JP2024038964A - 太陽電池および光起電力モジュール - Google Patents
太陽電池および光起電力モジュール Download PDFInfo
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 238000001237 Raman spectrum Methods 0.000 claims abstract description 19
- 238000002161 passivation Methods 0.000 claims description 92
- 238000009792 diffusion process Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 238000000137 annealing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 9
- 229920005591 polysilicon Polymers 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 229910021424 microcrystalline silicon Inorganic materials 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 22
- 239000010410 layer Substances 0.000 description 370
- 238000010521 absorption reaction Methods 0.000 description 32
- 239000000969 carrier Substances 0.000 description 28
- 230000006798 recombination Effects 0.000 description 27
- 238000005215 recombination Methods 0.000 description 27
- 239000013078 crystal Substances 0.000 description 26
- 230000001965 increasing effect Effects 0.000 description 23
- 230000003071 parasitic effect Effects 0.000 description 21
- 230000000694 effects Effects 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 229910052755 nonmetal Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000005686 electrostatic field Effects 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 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
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 238000006388 chemical passivation reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
比較例
。
Claims (20)
- 対向する表面及び裏面を有するベースと、
金属パターン領域と位置合わせされたベースの表面に位置しかつ前記ベースから離反する方向に順に設けられた、第1トンネル層及び、ドーピング元素の種類が前記ベースのドーピング元素の種類と同じである第1ドープ導電層と、
前記ベースの裏面に位置しかつ前記ベースから離反する方向に順に設けられた、第2トンネル層及び、ドーピング元素の種類が前記第1ドープ導電層のドーピング元素の種類と異なる第2ドープ導電層と、
を備え、
前記第1ドープ導電層のラマンスペクトルにおける第1ピーク付近の半値幅が、前記第2ドープ導電層のラマンスペクトルにおける前記第1ピーク付近の半値幅よりも大きくない、
ことを特徴とする太陽電池。 - 前記第1ピークは、520cm-1であり、
前記第1ドープ導電層の520cm-1付近における半値幅は、2cm-1~6cm-1である、
ことを特徴とする請求項1に記載の太陽電池。 - 前記第1ピークは、520cm-1であり、
前記第2ドープ導電層の520cm-1付近における半値幅は、2cm-1~8cm-1である、
ことを特徴とする請求項1に記載の太陽電池。 - 前記第1ドープ導電層の厚さは、前記第2ドープ導電層の厚さよりも大きくない、
ことを特徴とする請求項3に記載の太陽電池。 - 前記第1ドープ導電層の厚さは、20nm~300nmである、
ことを特徴とする請求項4に記載の太陽電池。 - 前記第1ドープ導電層は、第1ドーピング元素を含み、
前記第1ドーピング元素はアニールにより活性化され、活性化された第1ドーピング元素が得られ、
前記活性化された第1ドーピング元素の濃度は、1×1020atom/cm3~6×1020atom/cm3である、
ことを特徴とする請求項5に記載の太陽電池。 - 前記第2ドープ導電層の厚さは、50nm~500nmである、
ことを特徴とする請求項4に記載の太陽電池。 - 前記第2ドープ導電層は、第2ドーピング元素を含み、
前記第2ドーピング元素はアニールにより活性化され、活性化された第2ドーピング元素が得られ、
前記活性化された第2ドーピング元素の濃度は、4×1019atom/cm3~9×1019atom/cm3である、
ことを特徴とする請求項7に記載の太陽電池。 - 前記第1ドープ導電層の結晶粒サイズは、前記第2ドープ導電層の結晶粒サイズよりも大きい、
ことを特徴とする請求項1に記載の太陽電池。 - 前記ベースは、N型ベースであり、
前記第1ドープ導電層は、N型ドープ導電層であり、
前記第2ドープ導電層は、P型ドープ導電層である、
ことを特徴とする請求項1に記載の太陽電池。 - 前記第1ドープ導電層のドーピング元素は、リン元素を含み、
前記第2ドープ導電層のドーピング元素は、ホウ素元素を含む、
ことを特徴とする請求項9に記載の太陽電池。 - 前記第1ドープ導電層および前記第2ドープ導電層の材料は、炭化ケイ素、微結晶シリコン、またはポリシリコンの少なくとも一つを含む、
ことを特徴とする請求項9に記載の太陽電池。 - 第1パッシベーション層をさらに備え、
前記第1パッシベーション層の第1部分が、前記第1ドープ導電層の前記ベースから離れた面に位置し、前記第1パッシベーシヨン層の第2部分が、非金属パターン領域と位置合わせされた表面に位置する、
ことを特徴とする請求項1に記載の太陽電池。 - 前記第1パッシベーシヨン層の第1部分の頂面と、前記第1パッシベーシヨン層の第2部分の頂面とは面一ではない、
ことを特徴とする請求項13に記載の太陽電池。 - 前記第1パッシベーション層の材料は、酸化シリコン、酸化アルミニウム、窒化シリコン、または酸窒化シリコンのうちの少なくとも一つである、
ことを特徴とする請求項13に記載の太陽電池。 - 前記金属パターン領域上に設けられ、前記第1ドープ導電層と電気的に接続された第1電極をさらに備える、
ことを特徴とする請求項1に記載の太陽電池。 - 前記金属パターン領域と位置合わせされた前記ベース内に位置し、頂部が前記第1トンネル層と接触し、ドーピング元素の濃度が前記ベースのドーピング元素の濃度よりも大きい拡散エリアをさらに備える、
ことを特徴とする請求項1に記載の太陽電池。 - 第2ドープ導電層のベースから離れた面に位置する第2パッシベーション層をさらに備える、
ことを特徴とする請求項1に記載の太陽電池。 - ベースの裏面に位置し、前記第2ドープ導電層と電気的に接触している第2電極をさらに備える、
ことを特徴とする請求項1に記載の太陽電池。 - 請求項1~19のいずれか1項に記載の太陽電池を複数接続してなるセルストリングと、
前記セルストリングの表面を覆う封止層と、
前記封止層の前記セルストリングから離れた面を覆うカバープレートと、を備える、
ことを特徴とする光起電力モジュール。
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