JP7035205B2 - 光電変換素子および光電変換素子の製造方法 - Google Patents
光電変換素子および光電変換素子の製造方法 Download PDFInfo
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- JP7035205B2 JP7035205B2 JP2020542349A JP2020542349A JP7035205B2 JP 7035205 B2 JP7035205 B2 JP 7035205B2 JP 2020542349 A JP2020542349 A JP 2020542349A JP 2020542349 A JP2020542349 A JP 2020542349A JP 7035205 B2 JP7035205 B2 JP 7035205B2
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- H01G9/2009—Solid electrolytes
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H01G9/2095—Light-sensitive devices comprising a flexible sustrate
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/30—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- 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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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H10K30/80—Constructional details
- H10K30/88—Passivation; Containers; Encapsulations
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H10K39/12—Electrical configurations of PV cells, e.g. series connections or parallel connections
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Description
組成式:(CH3NH3)0.5Cs0.5Pb0.5Sn0.5I1.5Br1.5
t=(Aサイトイオン半径+Xサイトイオン半径)/{21/2×(Bサイトイオン半径+Xサイトイオン半径)}
R1=X1/B1
R2=X2/B2
R1:R2=3:χ
χ=3R2/R1
α:χ=1:3
α=χ/3
χ=3X2/B2/(X1/B1)
厚さが125μmのポリエチレンナフタレート(PEN)基板上に、基板電極として厚さが150nmのITO膜を複数形成した。ITO膜は、光電変換部の設置数に対応させて8個形成した。すなわち、8直列のモジュールに対応するように形成した。次に、基板電極側の中間層としてポリ(3,4-エチレンジオキシチオフェン)/ポリ(4-スチレンスルホン酸)(PEDOT/PSS)を形成した。PEDOT・PSSは、ヘレウス(Heraeus)社製のClevios AI4083を用い、メニスカス塗布装置を用いて膜を形成した。
第2のステップにおいてMAIの固形分濃度を0.4M(モーラー)に上げたこと以外は、実施例1と同様にして光電変換素子モジュールを作製した。
第2のステップにおいてMAIの固形分濃度を0.42M(モーラー)に上げたこと以外は、実施例1や2と同様にして光電変換素子モジュールを作製した。
第2のステップにおいてMAIの固形分濃度を0.5M(モーラー)にさらに上げたこと以外は、実施例1~3と同様にして光電変換素子モジュールを作製した。
第2のステップにおいてMAIの固形分濃度を0.6M(モーラー)にさらに上げたこと以外は、実施例1~4と同様にして光電変換素子モジュールを作製した。
ペロブスカイト化合物層の塗布方法をメニスカス塗布からスピンコートに変えたことと、MAI固形分濃度を0.05Mまで下げたこと以外は実施例1~4および比較例1と同様にして光電変換素子モジュールを作製した。
MAI固形分濃度を0.2Mまで上げたこと以外は比較例2と同様にして光電変換素子モジュールを作製した。
MAI固形分濃度を0.3、0.4、0.5Mに変化させたこと以外は比較例2や実施例5と同様にして3種類の光電変換素子モジュールを作製した。
Claims (7)
- 基板と、
前記基板上に配置された第1の基板電極と、前記第1の基板電極上に配置された第1の活性層と、前記第1の活性層上に配置された第1の対向電極と、を備える第1の光電変換部と、
前記基板上に前記第1の基板電極と隣接して配置され、かつ前記第1の基板電極と分離された第2の基板電極と、前記第2の基板電極上に配置された第2の活性層と、前記第2の活性層上に配置された第2の対向電極と、を備える第2の光電変換部と、
前記第2の活性層を表面から貫通して前記第2の基板電極の表面を前記第2の活性層から露出させる溝と、前記溝に埋め込まれた前記第1の対向電極の一部からなる導電部と、を備え、前記導電部を介して前記第1の対向電極と前記第2の基板電極とを電気的に接続する接続部と、
を具備する光電変換素子であって、
前記第2の活性層は、組成式:AαBXχにより表され、Aは一価の陽イオンであり、Bは二価の陽イオンであり、Xは一価のハロゲンイオンであり、
前記第2の活性層は、0.95≦α、かつ2.95≦χを満たす第1の化合物を含む第1の化合物層と、前記第1の化合物層と前記第2の基板電極との間に配置され、0<α<0.95、かつ2<χ<2.95を満たす第2の化合物を含む第2の化合物層と、を有し、
前記導電部は、前記第2の化合物層を貫通して前記第2の基板電極に電気的に接続される、光電変換素子。 - 前記第2の化合物は、0.2<α<0.4、かつ2.2<χ<2.4を満たす、請求項1記載の光電変換素子。
- 前記基板は、ポリエチレン、ポリエチレンテレフタレート、ポリエチレンナフタレート、ポリイミド、ポリアミド、ポリアミドイミド、液晶ポリマーからなる群より選ばれる少なくとも1つの有機材料を含む、請求項1または請求項2記載の光電変換素子。
- 前記第2の基板電極は、酸化インジウム、酸化亜鉛、酸化錫、酸化インジウム錫、フッ素ドープ酸化錫、ガリウムドープ酸化亜鉛、アルミニウムドープ酸化亜鉛、インジウム-亜鉛酸化物、およびインジウム-ガリウム-亜鉛酸化物からなる群より選ばれる少なくとも1つの導電性金属酸化物を含む、請求項1ないし請求項3のいずれか一項記載の光電変換素子。
- 前記第1の光電変換部は、前記第1の活性層と前記第1の基板電極との間に配置された第1の中間層を備え、
前記第2の光電変換部は、前記第2の活性層と前記第2の基板電極との間に配置された第2の中間層を備える、請求項1ないし請求項4のいずれか一項記載の光電変換素子。 - 基板上に、第1および第2の基板電極を形成する工程と、
前記第1および第2の基板電極上に第1および第2の活性層をそれぞれ形成する工程と、
前記第2の活性層を表面から貫通して前記第2の基板電極の表面を第2の活性層から露出させる溝を形成する工程と、
前記第1および第2の活性層上に第1および第2の対向電極をそれぞれ形成するとともに、前記溝に埋め込まれた前記第1の対向電極の一部からなる導電部を形成して前記第1の対向電極と前記第2の基板電極とを電気的に接続する工程と、
を具備する光電変換素子の製造方法であって、
前記第2の活性層は、組成式:AαBXχにより表され、Aは一価の陽イオンであり、Bは二価の陽イオンであり、Xは一価のハロゲンイオンであり、
前記第2の活性層は、0.95≦α、かつ2.95≦χを満たす第1の化合物を含む第1の化合物層と、前記第1の化合物層と前記第2の基板電極との間に配置され、0<α<0.95、かつ2<χ<2.95を満たす第2の化合物を含む第2の化合物層と、を有し、
前記導電部は、前記第2の化合物層を貫通して前記第2の基板電極に電気的に接続される、
光電変換素子の製造方法。 - 前記第2の化合物は、0.2<α<0.4、かつ2.2<χ<2.4を満たす、請求項6記載の光電変換素子の製造方法。
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