방법에 관한 것으로서, 더욱 상세하게는 금속염 수용액에 고분자 전해질을 첨가하여 고분자-금속염 착체를 형성시킨 후 이를 환원제로 처리함으로써 생성된 금속입자가 응집 또는 침강하지 않아 입자크기가 100 ㎚ 이하의 초미세 크기로 작고 균일하여 화학공업용 촉매 및 소결합금 제조 및 적층 세라믹 콘덴서의 내부 전극 형성용 도전성 페이스트 제조 등에 사용할 수 있는 고농도 초미세 금속입자 용액의 제조방법에 관한 것이다.
-
公开(公告)号：KR100411175B1
公开(公告)日：2003-12-18
申请号：KR1020000057408
申请日：2000-09-29
Applicant: 한국화학연구원
IPC: C04B35/624 , C04B35/632
Abstract: PURPOSE: A preparation method of ceramic gel compact is provided, which controls gelation-inducing time easily without lowering the physical properties of gel compact by adding peroxide-based polymerization initiator and gelation-inducing time increaser to ceramic dispersing agent for gel casting. CONSTITUTION: The preparation method comprises the steps of: dispersing at least one ceramic powder selected from Al2O3, ZrO2, ZnO, Si3N4 and SiC, into a solution of at least one organic radical monomer selected from acryl amide, methylacryl amide and hydroxymethyl acryl amide; adding one or more of peroxide-based polymerization initiator selected from ammonium persulfate, sodium persulfate, magnesium persulfate and hydrogen peroxide, and one or more of gelation-inducing time increaser selected from nitroxyl radicals, aliphatic alcohols and aqueous azos; degassing and pouring into a mold; forming a gel compact. The nitroxyl radical-based gelation-inducing time increaser, such as 2,2,6,6,-tetramethyl piperidine-1-oxyl(TEMPO), 4-hydroxy-2,2,6,6,-tetramethyl piperidine-1-oxyl(HTEMPO), is used in a range of 5-500 ppm, based on the total amount of dispersed solution. The aliphatic alcohol-based gelation-inducing time increaser, such as methyl alcohol, ethyl alcohol, butyl alcohol, etc, is used in a range of 5-20%, based on the total amount of dispersed solution. The aqueous azo-based gelation-inducing time increaser, such as azobis(2-amidinopropane) hydrochlorate, is used within the range of 1:9-9:1(in a weight ratio), based on the peroxide-based polymerization initiator.
Abstract translation: 目的：提供一种陶瓷凝胶致密物的制备方法，通过向陶瓷分散剂中加入过氧化物类聚合引发剂和凝胶诱导时间增加剂，可以容易地控制凝胶诱导时间而不降低凝胶致密物的物理性能。 组成：制备方法包括以下步骤：将选自Al2O3，ZrO2，ZnO，Si3N4和SiC的至少一种陶瓷粉分散到选自丙烯酰胺，甲基丙烯酰胺和羟甲基丙烯酰胺中的至少一种有机基团单体的溶液中; 加入一种或多种选自过硫酸铵，过硫酸钠，过硫酸镁和过氧化氢的过氧化物基聚合引发剂以及一种或多种选自硝酰基自由基，脂肪醇和含水偶氮基的胶凝诱导时间增加剂; 脱气并倒入模具中; 形成凝胶压块。 基于硝酰自由基的凝胶化诱导时间增加剂，例如2,2,6,6-四甲基哌啶-1-氧基（TEMPO），4-羟基-2,2,6,6-四甲基哌啶-1-氧基 氧基（HTEMPO）以基于分散溶液总量的5-500ppm的范围使用。 基于分散溶液的总量，使用基于脂族醇的凝胶诱导时间增加剂，例如甲醇，乙醇，丁醇等，其范围为5-20％。 以过氧化物为基础的聚合引发剂，基于水性偶氮的凝胶化诱导时间增加剂如偶氮二（2-脒基丙烷）盐酸盐的用量范围为1：9-9：1（重量比）。
-
公开(公告)号：KR1020030080294A
公开(公告)日：2003-10-17
申请号：KR1020020018851
申请日：2002-04-08
Applicant: 한국화학연구원
Abstract: PURPOSE: A method for manufacturing a diamond tool is provided to improve cutting ability and durability by additionally reforming the surface of diamond grit and wet-coating the reformed surface of the diamond grit with nano metal powder. CONSTITUTION: A method for manufacturing a diamond tool comprises the steps of: heat-treating diamond grit, soaking the diamond grit in an acid or an alkaline solution, and reforming the surface of the diamond grit; wet-coating the reformed surface of the diamond grit with nano metal powder; applying transition metal paste to a shank base metal and forming a metal adhesive layer; and scattering the diamond grit coated with nano metal powder on the metal adhesive layer.
Abstract translation: 目的：提供金刚石工具的制造方法，通过对金刚石砂粒的表面进行额外重整，并用纳米金属粉末湿式涂覆金刚石砂粒的重整表面来提高切割能力和耐久性。 构成：用于制造金刚石工具的方法包括以下步骤：对金刚石砂粒进行热处理，将金刚石砂粒浸入酸或碱性溶液中，并重整金刚石砂粒的表面; 用纳米金属粉末对金刚石砂粒的重整表面进行湿法涂覆; 将过渡金属膏施加到柄基体金属并形成金属粘合剂层; 并将涂覆有纳米金属粉末的金刚石砂粒散布在金属粘合剂层上。
-
-
-
-
-
-
-
-
-
Search Results
167
records
(took 0.028 seconds)
