JP2012516050A - 電極構造、電極構造を有する素子、及び電極構造の形成方法 - Google Patents
電極構造、電極構造を有する素子、及び電極構造の形成方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 71
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- -1 oxygen radicals Chemical class 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 6
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- TUTOKIOKAWTABR-UHFFFAOYSA-N dimethylalumane Chemical compound C[AlH]C TUTOKIOKAWTABR-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
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- OXJUCLBTTSNHOF-UHFFFAOYSA-N 5-ethylcyclopenta-1,3-diene;ruthenium(2+) Chemical compound [Ru+2].CC[C-]1C=CC=C1.CC[C-]1C=CC=C1 OXJUCLBTTSNHOF-UHFFFAOYSA-N 0.000 claims description 2
- RXOOTVVRSACYPW-UHFFFAOYSA-N CC[Ti](CC)(CC)(CC)NC Chemical compound CC[Ti](CC)(CC)(CC)NC RXOOTVVRSACYPW-UHFFFAOYSA-N 0.000 claims description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 claims description 2
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- 230000008569 process Effects 0.000 description 28
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- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- GJBJZRBUIDLGND-UHFFFAOYSA-N CC(=C[Ru](C1C=CC=C1)CC)C=C(C)C Chemical compound CC(=C[Ru](C1C=CC=C1)CC)C=C(C)C GJBJZRBUIDLGND-UHFFFAOYSA-N 0.000 description 1
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- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 description 1
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- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
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- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
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- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
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- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 229910001952 rubidium oxide Inorganic materials 0.000 description 1
- CWBWCLMMHLCMAM-UHFFFAOYSA-M rubidium(1+);hydroxide Chemical compound [OH-].[Rb+].[Rb+] CWBWCLMMHLCMAM-UHFFFAOYSA-M 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- 238000001947 vapour-phase growth Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
Description
図6は、本発明の一実施例に係る電極構造を概略的に示す断面図である。
図7は、複合膜として形成された正孔生成層20を含む電極構造を概略的に示す断面図である。
図8の半導体接合10は、p型半導体層101及びn型半導体層102を含む。半導体接合10は、p型半導体層101とn型半導体層102とを互いに接触させたpn接合であるか、又はpin、pnp、pinip等、一以上のp型半導体層と一以上のn型半導体層とを含む任意の構造を有する接合である。
図7及び図12を参照すると、図12に示すALDサイクルが繰り返される。最初の数回のサイクルでは、原料前駆体としてNi(dmamb)2、Co(dmamb)2、Cu(dmamb)又は他の適切な物質からなる第1の原料前駆体が使用される。その結果、半導体接合10上に第1のp型酸化物半導体層201が形成される。サイクルの繰り返し回数は、第1のp型酸化物半導体層201が蒸着される厚さに応じて決定される。
Claims (27)
- n型半導体層及びp型半導体層を含む半導体接合と、
前記p型半導体層上の正孔生成層と、
前記正孔生成層上の透明電極層と
を含むことを特徴とする電極構造。 - 前記正孔生成層は、p型酸化物半導体を含むことを特徴とする請求項1記載の電極構造。
- 前記p型酸化物半導体は、NiO、CoO、Cu2O、CuAlO2及びCuInO2からなる群より選択されるいずれか1つ又はそれらの組合せを含むことを特徴とする請求項2記載の電極構造。
- 前記正孔生成層は、光活性物質をさらに含むことを特徴とする請求項2記載の電極構造。
- 前記光活性物質は、TiO2を含むことを特徴とする請求項4記載の電極構造。
- 前記p型酸化物半導体及び前記光活性物質間の比率は、前記正孔生成層がp型半導体の特性を有するように設定されることを特徴とする請求項4記載の電極構造。
- 前記正孔生成層は、前記p型酸化物半導体からなる一以上の層及び前記光活性物質からなる一以上の層を含むことを特徴とする請求項4記載の電極構造。
- 前記正孔生成層と前記透明電極層との間の導電層をさらに含むことを特徴とする請求項1記載の電極構造。
- 前記導電層は、Al、Ni、Co、Cu、Pt、Ir及びRuからなる群より選択されるいずれか1つ又はそれらの組合せを含むことを特徴とする請求項8記載の電極構造。
- 前記導電層の厚さは、0.1nm〜10nmであることを特徴とする請求項8記載の電極構造。
- 前記透明電極層は、縮退されたn型酸化物半導体を含むことを特徴とする請求項1記載の電極構造。
- 前記縮退されたn型酸化物半導体は、ITO、ZnO、ZnO:Al、SnO2、SnO2:F、TiO2、IrO2及びRuO2からなる群より選択されるいずれか1つ又はそれらの組合せを含むことを特徴とする請求項11記載の電極構造。
- 前記正孔生成層の厚さは、0.1nm〜10nmであることを特徴とする請求項1記載の電極構造。
- 電極構造を有する素子であって、
前記電極構造は、
n型半導体層及びp型半導体層を含む半導体接合と、
前記p型半導体層上の正孔生成層と、
前記正孔生成層上の透明電極層と
を含むことを特徴とする素子。 - n型半導体層及びp型半導体層を含む半導体接合を設けるステップと、
前記p型半導体層上に正孔生成層を形成するステップと、
前記正孔生成層上に透明電極層を形成するステップと
を含むことを特徴とする電極構造の形成方法。 - 前記正孔生成層及び/又は前記透明電極層は、原子層蒸着法によって形成されることを特徴とする請求項15記載の電極構造の形成方法。
- 前記正孔生成層を形成するステップは、
前記半導体接合を原料前駆体に露出させるステップと、
前記半導体接合を、酸素原子を含む反応前駆体に露出させるステップと
を含むことを特徴とする請求項16記載の電極構造の形成方法。 - 前記原料前駆体は、Ni(dmamb)2、Co(dmamb)2及びCu(dmamb)からなる群より選択されるいずれか1つ又はそれらの組合せを含むことを特徴とする請求項17記載の電極構造の形成方法。
- 前記半導体接合を原料前駆体に露出させるステップは、
前記半導体接合を、Ni(dmamb)2、Co(dmamb)2及びCu(dmamb)からなる群より選択されるいずれか1つ又はそれらの組合せを含む第1の原料前駆体に露出させるステップと、
前記半導体接合を、テトラジメチルアミノチタン、テトラジエチルアミノチタン及びテトラエチルメチルアミノチタンからなる群より選択されるいずれか1つ又はそれらの組合せを含む第2の原料前駆体に露出させるステップと
を含むことを特徴とする請求項17記載の電極構造の形成方法。 - 前記第1の原料前駆体に露出させるステップ及び前記第2の原料前駆体に露出させるステップは、同時に行われることを特徴とする請求項19記載の電極構造の形成方法。
- 前記半導体接合を原料前駆体に露出させるステップは、更に、
前記第1の原料前駆体に露出させるステップの後で、かつ前記第2の原料前駆体に露出させるステップの前に、前記半導体接合を反応前駆体に露出させるステップを含むことを特徴とする請求項19記載の電極構造の形成方法。 - 前記反応前駆体は、O2、N2O、H2O、O3、O2プラズマ、N2Oプラズマ、H2Oプラズマ及び酸素ラジカルからなる群より選択されるいずれか1つ又はそれらの組合せを含むことを特徴とする請求項17記載の電極構造の形成方法。
- 前記正孔生成層を形成するステップの後に、前記正孔生成層上に導電層を形成するステップをさらに含み、
前記透明電極層は、前記導電層上に形成されることを特徴とする請求項15記載の電極構造の形成方法。 - 前記導電層は、原子層蒸着法によって形成されることを特徴とする請求項23記載の電極構造の形成方法。
- 前記導電層を形成するステップは、
前記正孔生成層を原料前駆体に露出させるステップと、
前記正孔生成層を、水素原子を含む反応前駆体に露出させるステップと
を含むことを特徴とする請求項24記載の電極構造の形成方法。 - 前記原料前駆体は、トリメチルアルミニウム、ジメチルアルミニウムハイドライド、Ni(dmamb)2、Co(dmamb)2、Cu(dmamb)、ルテニウムシクロペンタジエニル、ビス(エチルシクロペンタジエニル)ルテニウム及び(2,4−ジメチルペンタジエニル)エチルシクロペンタジエニルルテニウムからなる群より選択されるいずれか1つ又はそれらの組合せを含むことを特徴とする請求項25記載の電極構造の形成方法。
- 前記反応前駆体は、H2プラズマ、NH3プラズマ及び水素ラジカルからなる群より選択されるいずれか1つ又はそれらの組合せを含むことを特徴とする請求項25記載の電極構造の形成方法。
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US8871628B2 (en) | 2014-10-28 |
US20100181566A1 (en) | 2010-07-22 |
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EP2389689B1 (en) | 2014-10-01 |
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