JP5643294B2 - 太陽電池内の機能膜の局所的レーザ転化による局所的金属接触子 - Google Patents
太陽電池内の機能膜の局所的レーザ転化による局所的金属接触子 Download PDFInfo
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- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/20—Electrodes
- H10F77/206—Electrodes for devices having potential barriers
- H10F77/211—Electrodes for devices having potential barriers for photovoltaic cells
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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
- 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
- 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
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Description
本出願は、2009年4月22日に出願され、出願番号第61/171,491号を割り当てられた、「Localized Metal Contacts By Localized Laser Assisted Reduction Of Metal-Ions In Functional Films, And Solar Cell Applications Thereof」と題される先願の米国仮出願の利益を主張するものであり、2009年4月21日に出願され、出願番号第61/171,194号を割り当てられた、「High-Efficiency Solar Cell Structures and Methods of Manufacture」と題される同一出願者による先願の米国仮出願と、代理人整理番号第3304.001AWOとして出願され、出願番号第 号を割り当てられた、「High-Efficiency Solar Cell Structures and Methods of Manufacture」と題される同一出願者により同時出願された国際特許出願とに関する。これらの出願はそれぞれ、ここに、参照によりその全体として本明細書に組み込まれる。本発明の全態様が、上述の出願の任意の開示との組合せにおいて利用することができる。
Claims (13)
- 太陽電池の作製を容易にする方法であって、
基板を提供するステップと、
前記基板の上に半導体層を提供するステップであって、前記半導体層は、ある導電性タイプを有する導電性ドーパントを含むステップと、
前記半導体層の上に不活性化層を提供するステップであって、前記不活性化層は、金属窒化物または金属炭化物を含み、前記金属窒化物または金属炭化物の金属は、前記半導体層の導電性ドーパントと同じ導電性タイプであるステップと、
前記不活性化層中に少なくとも1の導電性接触子を形成するステップと、
を含み、
前記導電性接触子を形成するステップが、
酸化環境内において、前記不活性化層の少なくとも1つの区域にレーザを照射するステップであって、
前記照射により、前記少なくとも1つの区域中の前記金属窒化物または金属炭化物を導電性接触子に変換し、もって前記金属窒化物または金属炭化物を除去することによって前記少なくとも1の導電性接触子を形成し、かつ
前記照射により、前記少なくとも1の導電性接触子の下の前記半導体層内に、導電性領域をさらに形成し、
前記導電性領域は、少なくとも1の前記金属または前記導電性ドーパントを含み、
前記導電性領域と前記導電性ドーパントが、前記少なくとも1の導電性接触子から前記半導体層への電気的接続を容易にする、ステップを含むことを特徴とする方法。 - 前記不活性化層は、透過性層、透過性導電層、非反射層または誘電体層を含むことを特徴とする請求項1に記載の方法。
- 前記化合物は、透過性で絶縁性の二成分セラミックまたは他の金属の複合化合物を含むことを特徴とする請求項1に記載の方法。
- 前記酸化環境は、気体酸素を含むことを特徴とする請求項1に記載の方法。
- 前記導電性接触子をめっきするステップをさらに含むことを特徴とする前記請求項1に記載の方法。
- 前記照射により、前記半導体層内への、前記少なくとも1の区域内の前記金属の拡散を容易にすることを特徴とする請求項1に記載の方法。
- 熱処理するステップをさらに含む、請求項1に記載の方法であって、前記熱処理が、前記少なくとも1の区域から前記半導体層への前記金属の拡散を容易にする、方法。
- 請求項1〜7に記載の前記方法のいずれか一項により製造されることを特徴とする太陽電池構造部。
- 太陽電池であって、
基板と、
前記基板の上の半導体層であって、前記半導体層は、ある導電性タイプを有する導電性ドーパントを含む、半導体層と、
前記半導体層の上の不活性化層であって、前記不活性化層は、金属窒化物または金属炭化物を含み、前記金属窒化物または金属炭化物の金属は前記導電性ドーパントと同じ導電性タイプである、不活性化層と、
前記不活性化層中の1または複数の導電性接触子であって、前記導電性接触子は前記金属を含み、前記導電性接触子は、前記不活性化層の1または複数の区域中の前記金属窒化物または金属炭化物を、酸化環境内においてレーザ照射することによって前記1または複数の導電性接触子に変換し、もって前記1または複数の区域内の前記窒化物または炭化物を除去して形成された、導電性接触子と、
前記1または複数の導電性接触子の下の1または複数の導電性領域であって、前記1または複数の導電性領域は、少なくとも1の前記金属または前記導電性ドーパントを含む、導電性領域と、
を備え、
前記1または複数の導電性接触子は、前記1または複数の導電性領域を経て、前記半導体層に電気的接続を有する、太陽電池。 - 請求項9に記載の太陽電池であって、
前記1または複数の区域は、1または複数の第1の区域であり、
前記太陽電池はさらに、1または複数の導電性相互接続ラインを備え、
前記1または複数の導電性相互接続ラインは、1または複数の第2の区域内の不活性化層の金属窒化物または金属炭化物の酸化環境内におけるレーザ照射により形成されており、
前記1または複数の導電性相互接続ラインは、1または複数の前記導電性接触子の少なくとも1つと電気的接触を有し、かつ前記不活性化層によって前記半導体層から電気的に絶縁されている、太陽電池。 - 前記1または複数の導電性接触子のうちの少なくとも1の導電性接触子を覆って形成される金属めっきをさらに備えることを特徴とする請求項9に記載の太陽電池。
- 前記不活性化層は、透過性層、導電層、非反射被覆層または誘電体層のうちの少なくとも1の層でもあることを特徴とする請求項9に記載の太陽電池。
- 少なくとも請求項9の太陽電池を含むマルチ接合太陽電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US17149109P | 2009-04-22 | 2009-04-22 | |
US61/171,491 | 2009-04-22 | ||
PCT/US2010/031881 WO2010123980A1 (en) | 2009-04-22 | 2010-04-21 | Localized metal contacts by localized laser assisted conversion of functional films in solar cells |
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JP (2) | JP5643294B2 (ja) |
CN (2) | CN102439735B (ja) |
HK (1) | HK1169887A1 (ja) |
WO (1) | WO2010123980A1 (ja) |
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HK1169887A1 (en) | 2013-02-08 |
CN102439735B (zh) | 2015-04-08 |
EP2422377A4 (en) | 2013-12-04 |
JP2012525008A (ja) | 2012-10-18 |
US20120060908A1 (en) | 2012-03-15 |
EP2422377A1 (en) | 2012-02-29 |
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CN102439735A (zh) | 2012-05-02 |
WO2010123980A1 (en) | 2010-10-28 |
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