JP6564776B2 - 複合太陽電池、太陽電池モジュール、および集光太陽電池 - Google Patents
複合太陽電池、太陽電池モジュール、および集光太陽電池 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2004—Light-sensitive devices characterised by the electrolyte, e.g. comprising an organic electrolyte
- H01G9/2009—Solid electrolytes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
- H02S40/22—Light-reflecting or light-concentrating means
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K39/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic radiation-sensitive element covered by group H10K30/00
- H10K39/10—Organic photovoltaic [PV] modules; Arrays of single organic PV cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/50—Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3
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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
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- Y02E10/52—PV systems with concentrators
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- 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
- Y02E10/542—Dye sensitized solar cells
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Description
第一の光電変換素子10として、上記のペロブスカイトセルを用い、第二の光電変換素子20として上記の結晶シリコンセルを用い、図1に示す構成の複合太陽電池を作製した。波長選択反射膜51として、長波長側の分離波長λ1が700nm(実験例1−1)、640nm(実験例1−2)、600nm(実験例1−3)、550nm(実験例1−4)のものを用いた。波長選択反射膜としては、ガラス基板上に高屈折率材料と低屈折率材料とを交互に積層した多層蒸着膜を用いた。
以下では、波長選択反射膜等を用いてペロブスカイトセルに入射する光の波長範囲を限定した場合に、ペロブスカイトセルで生じる熱量を試算した。図9は、AM1.5Gの太陽光スペクトルと、ペロブスカイトセルの反射率スペクトルである。反射率は、ペロブスカイトセルの光入射面側から測定光を入射させて、分光光度計により測定した。
(熱エネルギー)=(照射エネルギー)−(発電量)−(反射光エネルギー)
算出結果を表3に示す。
ペロブスカイトセルの表面に、波長λ2よりも短波長の光を吸収するUVカットフィルタを配置し、ソーラーシミュレータを用いて、1sunの光を1時間照射した。照射前後での変換特性の変化を表4に示す。表4の数値は、光照射前の数値を1とする相対値で表されている。参考例2−4は、UVカットフィルタを用いずに、同様の試験を行った結果を示している。
実験例2では、長波長側の分離波長λ1が550nmであり、短波長側の分離波長λ2が異なる2種類の波長選択反射膜を用いて、実験例1と同様に複合太陽電池を作製した。作製した複合太陽電池の変換特性を、ソーラーシミュレータで測定後、上記参考例2と同様に、1sunの光を1時間照射し、照射後の変換特性を測定した。結果を表5に示す。なお、光照射後の変換特性の下段は、光照射前の数値を1とする相対値である。
20,30 光電変換素子
51,52,53,54 分光素子(波長選択反射膜)
58 分光素子(プリズム)
59 複合分光素子
60 筐体
70 集光素子
90 光平行化素子
Claims (10)
- 分光素子と;前記分光素子の第一方向に位置する第一の光電変換素子と;前記分光素子の第二方向に位置する第二の光電変換素子と、を備え、
前記第一の光電変換素子は、光吸収層として、一般式R1NH3M1X3(式中、R1はアルキル基であり、M1は2価の金属イオンであり、Xはハロゲンである)で表されるペロブスカイト型結晶構造の感光性材料を含有するペロブスカイト型光電変換素子であり、
前記第一の光電変換素子の光吸収層は、分光感度特性の長波長端に対応する光エネルギーがE1eVであり、
前記分光素子は、光入射側から照射された入射光のうち、(E1+0.9)eV以上のエネルギーを有する短波長光を前記第一方向へ優先的に射出し、(E1+0.3)eV以下のエネルギーを有する長波長光を前記第二方向へ優先的に射出するとともに、前記入射光のうち波長300nm〜320nmの範囲の紫外光の50%以上を前記第一の光電変換素子へ入射させないように構成されていることを特徴とする、複合太陽電池。 - 分光素子と;前記分光素子の第一方向に位置する第一の光電変換素子と;前記分光素子の第二方向に位置する第二の光電変換素子と、を備え、
前記第一の光電変換素子は、光吸収層として、一般式R1NH3M1X3(式中、R1はアルキル基であり、M1は2価の金属イオンであり、Xはハロゲンである)で表されるペロブスカイト型結晶構造の感光性材料を含有するペロブスカイト型光電変換素子であり、
前記第一の光電変換素子の光吸収層は、分光感度特性の長波長端が、750nm〜850nmであり、
前記第二の光電変換素子は、光吸収層のバンドギャップが前記第一の光電変換素子の光吸収層のバンドギャップよりも狭く、
前記分光素子は、光入射側から照射された入射光のうち、波長500nm以下の短波長光を前記第一方向へ優先的に射出し、波長650nm以上の長波長光を前記第二方向へ優先的に射出するとともに、前記入射光のうち波長300nm〜320nmの範囲の紫外光の50%以上を前記第一の光電変換素子へ入射させないように構成されていることを特徴とする、複合太陽電池。 - 前記第二の光電変換素子は、光吸収層が結晶シリコンである、請求項1または2に記載の複合太陽電池。
- 前記分光素子は、前記入射光のうち、波長300nm〜320nmの範囲の紫外光を、前記第二方向へ優先的に射出するように構成されている、請求項1〜3のいずれか1項に記載の複合太陽電池。
- 前記分光素子の第三方向に位置する第三の光電変換素子をさらに備え、
前記分光素子は、前記入射光のうち、波長300nm〜320nmの範囲の紫外光を、前記第三方向へ優先的に射出するように構成されている、請求項請求項1〜3のいずれか1項に記載の複合太陽電池。 - 前記分光素子は、波長選択反射膜を備える、請求項1〜5のいずれか1項に記載の複合太陽電池。
- 前記入射光が、前記波長選択反射膜の法線方向に対して40°以内の範囲で入射するように構成されている、請求項6に記載の複合太陽電池。
- 請求項1〜7のいずれか1項に記載の複合太陽電池を備え、
少なくとも前記第一の光電変換素子が封止されている、太陽電池モジュール。 - 請求項1〜7のいずれか1項に記載の複合太陽電池と、前記複合太陽電池の前記分光素子の光入射側に位置する集光素子とを備える、集光太陽電池。
- 前記分光素子と前記集光素子との間に、光平行化素子を備える、請求項9に記載の集光太陽電池。
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