JP2021522697A - 切替え可能な吸収素子及び太陽電池 - Google Patents
切替え可能な吸収素子及び太陽電池 Download PDFInfo
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Abstract
【選択図】図1
Description
2 表面側電極
3 裏面側電極
4 吸収層
4a 第1層
4b 第2層
4c 第3層
5 表面側反射層
5a 第1層
5b 第2層
6 裏面側反射層
7 太陽電池
8 共振器
Claims (14)
- 切替え可能な吸収素子(1)であって、
吸収層(4)を含み、
前記切替え可能な吸収素子(1)は、少なくとも1つの表面側反射層(5)と少なくとも1つの裏面側反射層(6)を有し、前記吸収層(4)は、表面側反射層(5)と裏面側反射層(6)の間に配置され、表面側反射層(5)と裏面側反射層(6)の間の前記光路長は、少なくとも前記電池に垂直に入射する光に対して400nmより小さく、
前記反射層(5,6)のうち少なくとも1つは、切替え可能な反射率を有する、ことを特徴とする、切替え可能な吸収素子(1)。 - 表面側反射層(5)と裏面側反射層(6)の間の前記光路長は、少なくとも前記電池に垂直に入射する光に対して200nmより小さい、ことを特徴とする、請求項1に記載の切替え可能な吸収素子(1)。
- 表面側反射層(5)と裏面側反射層(6)の間の前記光路長は、少なくとも前記電池に垂直に入射する光に対して100nmより小さい、ことを特徴とする、請求項1に記載の切替え可能な吸収素子(1)。
- 前記反射層(5、6)の少なくとも1つにより反射される前記波長範囲において、前記吸収層(4)は、一度通過するときに少なくとも5%の吸収率を有する、ことを特徴とする、請求項1から3のいずれか一項に記載の切替え可能な吸収素子(1)。
- 前記反射層(5、6)の少なくとも1つにより反射される前記波長範囲において、前記吸収層(4)は、一度通過するときに少なくとも10%の吸収率を有する、ことを特徴とする、請求項1から4のいずれか一項に記載の切替え可能な吸収素子(1)。
- 前記反射層(5、6)の少なくとも1つにより反射される前記波長範囲において、前記吸収層(4)は、一度通過するときに、最大30%、好ましくは最大20%の吸収率を有する、ことを特徴とする、
請求項1から5のいずれか一項に記載の切替え可能な吸収素子(1)。 - 吸収層(4)と表面側反射層(5)の間の前記境界面は、少なくとも10%の反射率を有する、ことを特徴とする、請求項1から6のいずれか一項に記載の切替え可能な吸収素子(1)。
- 前記吸収層(4)は、アモルファスゲルマニウム及び/又は、それに基づく合金を有する、ことを特徴とする、請求項1から7のいずれか一項に記載の切替え可能な吸収素子(1)。
- 前記吸収層(4)は、遷移金属ジカルコゲナイド(TMDCs)及び/又は、他の金属ベースの半導体材料を有する、ことを特徴とする、請求項1から8のいずれか一項に記載の切替え可能な吸収素子(1)。
- 前記吸収層(4)は、切替え可能な吸収率を有する、ことを特徴とする、請求項1から9のいずれか一項に記載の切替え可能な吸収素子(1)。
- 太陽電池(7)であって、
前記太陽電池(7)は、請求項1から10のいずれか一項に記載の切替え可能な吸収素子(1)を有し、前記太陽電池(7)は、さらに、電荷キャリア選択性電極と、少なくとも1つの表面側電極(2)と、少なくとも1つの裏面側電極(3)と、表面側電極(2)と裏面側電極(3)の間に配置された前記吸収層(4)とを有し、前記吸収層(4)は、光電的に活性であるように設計された、ことを特徴とする、太陽電池(7)。 - 前記太陽電池(7)は、前記生成された電流を除去するさらなる電極を有する、ことを特徴とする、請求項11に記載の太陽電池(7)。
- 前記層(4、5,6)の少なくとも1つは、3次元に構造化されている、ことを特徴とする、請求項11又は12に記載の太陽電池(7)。
- 前記反射層(5,6)の少なくとも1つは、エレクトロクロミック材料に基づいており、この反射層(5、6)は前記太陽電池(7)と共通電極を有する、ことを特徴とする、請求項11から13のいずれか一項に記載の太陽電池(7)。
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