JPWO2014050704A1 - 導電性ペースト及び太陽電池 - Google Patents
導電性ペースト及び太陽電池 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 claims abstract description 63
- 239000000758 substrate Substances 0.000 claims abstract description 48
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 27
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 21
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 claims description 14
- 229910052791 calcium Inorganic materials 0.000 claims description 5
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- 238000005245 sintering Methods 0.000 claims description 5
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- BJQHLKABXJIVAM-UHFFFAOYSA-N Diethylhexyl phthalate Natural products CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
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- OVKDFILSBMEKLT-UHFFFAOYSA-N alpha-Terpineol Natural products CC(=C)C1(O)CCC(C)=CC1 OVKDFILSBMEKLT-UHFFFAOYSA-N 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
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- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
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- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
- C03C3/122—Silica-free oxide glass compositions containing oxides of As, Sb, Bi, Mo, W, V, Te as glass formers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
- C03C3/127—Silica-free oxide glass compositions containing TiO2 as glass former
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
- C03C8/18—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing free metals
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- 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
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Abstract
Description
ガラスは、非晶質化して網目状のネットワーク構造を形成する網目状酸化物と、網目状酸化物を修飾して非晶質化する修飾酸化物と、両者の中間的な中間酸化物とで構成される。このうちTeO2は、網目状酸化物として作用し、しかも、焼結後の受光面電極が半導体基板内部に深く侵食しないことから、ファイヤースルー性の制御が容易であり、重要な構成成分となり得る。
BaOは、修飾酸化物としてガラスの流動性を調整する作用を有し、ファイヤースルー性の促進にも寄与する。
Bi2O3は、修飾酸化物としてガラスの流動性を調整する作用を有し、また、ファイヤースルー性の促進にも寄与する。
Li2O、Na2O、及びK2Oは、Bi2O3と同様、修飾酸化物としてガラスの軟化点を調整する機能を有し、ファイヤースルー性の向上に寄与する。
(導電性ペーストの作製)
ガラス素材としてTeO2、BaO、Bi2O3、Li2O、Na2O、K2O、MgO、CaO、SrO、Al2O3、TiO2、ZrO2、及びMoO3を用意した。そして、これらガラス素材が表1に示すような配合量となるように秤量して調製し、試料番号1〜11のガラスフリットを作製した。
縦50mm、横50mm、厚み0.2mmの単結晶のSi系半導体基板の表面全域に膜厚0.1μmの反射防止膜をプラズマ化学気相成長法(PECVD)で形成した。尚、このSi系半導体基板は、p型Si系半導体層の一部にPを拡散させ、これによりp型Si系半導体層の上面にn型Si系半導体層が形成されている。
試料番号1〜11の各試料について、ソーラーシミュレータ(英弘精機社製、SS−50XIL)を使用し、温度25℃、AM(エアマス)−1.5の条件下、電流−電圧特性曲線を測定し、この電流−電圧特性曲線から数式(1)で表わされる曲線因子FF(Fill Factor)を求めた。
ここで、Pmaxは試料の最大出力、Vocは出力端子を開放したときの開放電圧、Iscは出力端子を短絡したときの短絡電流である。
表2は試料番号1〜11の曲線因子FF及び変換効率ηを示している。
2 反射防止膜
3 受光面電極(電極)
Claims (7)
- 太陽電池の電極を形成するための導電性ペーストであって、
少なくとも導電性粉末と、ガラスフリットと、有機ビヒクルとを含有し、
前記ガラスフリットは、Te、Ba、Bi、さらにLi、Na、及びKの中から選択された少なくとも1種を主成分として含有すると共に、
前記Teの含有モル量は、TeO2に換算して55〜85mol%であり、前記Baの含有モル量は、BaOに換算して0.1〜35mol%であり、Biの含有モル量は、Bi2O3に換算して0.1〜25mol%であり、かつ前記Li、Na、及びKの中から選択された少なくとも1種の含有モル量が、酸化物に換算して0.1〜15mol%であることを特徴とする導電性ペースト。 - 前記ガラスフリット中の前記主成分の含有モル量は、酸化物に換算し総計で95mol%以上であることを特徴とする請求項1記載の導電性ペースト。
- 前記ガラスフリットは、Mg、Ca、及びSrのうちの少なくとも1種の成分を含有していることを特徴とする請求項1又は請求項2記載の導電性ペースト。
- 前記ガラスフリットは、Al、Ti、及びZrの中から選択された少なくとも1種の成分を含有していることを特徴とする請求項1乃至請求項3のいずれかに記載の導電性ペースト。
- 前記ガラスフリットの含有量は、1〜10wtl%であることを特徴とする請求項1乃至請求項4のいずれかに記載の導電性ペースト。
- 前記導電性粉末は、Ag粉末であることを特徴とする請求項1乃至請求項5のいずれかに記載の導電性ペースト。
- 半導体基板の一方の主面に反射防止膜及び該反射防止膜を貫通する電極が形成され、
前記電極が、請求項1乃至請求項6のいずれかに記載の導電性ペーストが焼結されてなることを特徴とする太陽電池。
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PCT/JP2013/075352 WO2014050704A1 (ja) | 2012-09-26 | 2013-09-19 | 導電性ペースト及び太陽電池 |
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TWI521546B (zh) * | 2014-12-08 | 2016-02-11 | 碩禾電子材料股份有限公司 | 一種含無鉛玻璃熔塊之導電漿(三) |
US10486669B2 (en) | 2015-02-10 | 2019-11-26 | Bwi (Shanghai) Co., Ltd. | Method of assembling a power brake assembly |
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JP2011096747A (ja) * | 2009-10-28 | 2011-05-12 | Shoei Chem Ind Co | 太陽電池電極形成用導電性ペースト |
JP2012084585A (ja) * | 2010-10-07 | 2012-04-26 | Shoei Chem Ind Co | 太陽電池素子並びにその製造方法 |
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KR100476158B1 (ko) * | 2000-12-11 | 2005-03-15 | 주식회사 아모텍 | 글래스 코팅막을 갖는 세라믹 칩 소자 및 그의 제조방법 |
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JP5559510B2 (ja) * | 2009-10-28 | 2014-07-23 | 昭栄化学工業株式会社 | 太陽電池素子及びその製造方法 |
CN102476919B (zh) * | 2010-11-24 | 2015-01-14 | 比亚迪股份有限公司 | 一种玻璃粉及其制备方法以及一种太阳能电池用导电浆料 |
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JP2011096747A (ja) * | 2009-10-28 | 2011-05-12 | Shoei Chem Ind Co | 太陽電池電極形成用導電性ペースト |
JP2012084585A (ja) * | 2010-10-07 | 2012-04-26 | Shoei Chem Ind Co | 太陽電池素子並びにその製造方法 |
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KR20150065768A (ko) | 2015-06-15 |
KR101649890B1 (ko) | 2016-08-23 |
EP2905813A1 (en) | 2015-08-12 |
WO2014050704A1 (ja) | 2014-04-03 |
CN104798210A (zh) | 2015-07-22 |
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