JP6670138B2 - 光電変換装置およびその製造方法 - Google Patents
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
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- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- NQMRYBIKMRVZLB-UHFFFAOYSA-N methylamine hydrochloride Chemical compound [Cl-].[NH3+]C NQMRYBIKMRVZLB-UHFFFAOYSA-N 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
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- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
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- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Description
図1Aおよび図1Bは、それぞれ、本発明の実施形態に係る光電変換装置の模式的断面図である。これらの図では、光電変換装置の受光面側を判別しやすいように、光遮蔽性の電極にハッチングが付されている。透明電極2が配置されている側が受光面であり、ハッチングが付された裏面電極5が配置されている側が裏面側(受光面と反対側)である。後述の図3においても同様である。
正孔輸送層側のBr含有量が大きいペロブスカイト光吸収層を有する光電変換ユニットをトップセルとして、ボトムセルとしての他の光電変換ユニット(ボトム光電変換ユニット)と積層することにより、多接合光電変換装置(タンデム型光電変換装置)を形成することもできる。ペロブスカイト型結晶材料は、波長800nmよりも短波長側に分光感度特性を有しており、800nmよりも長波長側の赤外光をほとんど吸収しない。ペロブスカイト型結晶材料よりもバンドギャップの狭いボトム光吸収層を備えるボトムセルと積層してタンデム構造とすることにより、長波長光を利用して、太陽電池をさらに高効率化できる。
11,12 基板
2 透明電極
3,30 ペロブスカイト光電変換ユニット(トップセル)
31 正孔輸送層
32 ペロブスカイト光吸収層
33 電子輸送層
4 ヘテロ接合シリコン光電変換ユニット(ボトムセル)
41 p型シリコン系薄膜
42 単結晶シリコン基板(ボトム光吸収層)
43 n型シリコン系薄膜
5 裏面電極
7 中間層
Claims (10)
- 受光面側から、正孔輸送層、光吸収層および電子輸送層を有し、前記光吸収層としてペロブスカイト型結晶材料を含有するペロブスカイト光電変換ユニットを含む光電変換装置であって、
前記ペロブスカイト型結晶材料は、一般式RNH3MX3またはHC(NH2)2MX3(式中、Rはアルキル基であり、Mは2価の金属イオンであり、Xはハロゲンである)で表される感光性材料であり、
前記光吸収層は、前記ペロブスカイト型結晶材料のハロゲンXとしてBrを含み、かつ正孔輸送層側に、光吸収層の膜厚方向の全体の平均よりもBr含有量が大きい領域を有する、光電変換装置。 - 前記正孔輸送層は、膜厚が0.1〜100nmである、請求項1に記載の光電変換装置。
- 前記光吸収層は、前記Br含有量が、正孔輸送層から電子輸送層にかけて、単調減少している、請求項1または2に記載の光電変換装置。
- 前記光吸収層は、膜厚方向における電子親和力の最大値と最小値との差が0.3〜1eVである、請求項1〜3のいずれか1項に記載の光電変換装置。
- 前記光吸収層は、電子輸送層側界面における電子親和力が、正孔輸送層側界面における電子親和力よりも、0.3eV以上大きい、請求項4に記載の光電変換装置。
- 前記ペロブスカイト光電変換ユニットの受光面と反対側に、前記光吸収層よりも狭バンドギャップのボトム光吸収層を含むボトム光電変換ユニットを備える、請求項1〜5のいずれか1項に記載の光電変換装置。
- 前記ボトム光吸収層が結晶シリコンである、請求項6に記載の光電変換装置。
- 前記ペロブスカイト光電変換ユニットの前記光吸収層は、膜厚方向におけるバンドギャップの最小値が1.55〜1.75eVである、請求項7に記載の光電変換装置。
- 請求項1〜8のいずれか1項に記載の光電変換装置の製造方法であって、
前記ペロブスカイト光電変換ユニットの前記光吸収層は、膜厚方向の少なくとも一部が真空蒸着により形成される、光電変換装置の製造方法。 - 前記ペロブスカイト光電変換ユニットの前記光吸収層は、膜厚方向のBr含有量が連続的に変化するように共蒸着比を変化させながら真空蒸着により形成される、請求項9に記載の光電変換装置の製造方法。
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JP2019145621A (ja) * | 2018-02-19 | 2019-08-29 | 公立大学法人 滋賀県立大学 | 太陽電池およびその太陽電池の製造方法 |
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