JP7244044B2 - 熱電変換素子 - Google Patents
熱電変換素子 Download PDFInfo
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- JP7244044B2 JP7244044B2 JP2018149848A JP2018149848A JP7244044B2 JP 7244044 B2 JP7244044 B2 JP 7244044B2 JP 2018149848 A JP2018149848 A JP 2018149848A JP 2018149848 A JP2018149848 A JP 2018149848A JP 7244044 B2 JP7244044 B2 JP 7244044B2
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- thermoelectric conversion
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- perovskite
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- 238000006243 chemical reaction Methods 0.000 title claims description 32
- 229910044991 metal oxide Inorganic materials 0.000 claims description 23
- 150000004706 metal oxides Chemical class 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical group O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 8
- 150000001768 cations Chemical class 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- 125000005843 halogen group Chemical group 0.000 claims description 4
- 229940125782 compound 2 Drugs 0.000 claims 1
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- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 9
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000002243 precursor Substances 0.000 description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- PNKUSGQVOMIXLU-UHFFFAOYSA-N Formamidine Chemical compound NC=N PNKUSGQVOMIXLU-UHFFFAOYSA-N 0.000 description 4
- BAVYZALUXZFZLV-UHFFFAOYSA-O Methylammonium ion Chemical compound [NH3+]C BAVYZALUXZFZLV-UHFFFAOYSA-O 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- BHHGXPLMPWCGHP-UHFFFAOYSA-O 2-phenylethanaminium Chemical compound [NH3+]CCC1=CC=CC=C1 BHHGXPLMPWCGHP-UHFFFAOYSA-O 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
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- AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical compound CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- GUVUOGQBMYCBQP-UHFFFAOYSA-N dmpu Chemical compound CN1CCCN(C)C1=O GUVUOGQBMYCBQP-UHFFFAOYSA-N 0.000 description 2
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- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- IIFVWLUQBAIPMJ-UHFFFAOYSA-N (4-fluorophenyl)methanamine Chemical compound NCC1=CC=C(F)C=C1 IIFVWLUQBAIPMJ-UHFFFAOYSA-N 0.000 description 1
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- CKLFJWXRWIQYOC-UHFFFAOYSA-N 2-(4-fluorophenyl)ethanamine Chemical compound NCCC1=CC=C(F)C=C1 CKLFJWXRWIQYOC-UHFFFAOYSA-N 0.000 description 1
- UUIMDJFBHNDZOW-UHFFFAOYSA-N 2-tert-butylpyridine Chemical compound CC(C)(C)C1=CC=CC=N1 UUIMDJFBHNDZOW-UHFFFAOYSA-N 0.000 description 1
- KRZCOLNOCZKSDF-UHFFFAOYSA-N 4-fluoroaniline Chemical compound NC1=CC=C(F)C=C1 KRZCOLNOCZKSDF-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229910002665 PbTe Inorganic materials 0.000 description 1
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 1
- 230000005678 Seebeck effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052768 actinide Inorganic materials 0.000 description 1
- 150000001255 actinides Chemical class 0.000 description 1
- -1 alkoxide compound Chemical class 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000003618 dip coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003867 organic ammonium compounds Chemical group 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- 239000000523 sample Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 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
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- 238000001947 vapour-phase growth Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Inorganic Compounds Of Heavy Metals (AREA)
Description
[1]ペロブスカイト化合物を含むペロブスカイト層と、該ペロブスカイト層に隣接する低導電性の金属酸化物層とを備えたことを特徴とする熱電変換素子。
[2]ペロブスカイト化合物が、ABX3(Aはカチオン、Bは金属、Xはハロゲンを示し、A、B及びXは、それぞれ複数の元素から構成されてもよい。)で示され、該ペロブスカイト化合物における金属BがSnを含むことを特徴とする上記[1]記載の熱電変換素子。
[3]低導電性の金属酸化物層が、イットリウム酸化物を含むイットリウム酸化物層であることを特徴とする上記[1]又は[2]記載の熱電変換素子。
本発明のペロブスカイト層におけるペロブスカイト化合物は、通常、ABX3(A:カチオン、B:金属、X:ハロゲン)で示される。A、B及びXは、それぞれ、1種の元素から構成されていてもよく、複数の元素から構成されてもよい。ペロブスカイト化合物は、A-B-X3で表したときに、体心に金属B、各頂点にカチオンA、面心にハロゲンXが配置された立方晶系の構造を有する。
本発明の低導電性の金属酸化物層としては、電気伝導率が低い金属酸化物の層であれば特に制限されるものではなく、例えば、電気伝導率が1000mS/cm以下の金属酸化物層をいい、500mS/cm以下の金属酸化物層であることが好ましく、100mS/cm以下の金属酸化物層であることがより好ましい。層に含まれる金属酸化物としては、周期律表3族の金属の酸化物を挙げることができ、具体的に、Sc(スカンジウム)、Y(イットリウム)、ランタノイド、アクチノイド等の酸化物を挙げることができる。これらの中でも、イットリウムの酸化物が好ましい。
(電気伝導率の測定)
Glass基板上に、1.2MのY2O3溶液をスピンコートし、さらに1.2MのCsSnI3溶液をスピンコートして、本発明の熱電変換素子の性能を評価するための電子物性評価用デバイスを作製した(Glass/Y2O3/CsSnI3)。Glass基板上に形成されたY2O3層及びCsSnI3層の合計の厚さ(膜厚)は、337nmであった。
(熱伝導率の測定)
電子物性評価用デバイスと同様にスピンコートにより、熱電物性評価用デバイス(Al2O3/Y2O3/CsSnI3/MoO3/Au)を作製した。また、比較として、Y2O3層が設けられていない比較デバイス(Al2O3/CsSnI3/MoO3/Au)を作製した。
(電気伝導率と熱伝導率の関係)
図1に、上記測定した電気伝導率及び熱伝導率の関係を示す。
図1に示すように、CsSnI3層に隣接してY2O3層が設けられたデバイスは、Y2O3層が設けられていないものに比べて、電気伝導率が向上すると同時に熱伝導率が低下した。すなわち、高電気伝導性及び低熱伝導性の両立が実現され、熱電変換素子として有用であることが明らかとなった。
Claims (3)
- ABX3(Aはカチオン、Bは金属、Xはハロゲンを示し、A、B及びXは、それぞれ複数の元素から構成されてもよい。)で示されるペロブスカイト化合物を含むペロブスカイト層と、該ペロブスカイト層に隣接する低導電性の金属酸化物層とを備え、前記ペロブスカイト化合物がPbを含まないことを特徴とする熱電変換素子。
- ペロブスカイト化合物が、ABX3(Aはカチオン、Bは金属、Xはハロゲンを示し、A、B及びXは、それぞれ複数の元素から構成されてもよい。)で示され、該ペロブスカイト化合物における金属BがSnを含むことを特徴とする請求項1記載の熱電変換素子。
- 低導電性の金属酸化物層が、イットリウム酸化物を含むイットリウム酸化物層であることを特徴とする請求項1又は2記載の熱電変換素子。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012033910A (ja) | 2010-06-30 | 2012-02-16 | Nagoya Univ | 多孔性絶縁体及び電界効果トランジスタ |
JP2016222492A (ja) | 2015-05-29 | 2016-12-28 | 国立大学法人金沢大学 | 微粒子化ペロブスカイト膜及びそれを用いた機能性素子 |
JP2017152491A (ja) | 2016-02-23 | 2017-08-31 | 富士通株式会社 | 熱電変換素子及びその製造方法 |
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CN107431128B (zh) * | 2015-01-08 | 2020-12-25 | 韩国化学研究院 | 包括有机、无机杂化钙钛矿化合物膜的器件的制备方法及包括有机、无机杂化钙钛矿化合物膜的器件 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012033910A (ja) | 2010-06-30 | 2012-02-16 | Nagoya Univ | 多孔性絶縁体及び電界効果トランジスタ |
JP2016222492A (ja) | 2015-05-29 | 2016-12-28 | 国立大学法人金沢大学 | 微粒子化ペロブスカイト膜及びそれを用いた機能性素子 |
JP2017152491A (ja) | 2016-02-23 | 2017-08-31 | 富士通株式会社 | 熱電変換素子及びその製造方法 |
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