JP2012524397A - ナノワイヤを有する多接合光電池 - Google Patents
ナノワイヤを有する多接合光電池 Download PDFInfo
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- 239000002070 nanowire Substances 0.000 title claims abstract description 128
- 239000000758 substrate Substances 0.000 claims abstract description 90
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- 238000009792 diffusion process Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 12
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- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005468 ion implantation Methods 0.000 claims description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- -1 GaN Chemical class 0.000 description 1
- 229910005542 GaSb Inorganic materials 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
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- 229910052711 selenium Inorganic materials 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
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Abstract
Description
Claims (14)
- 光を電気エネルギーに変換する多接合光電池であって、
面(31)を有する基板(3)であって、第1PN接合が前記基板(3)内に形成されるように前記基板(3)の前記面(31)の領域(4)に不純物が添加された基板(3)と、
前記第1PN接合と直列に接続する第2PN接合がナノワイヤ(2)に形成されるように、前記不純物添加領域(4)が前記基板(3)内に位置する場所で前記基板(3)の前記面(31)に配置された前記ナノワイヤ(2)と
を備えることを特徴とする多接合光電池。 - 前記第2PN接合(12)は前記ナノワイヤ(3)内に形成されることを特徴とする請求項1に記載の多接合光電池。
- 前記不純物添加領域(4)はヘテロ接合、イオン注入、ドーパント拡散及びホモエピタキシのうちの何れか1つによって形成されることを特徴とする請求項1又は2に記載の多接合光電池。
- 前記ナノワイヤ(2)は前記不純物添加領域(4)に直接に接触していることを特徴とする請求項1乃至3の何れか1項に記載の多接合光電池。
- 前記ナノワイヤ(2)は前記不純物添加領域(4)から成長することを特徴とする請求項1乃至4の何れか1項に記載の多接合光電池。
- 前記ナノワイヤ(2)は前記不純物添加領域(4)とエピタキシャル関係にあることを特徴とする請求項1乃至5の何れか1項に記載の多接合光電池。
- 前記第1PN接合(11)と前記第2PN接合(12)との間に第3PN接合(13)が配置されることを特徴とする請求項1乃至6の何れか1項に記載の多接合光電池。
- 前記面(31)の法線方向(N)にあるテーパ形状のシェル(25´´)と前記ナノワイヤ(2)との間にPN接合(12´´)が形成されるように、前記ナノワイヤ(2)が前記シェル(25´´)によって取り囲まれていることを特徴とする請求項1乃至7の何れか1項に記載の多接合光電池。
- 前記基板(3)はシリコン又は不純物添加シリコンからなる半導体材料で生成されることを特徴とする請求項1乃至8の何れか1項に記載の多接合光電池。
- 前記基板(3)はゲルマニウム又は不純物添加ゲルマニウムからなる半導体材料で生成されることを特徴とする請求項1乃至9の何れか1項に記載の多接合光電池。
- 前記ナノワイヤ(2)はIII‐V族の半導体材料を含む半導体材料で生成されることを特徴とする請求項1乃至10の何れか1項に記載の多接合光電池。
- III‐V族の材料は前記不純物添加領域(4)を形成するための前記基板(3)へのドーパント原子の拡散源であることを特徴とする請求項1乃至11の何れか1項に記載の多接合光電池。
- 前記基板(3)の前記面が光源(30)に向かって配置されるように構成されることを特徴とする請求項1乃至12の何れか1項に記載の多接合光電池。
- 前記基板(3)の前記面(31)に複数の領域(4、4´´)を有し、前記複数の領域(4、4´´)が前記基板(3)内に別々の第1PN接合(11、11´´)を形成するように各領域に不純物が添加され、複数のナノワイヤ(2、2´´)が前記基板(3)の前記面(31)から成長し、各ナノワイヤ(2、2´´)が別々の第1PN接合(11、11´´)と直列に接続する第2PN接合(12、12´´)を形成するように各ナノワイヤ(2、2´´)が別々の不純物添加領域(4、4´´)の場所にある
ことを特徴とする請求項1乃至13の何れか1項に記載の多接合光電池。
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CN102484147B (zh) | 2015-11-25 |
US8952354B2 (en) | 2015-02-10 |
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