JP2015230995A - 太陽電池受光面電極用ペースト、その製造方法、および太陽電池セル - Google Patents
太陽電池受光面電極用ペースト、その製造方法、および太陽電池セル Download PDFInfo
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- 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
- 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
- H01L31/04—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
-
- 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
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
【解決手段】 受光面電極の形成に用いられる導電性ペーストは、種々の組成の無鉛テルルガラスを用いて、これに種々の鉛含有添加物および高融点金属含有添加物を混合し、好ましくは仮焼やメカノケミカル法等の適宜の方法で担持させることから、ファイヤースルーで受光面電極を形成すると、適度に凹凸を有する浸食面が得られるので、電気的特性および接着強度を共に満足できる。また、受光面電極28中には高融点金属および鉛が含まれることから再結合が抑制されるため、LDE基板であっても高出力が得られる。
【選択図】なし
Description
Claims (16)
- 導電性粉末と、無鉛テルルガラスから成るガラスフリットと、ベヒクルとを含み、シリコン基板の一面上に塗布して焼成処理を施すことにより太陽電池の受光面電極をファイヤースルーによって形成するために用いられる太陽電池受光面電極用ペーストであって、
タングステン、モリブデン、およびクロムのうちの少なくとも1種の高融点金属と、
鉛含有添加物と
を、含むことを特徴とする太陽電池受光面電極用ペースト。 - 前記高融点金属は、それらのうちの少なくとも1種を含む高融点金属含有添加物として前記無鉛テルルガラスとは別に添加されたものである請求項1の太陽電池受光面電極用ペースト。
- 前記高融点金属含有添加物は、一部または全部が前記ガラスフリットに担持されているものである請求項2の太陽電池受光面電極用ペースト。
- 前記鉛含有添加物は、一部または全部が前記ガラスフリットに担持されているものである請求項1乃至請求項3の何れか1項に記載の太陽電池受光面電極用ペースト。
- 前記鉛含有添加物は、前記ガラスフリットと混合して酸化雰囲気中において500(℃)以下の温度で仮焼処理を施すことによりそのガラスフリットに担持されたものである請求項4の太陽電池受光面電極用ペースト。
- 前記鉛含有添加物は、一部が酸化物として残存するものである請求項5の太陽電池受光面電極用ペースト。
- 前記鉛含有添加物は、酸化物換算したPbO/ガラスフリット重量比で0.5〜1.0の範囲内の割合で含まれるものである請求項1乃至請求項6の何れか1項に記載の太陽電池受光面電極用ペースト。
- 前記高融点金属は、それぞれ酸化物換算した値で、ガラスフリットのWO3、MoO、Cr2O3以外の成分の合計質量Gに対して、(WO3/G)+2(MoO3/G)+4Cr2O3/Gが0.04〜0.40の範囲内の割合で少なくとも1種が含まれるものである請求項1乃至請求項7の何れか1項に記載の太陽電池受光面電極用ペースト。
- 前記無鉛テルルガラスは、酸化物換算で54〜80(mol%)のTeO2と、0.4〜18(mol%)のLi2Oとを含むものである請求項1乃至請求項8の何れか1項に記載の太陽電池受光面電極用ペースト。
- 前記無鉛テルルガラスは、酸化物換算で25(mol%)以下のBi2O3と、5(mol%)以下のCuOと、20(mol%)以下のSiO2とを含むものである請求項1乃至請求項9の何れか1項に記載の太陽電池受光面電極用ペースト。
- タングステン、モリブデン、およびクロムのうちの少なくとも1種の高融点金属を含む無鉛テルルガラスから成るガラスフリットに鉛含有添加物の一部または全部を担持させる鉛含有添加物担持工程と、
導電性粉末と、前記ガラスフリットと、前記鉛含有添加物と、ベヒクルとを混合する混合工程と
を、含むことを特徴とする太陽電池受光面電極用ペーストの製造方法。 - 前記鉛含有添加物担持工程は、前記ガラスフリットと前記鉛含有添加物の粉末とを混合して酸化雰囲気中において500(℃)以下の温度で仮焼処理を施すものである請求項11の太陽電池受光面電極用ペーストの製造方法。
- 無鉛テルルガラスから成るガラスフリットにタングステン、モリブデン、およびクロムのうちの少なくとも1種の高融点金属含有添加物の一部または全部を担持させる高融点金属含有添加物担持工程と、
導電性粉末と、前記ガラスフリットと、前記高融点金属含有添加物と、鉛含有添加物と、ベヒクルとを混合する混合工程と
を、含むことを特徴とする太陽電池受光面電極用ペーストの製造方法。 - 前記鉛含有添加物の一部または全部を前記ガラスフリットに担持させる鉛含有添加物担持工程を含むものである請求項13の太陽電池受光面電極用ペーストの製造方法。
- 前記鉛含有添加物担持工程は、前記ガラスフリットと前記鉛含有添加物の粉末とを混合して酸化雰囲気中において500(℃)以下の温度で仮焼処理を施すものである請求項14の太陽電池受光面電極用ペーストの製造方法。
- p型シリコン基板の一面に形成されたn+層上に反射防止膜を備え且つファイヤースルーによって受光面電極が設けられた太陽電池セルであって、
前記受光面電極は、前記請求項1乃至請求項10の何れか1項に記載の太陽電池受光面電極用ペーストから生成されたことを特徴とする太陽電池セル。
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JP2021035896A (ja) * | 2019-08-30 | 2021-03-04 | 昭和電工マテリアルズ株式会社 | 無鉛低融点ガラス組成物、低融点ガラス複合材料、ガラスペースト及び応用製品 |
CN114341070A (zh) * | 2019-08-30 | 2022-04-12 | 昭和电工材料株式会社 | 无铅低熔点玻璃组合物以及包含其的低熔点玻璃复合材料和低熔点玻璃糊剂以及使用它们的密封结构体、电气电子部件和涂装部件 |
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TWI638793B (zh) | 2017-04-28 | 2018-10-21 | 碩禾電子材料股份有限公司 | 用於太陽能電池的導電漿、太陽能電池及其製造方法以及太陽能電池模組 |
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