JP2015159336A - 太陽電池モジュールの製造方法 - Google Patents
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- 229910003437 indium oxide Inorganic materials 0.000 description 1
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- H—ELECTRICITY
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- 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 potential barriers
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- H01L31/0745—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 potential barriers the potential barriers being only of the PN heterojunction type comprising a AIVBIV heterojunction, e.g. Si/Ge, SiGe/Si or Si/SiC solar cells
- H01L31/0747—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 potential barriers the potential barriers being only of the PN heterojunction type comprising a AIVBIV heterojunction, e.g. Si/Ge, SiGe/Si or Si/SiC solar cells comprising a heterojunction of crystalline and amorphous materials, e.g. heterojunction with intrinsic thin layer
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- H—ELECTRICITY
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- 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
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
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- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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- H—ELECTRICITY
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- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/20—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials
- H01L31/208—Particular post-treatment of the devices, e.g. annealing, short-circuit elimination
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
【解決手段】 この発明は、非晶質シリコンと結晶系シリコンとを組合せることにより構成されたヘテロ半導体接合を有する太陽電池セル10と、複数の前記太陽電池セル10を接続するタブ14と、を備え、太陽電池セル10に高温加熱処理を施した後、太陽電池セル10にタブ14を半田付けし、複数の太陽電池セル10をタブ14により電気的に接続して太陽電池モジュールを製造する。
【選択図】 図2
Description
しかしながら、CVD法で形成した非晶質シリコン層を有する上記太陽電池セルなどにおいては、高温で長時間加熱すると出力特性が低下する虞がある。このため、非晶質シリコン層形成後の電極形成やラミネート工程はなるべくCVD工程の温度を超えないように管理されている。しかし、このような太陽電池セルにおいてもより以上の特性改善が望まれている。
このn型単結晶シリコン基板1上には、CVD法により水素を含有する実質的に真性な非晶質半導体薄膜層として、膜厚数nmから数10nm程度の実質的に真性のI型非晶質シリコン(a−SI:H)層2が形成されている。また、I型非晶質シリコン層2上には、水素を含有する荷電子制御された非晶質半導体薄膜層として、膜厚数nmから数10nm程度のP型非晶質シリコン層3が形成されている。
この押圧ピン24は、耐熱性を有し半田が付かないもので構成され、2以上の接続タブの垂直上方及び下方にそれぞれ対応して配置されている。
尚、使用したハロゲンランプは従来の半田溶着に用いるものより低出力の1000Wのものである。ランプ照射は、10秒間である。図10は、開放電圧特性、図11は、短絡電流、図12は、曲率因子(F.F.)を示している。
赤外線ランプとしては、2.5KWのものを用いた。効果のばらつきは大きかったが、ハロゲンランプと同様の特性向上は確認できた。図13は、各条件につきそれぞれ5個のサンプルを用意し、ランプ照射中も含めヒータ加熱を15秒間施した際の加熱温度と太陽電池セル特性と高温加熱処理を行わなかった太陽電池特性でそれぞれ規格化したものである。赤外線ランプの照射は、照射強度が大きいので、125V、3秒間と短時間照射を行った。図13より、ヒータ温度が290℃までの間は特性が向上していることが確認できた。但し、ヒータ温度が340℃にあると特性が急激に特性が低下している。また、ランプの印加電圧を150V、175Vと上げると太陽電池セル温度が上昇しすぎるため、特性は低下した。光照射により、太陽電池セルの温度がヒータの設定温度より短時間に上昇した効果と考えられる。なお、これらの太陽電池セルの温度は、ヒータ温度より上昇していることは確認しているが、短時間であり、正確な温度は測定できなかった。
例えば、ランプ照射とヒータの同時適用の場合は、図9に示すように、ヒータ加熱が低温の290℃であれば、ランプ照射はより長い方が最適値になり、ヒータ加熱が同じ300℃であってもランプの出力が1000Wより高出力の例えば2000Wのものを用いればランプ照射は短く数秒で十分である。更に、ランプ強度(出力)が強ければ、ヒータ加熱が無くても同様の効果が得られると考えられる。従って、実用的なタクトタイム(0より大きく60秒以下)で考えると、効果がある範囲はヒータ加熱無しからヒータ温度が400℃未満、ランプ出力が500W〜3000Wで照射時間は60秒以内になると考えられる。同様に、ヒータ加熱だけの場合は、加熱温度と加熱時間で効果があるため、最適な加熱温度は200℃〜350℃、加熱時間は60秒以内になると思われる。
5 集電極
14 接続タブ
21 ランプ
22 温風ヒータ
Claims (3)
- 複数の太陽電池セルを接続部材により電気的に接続して太陽電池モジュールを製造する方法であって、
前記太陽電池セルとして、CVD法で形成された非晶質シリコンと結晶系シリコンとを組み合わせることにより構成されたヘテロ半導体接合を有するものであって、前記ヘテロ半導体接合を有する半導体上に酸化物透明導電膜層が形成され、前記酸化物透明導電膜層上に集電極が形成されているものを用い、
加熱温度を所定温度に設定して前記太陽電池セルに加熱処理を施すと同時に全面に光照射処理を所定時間施した後、
前記太陽電池セルに前記接続部材を電気的に接続することを特徴とする、
太陽電池モジュールの製造方法。 - 前記所定温度は200℃以上350℃以下である、
請求項1に記載の太陽電池モジュールの製造方法。 - 前記所定時間は、2秒以上15秒以下である、請求項1または2に記載の太陽電池モジュールの製造方法。
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JP2017017363A (ja) * | 2005-06-16 | 2017-01-19 | パナソニックIpマネジメント株式会社 | 太陽電池モジュールの製造方法 |
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WO2005096396A1 (ja) * | 2004-03-31 | 2005-10-13 | Sanyo Electric Co., Ltd | 太陽電池の製造方法 |
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EP1734589A3 (en) | 2015-12-02 |
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JP2017017363A (ja) | 2017-01-19 |
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