JP5220069B2 - 光起電力装置及びその製造方法 - Google Patents
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- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 2
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Classifications
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Description
当該方法は、
複数のトレンチが形成された基板が設けられる段階;
第1導電性物質を前記基板に対して一方の側から斜めに蒸着して前記基板の前記トレンチ各々の底面の一部、前記トレンチ各々の前記基板に対して他方の側の一側面、及び前記トレンチ各々を挟んで他方の側の隣接したトレンチ間の基板領域上に第1電極層を連続して形成する段階;
前記第1電極層より小さい電気抵抗を有して前記第1電極層の一部の領域と接触して前記第1電極層の上または下に位置するように補助電極層を前記基板の前記トレンチ各々の底面の一部及び前記他方の側の一側面及び前記他方の側の隣接したトレンチ間の領域に形成する段階;
前記第1電極層または前記補助電極層上の前記基板の全面に光電変換層を形成する段階;
前記光電変換層上に第2導電性物質を前記他方の側から斜めに蒸着して前記トレンチ各々の前記一方の側の一側面と、前記一方の側の隣接したトレンチ間の基板領域上に第2電極層を形成する段階;
前記第1電極層または前記補助電極層が露出するように前記第2電極層をマスクとして用いて前記トレンチ内部に形成された光電変換層をエッチングする段階;及び
前記領域のうち光によって電気が生成される、前記他方の側の隣接したトレンチ間の基板領域に形成された前記第1電極層または、前記補助電極層と、光によって電気が生成される、前記一方の側の隣接したトレンチ間の基板領域に形成された前記第2電極層が前記トレンチ内部で電気的に連結されるように第3導電性物質を前記第2電極層上に前記他方の側から斜めに蒸着して導電層を形成する段階を含む光起電力装置の製造方法。
当該方法は、
基板上に所定の厚さと幅を有した第1電極層を形成する段階;
前記第1電極層と接触されるように前記第1電極層より小さい電気抵抗を有した補助電極層を前記第1電極層の上または下に形成する段階;
前記第1電極層または、前記補助電極層上の領域と、前記隣接した第1電極層との間の領域に光電変換層を形成する段階;
前記光電変換層上に第2導電性物質を斜めに蒸着して第2電極層を形成する段階;
前記隣接した第2電極層の間の領域に位置する前記補助電極層が露出するように前記光電変換層をエッチングする段階;及び
前記隣接した第1電極層のうち一つの領域に形成された前記補助電極層と、他の一つの第1電極層領域に形成された前記第2電極層が電気的に連結されるように第3導電性物質を前記第2電極層上に斜めに蒸着して導電層を形成する段階を含む。
複数のトレンチが形成された基板;
前記トレンチ各々の底面の一部、前記トレンチの一方の側の一側面、及び前記トレンチを挟んで前記一方の側の隣接したトレンチ間の基板領域上に連続して形成された第1電極層;
前記第1電極層より小さい電気抵抗を有して前記第1電極層の一部と接触するように前記第1電極層の上または下に位置し、前記基板の前記トレンチ各々の底面の一部、前記トレンチ各々の前記一方の側の一側面、及び前記一方の側の隣接したトレンチ間の領域に形成された補助電極層;
前記第1電極層及び前記補助電極層上に位置する光電変換層;
前記光電変換層上に位置し、前記トレンチ各々を挟んで両側の隣接したトレンチ間の基板領域上及び前記トレンチ各々の他方の側の一側面に形成された第2電極層;及び
前記領域のうち光によって電気が生成される、前記トレンチを挟んで前記一方の側の隣接したトレンチ間の基板領域上に形成された前記第1電極層または前記補助電極層と、光によって電気が生成される、前記トレンチ各々を挟んで前記他方の側の隣接したトレンチ間の基板領域に形成された前記第2電極層が前記トレンチ内部で電気的に連結されるようにする導電層
を含む光起電力装置である。
基板;
前記基板上に位置して所定の厚さと幅を有した第1電極層;
前記第1電極層より小さい電気抵抗を有して、前記第1電極層と接触されるように前記第1電極層の上または下に位置する補助電極層;
前記第1電極層または、前記補助電極層上に位置し、前記隣接した第1電極層の間の領域に位置する光電変換層;
前記光電変換層上に位置する第2電極層;及び
前記隣接した第1電極層のうち一つの領域に形成された前記補助電極層と、他の一つの第1電極層領域に形成された第2電極層が電気的に連結されるようにする導電層、を含む光起電力装置である。
Claims (18)
- 複数のトレンチ(101;102;103;104;301;302;303;304;501;502)が形成された基板(100;300;500)が設けられる段階;
第1導電性物質を前記基板に対して一方の側から斜めに蒸着して前記基板の前記トレンチ各々の底面の一部、前記トレンチ各々の前記基板に対して他方の側の一側面、及び前記トレンチ各々を挟んで他方の側の隣接したトレンチ間の基板領域上に第1電極層(110;310;510)を連続して形成する段階;
前記第1電極層より小さい電気抵抗を有して前記第1電極層の一部の領域と接触して前記第1電極層の上または下に位置するように補助電極層(120;320;520)を前記基板の前記トレンチ各々の底面の一部及び前記他方の側の一側面及び前記他方の側の隣接したトレンチ間の領域に形成する段階;
前記第1電極層または前記補助電極層上の前記基板の全面に光電変換層(130;330;530)を形成する段階;
前記光電変換層上に第2導電性物質を前記他方の側から斜めに蒸着して前記トレンチ各々の前記一方の側の一側面と、前記一方の側の隣接したトレンチ間の基板領域上に第2電極層(140;340;540)を形成する段階;
前記第1電極層または前記補助電極層が露出するように前記第2電極層をマスクとして用いて前記トレンチ内部に形成された光電変換層をエッチングする段階;及び
前記領域のうち光によって電気が生成される、前記他方の側の隣接したトレンチ間の基板領域に形成された前記第1電極層または、前記補助電極層と、光によって電気が生成される、前記一方の側の隣接したトレンチ間の基板領域に形成された前記第2電極層が前記トレンチ内部で電気的に連結されるように第3導電性物質を前記第2電極層上に前記他方の側から斜めに蒸着して導電層(160;350;550)を形成する段階を含む光起電力装置の製造方法。 - 前記トレンチは、所定角度だけ傾いたことを特徴とする請求項1に記載の光起電力装置の製造方法。
- 前記光電変換層をエッチングした後、前記トレンチのうち一つのトレンチを絶縁物質(150)で埋める段階をさらに含むことを特徴とする請求項1または2に記載の光起電力装置の製造方法。
- 前記トレンチのうち一部の隣接したトレンチ間の間隔は、有効領域に該当する隣接トレンチ間の間隔より狭いことを特徴とする請求項1〜3のいずれか1項に記載の光起電力装置の製造方法。
- 前記隣接したトレンチ間に光が透過される孔(302;304)が位置し、
前記補助電極層は、前記孔の間に位置することを特徴とする請求項1〜4のいずれか1項に記載の光起電力装置の製造方法。 - 前記孔の幅に対する深みの比または、前記孔の直径に対する深みの比は、前記トレンチの幅に対する深みの比より大きいことを特徴とする請求項5に記載の光起電力装置の製造方法。
- 前記孔に形成された前記光電変換層のエッチングを通じて前記孔の底面が露出することを特徴とする請求項5または6に記載の光起電力装置の製造方法。
- 前記孔(302;304)は、前記基板を貫通することを特徴とする請求項5に記載の光起電力装置の製造方法。
- 短絡防止物質を前記光電変換層及び前記第2電極層上に前記一方の側から斜めに蒸着する段階をさらに含むことを特徴とする請求項1に記載の光起電力装置の製造方法。
- 複数のトレンチ(101;102;103;104;301;302;303;304;501;502)が形成された基板;
前記トレンチ各々の底面の一部、前記トレンチの一方の側の一側面、及び前記トレンチを挟んで前記一方の側の隣接したトレンチ間の基板領域上に連続して形成された第1電極層(110;310;510);
前記第1電極層より小さい電気抵抗を有して前記第1電極層の一部と接触するように前記第1電極層の上または下に位置し、前記基板の前記トレンチ各々の底面の一部、前記トレンチ各々の前記一方の側の一側面、及び前記一方の側の隣接したトレンチ間の領域に形成された補助電極層(120;320;520);
前記第1電極層及び前記補助電極層上に位置する光電変換層(130;330;530);
前記光電変換層上に位置し、前記トレンチ各々を挟んで両側の隣接したトレンチ間の基板領域上及び前記トレンチ各々の他方の側の一側面に形成された第2電極層(140;340;540);及び
前記領域のうち光によって電気が生成される、前記トレンチを挟んで前記一方の側の隣接したトレンチ間の基板領域上に形成された前記第1電極層または前記補助電極層と、光によって電気が生成される、前記トレンチ各々を挟んで前記他方の側の隣接したトレンチ間の基板領域に形成された前記第2電極層が前記トレンチ内部で電気的に連結されるようにする導電層(160;350;550)
を含む光起電力装置。 - 前記トレンチは、所定角度だけ傾いたことを特徴とする請求項10に記載の光起電力装置。
- 前記トレンチのうち一つのトレンチを埋める絶縁物質(150)をさらに含むことを特徴とする請求項10または11に記載の光起電力装置。
- 前記トレンチのうち一部の隣接したトレンチ間の間隔は、有効領域に該当する隣接トレンチ間の間隔より狭いことを特徴とする請求項10〜12のいずれか1項に記載の光起電力装置。
- 隣接した前記トレンチ間に光が透過される孔(302;304)が位置し、
前記補助電極層は、前記孔の間に位置することを特徴とする請求項10〜13のいずれか1項に記載の光起電力装置。 - 前記孔の幅に対する深みの比または、前記孔の直径に対する深みの比は、前記トレンチの幅に対する深みの比より大きいことを特徴とする請求項14に記載の光起電力装置。
- 前記孔の底面が露出することを特徴とする請求項14または15に記載の光起電力装置。
- 前記孔(302;304)は、前記基板を貫通することを特徴とする請求項14に記載の光起電力装置。
- 第2電極層の端を覆う短絡防止層(180;370;570)をさらに含むことを特徴とする請求項10〜17のいずれか1項に記載の光起電力装置。
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