CN103298759A - 导电性糊剂及使用该导电性糊剂的太阳能电池元件 - Google Patents
导电性糊剂及使用该导电性糊剂的太阳能电池元件 Download PDFInfo
- Publication number
- CN103298759A CN103298759A CN2011800648184A CN201180064818A CN103298759A CN 103298759 A CN103298759 A CN 103298759A CN 2011800648184 A CN2011800648184 A CN 2011800648184A CN 201180064818 A CN201180064818 A CN 201180064818A CN 103298759 A CN103298759 A CN 103298759A
- Authority
- CN
- China
- Prior art keywords
- conductive paste
- glass
- solar cell
- layer
- semiconductor substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims abstract description 48
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 25
- 239000010703 silicon Substances 0.000 claims abstract description 25
- 239000004065 semiconductor Substances 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims description 20
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000012776 electronic material Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 19
- 239000004411 aluminium Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000001856 Ethyl cellulose Substances 0.000 description 3
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000003667 anti-reflective effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 229920001249 ethyl cellulose Polymers 0.000 description 3
- 235000019325 ethyl cellulose Nutrition 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000008012 organic excipient Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- WUOACPNHFRMFPN-SECBINFHSA-N (S)-(-)-alpha-terpineol Chemical compound CC1=CC[C@@H](C(C)(C)O)CC1 WUOACPNHFRMFPN-SECBINFHSA-N 0.000 description 1
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- OVKDFILSBMEKLT-UHFFFAOYSA-N alpha-Terpineol Natural products CC(=C)C1(O)CCC(C)=CC1 OVKDFILSBMEKLT-UHFFFAOYSA-N 0.000 description 1
- 229940088601 alpha-terpineol Drugs 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- 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
- C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
-
- 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
- C03C8/16—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions with vehicle or suspending agents, e.g. slip
-
- 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
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/06—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier
- H01L31/068—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/547—Monocrystalline silicon PV cells
Abstract
本发明的目的在于获得一种可用作形成半导体硅太阳能电池的电极的不含铅的导电性糊剂。一种导电性糊剂,其特征在于,其为用于使用半导体硅基板的太阳能电池中的导电性糊剂,该导电性糊剂中包含的玻璃粉的组成为实质上不含铅成分,并且以质量%计含有5~15的SiO2、20~40的B2O3、0~10的Al2O3、30~45的ZnO、5~30的RO(选自MgO、CaO、SrO及BaO组成的组中的至少1种的总和)、0.1~6的R2O(选自Li2O、Na2O及K2O组成的组中的至少1种的总和)。
Description
技术领域
本发明涉及可用作形成半导体硅太阳能电池的电极的不含铅的导电性糊剂。
背景技术
作为使用了半导体硅基板的电子部件,已知有如图1所示的太阳能电池元件。如图1所示,太阳能电池元件中,在厚度为200μm左右的p型半导体硅基板1的光接收面侧形成有n型半导体硅层2,在光接收面侧表面形成有用以提高光接收效率的氮化硅膜等抗反射膜3,在该抗反射膜3上进一步形成有与半导体连接的表面电极4。
另外,在p型半导体硅基板1的背面侧,同样地形成有铝电极层5。该铝电极层5一般由如下方法形成:使用丝网印刷等涂布由铝粉末、玻璃粉、含有乙基纤维素、丙烯酸(酯)类树脂等粘合剂的有机赋形剂形成的铝糊剂材料,在600~900℃左右的温度下进行短时间焙烧。
在该铝糊剂材料的焙烧中,铝扩散到p型半导体硅基板1中,从而在铝电极层5与p型半导体硅基板1之间形成被称为BSF(背装电场,Back Surface Field)层6的Si-Al共晶层,进而由于铝的扩散形成杂质层p+层7。该p+层7具有抑制由p-n结的光伏效应所生成的载流子的再结合所致的损失的效果,有助于提高太阳能电池元件的转换效率。关于该BSF效果,例如专利文献1、专利文献2等公开的那样,通过使用含有铅的玻璃作为铝糊剂材料所含的玻璃粉,从而可获得更高的效果。
现有技术文献
专利文献
专利文献1:日本特开2007-59380号公报
专利文献2:日本特开2003-165744号公报
发明内容
发明要解决的问题
一般而言p+层的表面电阻和BSF效果相关,p+层的表面电阻越低,BSF效果越高,作为太阳能电池元件的转换效率越高。
前述含有铅成分的玻璃粉由于在铝糊剂材料这样的导电性糊剂中使用,因此可得到高BSF效果,并且也在使上述导电性糊剂为低熔点方面是重要成分,但是对人体、环境造成的危害较大。前述专利文献1以及专利文献2存在导电性糊剂中含有铅成分的问题。
因此,本发明的目的在于获得一种可用作形成半导体硅太阳能电池的电极的不含铅的导电性糊剂。
用于解决问题的方案
本发明为一种导电性糊剂,其特征在于,其为用于使用半导体硅基板的太阳能电池中的导电性糊剂,该导电性糊剂中包含的玻璃粉的组成为实质上不含铅成分,并且以质量%计含有5~15的SiO2、20~40的B2O3、0~10的Al2O3、30~45的ZnO、5~30的RO(选自MgO、CaO、SrO及BaO组成的组中的至少1种的总和)、0.1~6的R2O(选自Li2O、Na2O及K2O组成的组中的至少1种的总和)。
在采用使用含有铅的玻璃粉的导电性糊剂时p+层的表面电阻显示为20~30Ω/□左右,因而在使用本发明的导电性糊剂时的p+层的表面电阻优选为30Ω/□以下。该表面电阻越低,作为太阳能电池元件使用时转换效率越高。
本发明中,通过使玻璃粉中含有的R2O量增加,可使p+层的表面电阻成为比30Ω/□更低的值,但该R2O超过6质量%含有时,该R2O的碱成分变多而呈现出潮解性,因此本发明中该R2O为6质量%以下。
另外,本发明的前述玻璃粉的特征在于,其在30℃~300℃下的热膨胀系数为55×10-7~85×10-7/℃、软化点为550℃以上且650℃以下。另外,本发明中上述热膨胀系数是指线膨胀系数的意思。
发明的效果
根据本发明,可得到包含不含铅的玻璃粉的导电性糊剂。通过将本发明的导电性糊剂用作太阳能电池元件,可以得到高BSF效果。另外,可获得与半导体硅基板的良好密合性。进而,因为实质上不含铅成分,所以对人体、环境不造成危害。
附图说明
图1为普通的半导体硅太阳能电池单元的概略剖面图。
具体实施方式
本发明的导电性糊剂如下:其包含铝粉末和含有乙基纤维素、丙烯酸(酯)类树脂等粘合剂的有机赋形剂、以及玻璃粉,该玻璃粉为实质上不含铅成分,并且以质量%计含有5~15的SiO2、20~40的B2O3、0~10的Al2O3、30~45的ZnO、5~30的RO(选自MgO、CaO、SrO及BaO组成的组中的至少1种的总和)、0.1~6的R2O(选自Li2O、Na2O及K2O组成的组中的至少1种的总和)。
在本发明的玻璃粉中,SiO2是玻璃形成成分,通过使其与作为其它玻璃形成成分的B2O3共存而可形成稳定的玻璃,含有5~15%(质量%,下同)的SiO2。若超过15%,则玻璃的软化点上升,难以作为导电性糊剂来使用。更优选在7~13%的范围。
B2O3是玻璃形成成分,其使得玻璃容易熔融,抑制玻璃的热膨胀系数的过度上升,且在焙烧时对玻璃赋予流动性,并降低玻璃的介电常数,在玻璃中含有20~40%。低于20%则玻璃的流动性变得不充分从而有损烧结性,另一方面,超过40%则玻璃的稳定性降低。另外,更优选在25~35%的范围。
Al2O3是抑制玻璃的结晶化的成分。在玻璃中含有0~10%,超过10%,则玻璃的软化点上升,难以作为导电性糊剂来使用。
ZnO是降低玻璃的软化点的成分,在玻璃中含有30~45%。ZnO低于30%则不能发挥上述作用,超过45%时,玻璃变得不稳定易产生结晶。另外,优选在35~42%的范围。
RO(选自MgO、CaO、SrO及BaO组成的组中的至少1种的总和)是降低玻璃的软化点的成分,在玻璃中含有5~30%。低于5%则玻璃的软化点降低不充分而有损烧结性。另一方面,超过30%时,玻璃的热膨胀系数变得过高。更优选在10~27%的范围。
R2O(选自Li2O、Na2O、及K2O组成的组中的至少1种的总和)是降低玻璃的软化点、将热膨胀系数调整为适当范围的成分,以0.1~6%的范围含有。低于0.1%则玻璃的软化点降低不充分而有损烧结性。另一方面,超过6%时,则使热膨胀系数过度上升。更优选在2~6%的范围。需要说明的是,作为R2O优选至少包含K2O。
除此以外,也可添加一般的氧化物,如CuO、TiO2、In2O3、Bi2O3、SnO2、TeO2等。
通过实质上不含铅(以下有时记为PbO),从而能够对人体、环境均不造成影响。这里,实质上不含PbO是指,PbO在玻璃原料中为作为杂质混入的程度的量。例如,在低熔点玻璃中如果PbO在0.3%以下的范围内,就几乎没有上述危害,即几乎不存在对人体、环境的影响以及对绝缘特性等的影响,实质上不受PbO的影响。
通过使用前述玻璃粉,可得到在30℃~300℃下热膨胀系数为55×10-7~80×10-7/℃、软化点为550℃以上且650℃以下的导电性糊剂。热膨胀系数超过55×10-7~85×10-7/℃时,在电极形成时发生剥离、基板的翘曲等问题。优选在60×10-7~75×10-7/℃的范围。另外,软化点超过650℃时,因为焙烧时不能充分地流动,所以发生与半导体硅基板的密合性变差等问题。优选上述软化点为580℃以上且630℃以下。
本发明的导电性糊剂如上所述可用于太阳能电池元件。进一步,该导电性糊剂可在低温下焙烧,因而可以以使用了银、铝等布线图案的形成材料、各种电极等电子材料用基板的形式来使用。
实施例
以下,基于实施例进行说明。
(导电性糊剂)
首先,对于玻璃粉末,按照实施例中记载的特定组成的方式秤量各种无机原料并混合,制备原料母料。将该原料母料投入铂坩埚,在电加热炉内以1000~1300℃、1~2小时加热熔融,得到如表1的实施例1~5、表2的比较例1~4所示的组成的玻璃。将一部分玻璃流入模具中,成为块状,供于热物性(热膨胀系数、软化点)测定用。剩余的玻璃通过快速冷却双辊成形机形成片状,通过粉碎装置造粒为平均粒径为1~4μm、最大粒径低于10μm的粉末状。
需要说明的是,上述的软化点使用热分析装置TG-DTA(Rigaku Corporation制)测定。此外,上述的热膨胀系数根据使用热膨胀计以5℃/分钟升温时在30~300℃下的伸长量而求得线膨胀系数。
接着,在由α-松油醇和丁基卡必醇乙酸酯形成的糊状油(paste oil)中,以特定比例混合作为粘合剂的乙基纤维素和上述玻璃粉、及作为导电性粉末的铝粉末,制备粘度为500±50泊左右的导电性糊剂。
接着,准备p型半导体硅基板1,在其上部丝网印刷上述制备得到的导电性糊剂。将这些试验片利用140℃的干燥机进行10分钟干燥,接着,通过用电炉在800℃条件下焙烧1分钟,得到在p型半导体硅基板1上形成有铝电极层5和BSF层6的结构。
接着,为调查铝电极层5与p型半导体硅基板1的密合性,将修补胶带(Nichiban制)贴到铝电极层5上,目测评价剥离时的铝电极层5的剥落状态。
然后,将形成有铝电极层5的p型半导体硅基板1浸渍到氢氧化钠水溶液中,通过蚀刻铝电极层5和BSF层6而使p+层7露出到表面,利用4探针式表面电阻测定器测定p+层7的表面电阻。
(结果)
将无铅低熔点玻璃组成和各种试验结果示出在表中。
[表1]
[表2]
需要说明的是,表1及表2的粘接强度一栏中,A表示粘接强度良好、B表示粘接强度大体良好、C表示粘接强度不充分。
如表1中的实施例1~5所示,在本发明的组成范围内,软化点为550℃~650℃、具有适宜的热膨胀系数55×10-7~85×10-7/℃、与p型半导体硅基板1的密合性也良好。尤其是与太阳能电池元件的转换效率相关的p+层7的电阻值也为26Ω/□以下,可作为半导体硅太阳能电池用的导电性糊剂来使用。
另一方面,超出本发明的组成范围的表2中的比较例1~4,不能获得与p型半导体硅基板1的良好密合性,p+层7的电阻值高、或者熔解后玻璃显示出潮解性等,不适合作为半导体硅太阳能电池用的导电性糊剂使用。
附图标记说明
1 p型半导体硅基板
2 n型半导体硅层
3 抗反射膜
4 表面电极
5 铝电极层
6 BSF层
7 p+层
Claims (4)
1.一种导电性糊剂,其特征在于,其为用于使用半导体硅基板的太阳能电池中的导电性糊剂,该导电性糊剂中包含的玻璃粉的组成为实质上不含铅成分,并且以质量%计含有
5~15的SiO2、
20~40的B2O3、
0~10的Al2O3、
30~45的ZnO、
5~30的RO、
0.1~6的R2O,
其中RO是指选自MgO、CaO、SrO及BaO组成的组中的至少1种的总和,R2O是指选自Li2O、Na2O及K2O组成的组中的至少1种的总和。
2.根据权利要求1所述的导电性糊剂,其特征在于,所述玻璃粉在30℃~300℃下的热膨胀系数为55×10-7~85×10-7/℃、软化点为550℃以上且650℃以下。
3.一种太阳能电池元件,其特征在于,其使用权利要求1或权利要求2所述的导电性糊剂。
4.一种电子材料用基板,其特征在于,其使用权利要求1或权利要求2所述的导电性糊剂。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011004738 | 2011-01-13 | ||
JP2011-004738 | 2011-01-13 | ||
PCT/JP2011/080156 WO2012096128A1 (ja) | 2011-01-13 | 2011-12-27 | 導電性ペースト及び該導電性ペーストを用いた太陽電池素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103298759A true CN103298759A (zh) | 2013-09-11 |
CN103298759B CN103298759B (zh) | 2016-05-11 |
Family
ID=46507039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201180064818.4A Expired - Fee Related CN103298759B (zh) | 2011-01-13 | 2011-12-27 | 导电性糊剂及使用该导电性糊剂的太阳能电池元件 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5910509B2 (zh) |
KR (1) | KR101474677B1 (zh) |
CN (1) | CN103298759B (zh) |
TW (1) | TWI422547B (zh) |
WO (1) | WO2012096128A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107673601A (zh) * | 2017-08-28 | 2018-02-09 | 广州市儒兴科技开发有限公司 | 一种perc铝浆用玻璃粉及其制备方法 |
CN110550864A (zh) * | 2019-09-29 | 2019-12-10 | 长沙新材料产业研究院有限公司 | 一种低膨胀系数绝缘介质浆料及其制备方法 |
CN115895332A (zh) * | 2022-12-29 | 2023-04-04 | 湖南松井新材料股份有限公司 | 一种爽滑性低黑度玻璃高温油墨及其制备方法和应用 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6825948B2 (ja) * | 2017-03-17 | 2021-02-03 | 東洋アルミニウム株式会社 | 太陽電池用ペースト組成物 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001163635A (ja) * | 1999-12-06 | 2001-06-19 | Asahi Glass Co Ltd | 隔壁形成用無鉛低融点ガラスおよびガラスセラミックス組成物 |
JP2002326839A (ja) * | 2001-02-28 | 2002-11-12 | Nippon Electric Glass Co Ltd | プラズマディスプレイパネル用隔壁形成材料及びガラス組成物 |
CN1881621A (zh) * | 2005-06-07 | 2006-12-20 | E.I.内穆尔杜邦公司 | 铝厚膜组合物、电极、半导体器件及其制造方法 |
JP2007070196A (ja) * | 2005-09-09 | 2007-03-22 | Central Glass Co Ltd | 無鉛低融点ガラス |
US20100180934A1 (en) * | 2009-01-16 | 2010-07-22 | Hitachi Powdered Metals Co., Ltd. | Low softening point glass composition, bonding material using same and electronic parts |
CN101835720A (zh) * | 2007-10-24 | 2010-09-15 | 日本电气硝子株式会社 | 等离子体显示面板用电介质材料 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60318517T2 (de) * | 2002-04-24 | 2009-07-23 | Central Glass Co., Ltd., Ube | Bleifreies niedrigschmelzendes Glas |
CN101395723A (zh) * | 2006-03-07 | 2009-03-25 | 株式会社村田制作所 | 导电性糊及太阳电池 |
-
2011
- 2011-12-27 KR KR1020137018765A patent/KR101474677B1/ko active IP Right Grant
- 2011-12-27 JP JP2012552658A patent/JP5910509B2/ja not_active Expired - Fee Related
- 2011-12-27 CN CN201180064818.4A patent/CN103298759B/zh not_active Expired - Fee Related
- 2011-12-27 WO PCT/JP2011/080156 patent/WO2012096128A1/ja active Application Filing
-
2012
- 2012-01-03 TW TW101100208A patent/TWI422547B/zh not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001163635A (ja) * | 1999-12-06 | 2001-06-19 | Asahi Glass Co Ltd | 隔壁形成用無鉛低融点ガラスおよびガラスセラミックス組成物 |
JP2002326839A (ja) * | 2001-02-28 | 2002-11-12 | Nippon Electric Glass Co Ltd | プラズマディスプレイパネル用隔壁形成材料及びガラス組成物 |
CN1881621A (zh) * | 2005-06-07 | 2006-12-20 | E.I.内穆尔杜邦公司 | 铝厚膜组合物、电极、半导体器件及其制造方法 |
JP2007070196A (ja) * | 2005-09-09 | 2007-03-22 | Central Glass Co Ltd | 無鉛低融点ガラス |
CN101835720A (zh) * | 2007-10-24 | 2010-09-15 | 日本电气硝子株式会社 | 等离子体显示面板用电介质材料 |
US20100180934A1 (en) * | 2009-01-16 | 2010-07-22 | Hitachi Powdered Metals Co., Ltd. | Low softening point glass composition, bonding material using same and electronic parts |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107673601A (zh) * | 2017-08-28 | 2018-02-09 | 广州市儒兴科技开发有限公司 | 一种perc铝浆用玻璃粉及其制备方法 |
CN107673601B (zh) * | 2017-08-28 | 2019-10-18 | 广州市儒兴科技开发有限公司 | 一种perc铝浆用玻璃粉及其制备方法 |
CN110550864A (zh) * | 2019-09-29 | 2019-12-10 | 长沙新材料产业研究院有限公司 | 一种低膨胀系数绝缘介质浆料及其制备方法 |
CN110550864B (zh) * | 2019-09-29 | 2022-09-02 | 长沙新材料产业研究院有限公司 | 一种低膨胀系数绝缘介质浆料及其制备方法 |
CN115895332A (zh) * | 2022-12-29 | 2023-04-04 | 湖南松井新材料股份有限公司 | 一种爽滑性低黑度玻璃高温油墨及其制备方法和应用 |
CN115895332B (zh) * | 2022-12-29 | 2024-02-02 | 湖南松井新材料股份有限公司 | 一种爽滑性低黑度玻璃高温油墨及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
TWI422547B (zh) | 2014-01-11 |
TW201231430A (en) | 2012-08-01 |
KR101474677B1 (ko) | 2014-12-18 |
KR20130100369A (ko) | 2013-09-10 |
WO2012096128A1 (ja) | 2012-07-19 |
CN103298759B (zh) | 2016-05-11 |
JP5910509B2 (ja) | 2016-04-27 |
JPWO2012096128A1 (ja) | 2014-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102958862B (zh) | 低熔点玻璃组合物及使用其的导电性糊剂材料 | |
CN103314414B (zh) | 导电性糊剂及使用了该导电性糊剂的太阳能电池元件 | |
JP5416631B2 (ja) | アルミニウム電極配線用のガラス組成物と導電性ペースト、そのアルミニウム電極配線を具備する電子部品、及び、この電子部品の製造方法 | |
JP5272373B2 (ja) | 多結晶Si太陽電池 | |
EP1732137A2 (en) | Aluminum thick film composition(s), electrode(s), semiconductor device(s) and methods of making thereof | |
TWI460142B (zh) | Insulated with lead - free low - melting glass paste | |
JP2011035034A (ja) | 太陽電池電極用無鉛導電性組成物 | |
CN102762509B (zh) | 低熔点玻璃组合物及使用其的导电性糊剂材料 | |
CN103298759A (zh) | 导电性糊剂及使用该导电性糊剂的太阳能电池元件 | |
TW201306053A (zh) | 太陽電池用導電性糊組成物 | |
KR20140074415A (ko) | 태양전지 후면 전극의 제조 방법 및 이를 이용한 태양전지 소자 | |
KR20200123643A (ko) | 태양 전지 전극 형성용 유리 프릿 조성물, 및 이를 포함하는 페이스트 조성물 | |
JP2013189372A (ja) | 導電性ペースト材料 | |
JP2012140296A (ja) | 耐腐食性を有する無鉛低融点ガラス組成物 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20201227 |
|
CF01 | Termination of patent right due to non-payment of annual fee |