JP6683376B2 - 新規な化合物半導体およびその活用 - Google Patents
新規な化合物半導体およびその活用 Download PDFInfo
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- 150000001875 compounds Chemical class 0.000 title claims description 104
- 239000004065 semiconductor Substances 0.000 title claims description 99
- 239000000126 substance Substances 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 20
- 229910052714 tellurium Inorganic materials 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000005245 sintering Methods 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 229910052711 selenium Inorganic materials 0.000 claims description 11
- 229910052787 antimony Inorganic materials 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 description 25
- 229910052717 sulfur Inorganic materials 0.000 description 16
- 229910052777 Praseodymium Inorganic materials 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 230000031700 light absorption Effects 0.000 description 11
- 239000011669 selenium Substances 0.000 description 9
- 229910052798 chalcogen Inorganic materials 0.000 description 7
- 150000001787 chalcogens Chemical class 0.000 description 7
- 239000000969 carrier Substances 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000002490 spark plasma sintering Methods 0.000 description 5
- 229910020712 Co—Sb Inorganic materials 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000000224 chemical solution deposition Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004549 pulsed laser deposition Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004613 CdTe Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical group NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 description 1
- 230000005679 Peltier effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000001257 actinium Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- FAWGZAFXDJGWBB-UHFFFAOYSA-N antimony(3+) Chemical compound [Sb+3] FAWGZAFXDJGWBB-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C12/00—Alloys based on antimony or bismuth
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/85—Thermoelectric active materials
- H10N10/851—Thermoelectric active materials comprising inorganic compositions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/80—Compounds containing cobalt, with or without oxygen or hydrogen, and containing one or more other elements
- C01G51/82—Compounds containing cobalt, with or without oxygen or hydrogen, and containing two or more other elements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/12—Active materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/12—Active materials
- H10F77/121—Active materials comprising only selenium or only tellurium
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/01—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/85—Thermoelectric active materials
- H10N10/851—Thermoelectric active materials comprising inorganic compositions
- H10N10/852—Thermoelectric active materials comprising inorganic compositions comprising tellurium, selenium or sulfur
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/85—Thermoelectric active materials
- H10N10/851—Thermoelectric active materials comprising inorganic compositions
- H10N10/853—Thermoelectric active materials comprising inorganic compositions comprising arsenic, antimony or bismuth
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Photovoltaic Devices (AREA)
Description
本出願は、2017年3月15日付の韓国特許出願第10−2017−0032642号に基づく優先権の利益を主張し、当該韓国特許出願の文献に開示されたすべての内容は本明細書の一部として含まれる。
[化学式1]
PrxSyCo4Sb12−zQz
前記化学式1において、
Qは、O、Se、およびTeのうちの少なくとも1つを含み、
x、y、およびzは、各元素のモル比率を意味し、0<x<1、0<y<1、および0<z<12である。
Pr0.025S0.2Co4Sb11.4Te0.6を合成するために、パウダー形態のPr、S、Co、Sb、およびTeを称量した後、これらをアルミナモルタル(alumina mortar)に入れて混合した。混合された材料は超硬モールドに入れてペレットにし、ヒューズドシリカチューブ(fused silica tube)に入れて真空密封した。そして、これをボックスファーネス(box furnace)に入れて、680℃で15時間加熱してPr0.025S0.2Co4Sb11.4Te0.6を得た。この後、室温まで徐々に冷却し、放電プラズマ焼結用グラファイトモールドに充填した後、650℃の温度、50MPaの圧力で10分間放電プラズマ焼結した。得られた化合物半導体の相対密度は98%以上と測定された。
混合物の組成をPr0.05S0.2Co4Sb11.4Te0.6に変更したことを除き、前記実施例1と同様の方法で化合物半導体を製造した。
混合物の組成をPr0.075S0.2Co4Sb11.4Te0.6に変更したことを除き、前記実施例1と同様の方法で化合物半導体を製造した。
混合物の組成をPr0.1S0.2Co4Sb11.4Te0.6に変更したことを除き、前記実施例1と同様の方法で化合物半導体を製造した。
試薬としてCo、Sb、およびTeを準備し、混合物の組成をCo4Sb11.4Te0.6に変更したことを除き、前記実施例1と同様の方法で化合物半導体を製造した。
試薬としてPr、Co、Sb、およびTeを準備し、混合物の組成をPr0.05Co4Sb11.4Te0.6となるように変更したことを除き、前記実施例1と同様の方法で実施した。
試薬としてS、Co、Sb、およびTeを準備し、混合物の組成をS0.2Co4Sb11.4Te0.6となるように変更したことを除き、前記実施例1と同様の方法で化合物半導体を製造した。
前記実施例および比較例で得られた化合物半導体の格子熱伝導度を測定し、その結果を図1に示した。
前記実施例および比較例で得られた化合物半導体の熱電性能指数を測定し、その結果を下記表2および図2に示した。
[数式1]
ZT=σS2T/K
ここで、ZTは熱電性能指数、σは電気伝導度、Sはゼーベック係数、Tは温度、Kは熱伝導度を示す。
Claims (12)
- 下記化学式1で表される化合物半導体:
[化学式1]
PrxSyCo4Sb12−zQz
前記化学式1において、
Qは、O、Se、およびTeのうちの少なくとも1つを含み、
x、y、およびzは、各元素のモル比率を意味し、0<x<1、0<y<1、および0<z<12である。 - 前記化学式1において、xおよびyは、x/y<1である、請求項1に記載の化合物半導体。
- 前記化学式1において、xおよびyは、0<x+y≦1である、請求項1または2に記載の化合物半導体。
- 前記化学式1において、z1モルに対するxのモル比が0.01モル〜0.5モルである、請求項1〜3のうちのいずれか一項に記載の化合物半導体。
- 前記化学式1において、0.01≦x<0.2、0.1≦y≦0.5、0.01≦z≦1である、請求項1〜4のうちのいずれか一項に記載の化合物半導体。
- 前記化学式1において、QがTeである、請求項1〜5のうちのいずれか一項に記載の化合物半導体。
- Pr、S、Co、Sb、およびQ元素(Qは、O、Se、およびTeのうちの少なくとも1つの元素を含む)を混合するが、下記化学式1の化合物の組成を満たすようにする含有量で混合して混合物を準備する段階と、
前記混合物を熱処理する段階とを含む、請求項1に記載の化合物半導体の製造方法:
[化学式1]
PrxSyCo4Sb12−zQz
前記化学式1において、
Qは、O、Se、およびTeのうちの少なくとも1つを含み、
x、y、およびzは、各元素のモル比率を意味し、0<x<1、0<y<1、および0<z<12である。 - 前記熱処理段階が400℃〜800℃で行われる、請求項7に記載の化合物半導体の製造方法。
- 前記熱処理段階の後、冷却段階をさらに含む、請求項7または8に記載の化合物半導体の製造方法。
- 前記熱処理段階の後、加圧焼結段階をさらに含む、請求項7〜9のうちのいずれか一項に記載の化合物半導体の製造方法。
- 請求項1〜6のいずれか1項に記載の化合物半導体を含む熱電変換素子。
- 請求項1〜6のいずれか1項に記載の化合物半導体を含む太陽電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2017-0032642 | 2017-03-15 | ||
KR1020170032642A KR102003352B1 (ko) | 2017-03-15 | 2017-03-15 | 신규한 화합물 반도체 및 그 활용 |
PCT/KR2017/015376 WO2018169173A1 (ko) | 2017-03-15 | 2017-12-22 | 신규한 화합물 반도체 및 그 활용 |
Publications (2)
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JP2019519090A JP2019519090A (ja) | 2019-07-04 |
JP6683376B2 true JP6683376B2 (ja) | 2020-04-22 |
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Country Status (6)
Country | Link |
---|---|
US (1) | US11162159B2 (ja) |
EP (1) | EP3416204B1 (ja) |
JP (1) | JP6683376B2 (ja) |
KR (1) | KR102003352B1 (ja) |
CN (1) | CN109075242B (ja) |
WO (1) | WO2018169173A1 (ja) |
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DE19955788A1 (de) * | 1999-11-19 | 2001-05-23 | Basf Ag | Thermoelektrisch aktive Materialien und diese enthaltende Generatoren |
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2017
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