JP7170998B2 - ペロブスカイトナノ粒子、発光層、発光素子及び太陽電池 - Google Patents
ペロブスカイトナノ粒子、発光層、発光素子及び太陽電池 Download PDFInfo
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- JP7170998B2 JP7170998B2 JP2020156786A JP2020156786A JP7170998B2 JP 7170998 B2 JP7170998 B2 JP 7170998B2 JP 2020156786 A JP2020156786 A JP 2020156786A JP 2020156786 A JP2020156786 A JP 2020156786A JP 7170998 B2 JP7170998 B2 JP 7170998B2
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- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Description
half maximum(FWHM)≒20nm)を持っているため、形成される。
contents)によって超導電性(superconduction)または絶縁(insulating)特性を有することができる。
本発明の一実施例による有機無機ハイブリッドペロブスカイト発光素子用発光層の製造方法について説明する。
process)において問題となる基板敏感性(substrate sensitivity)、大面積アセンブリ(large-area assembly)及びレイヤバイレイヤ(layer-by-layer)積層工程の困難を解決することができる。
layer deposition:ALD)及び分子線エピタキシー蒸着(molecular beam epitaxy:MBE)などを使用することができる。
blade coating)、スクリーン印刷法(Screen printing)、ディップコーティング法(Dip coating)、グラビア印刷法(Gravure-printing)、リバースオフセット印刷法(Reverse-offset
printing)、物理的転写法(Physical transfer method)、スプレーコーティング法(Spray Coating)、化学気相蒸着法(Chemical vapor deposition)、または熱蒸着(Thermal
evaporation method)工程を使用することができる。
本発明の一実施例による有機無機ペロブスカイトナノ結晶構造を含む有機無機ペロブスカイトナノ粒子を含む溶液を形成する。逆ナノ-エマルジョン法によって形成する。
bromide、CH3(CH2)17NH3Br)を使用した。
efficiency)は0.02cd/Aであった。
film)に紫外線を照射して発光光を撮影した蛍光画像である。
film)の光発光マトリックスを低温(70K)にて撮影した画像であり、図16(b)は比較例1による薄膜型の有機無機ハイブリッドペロブスカイト(OIP film)の光発光マトリックスを常温(room temperature)にて撮った画像である。
20:第1電極
30:励起子バッファー層
31:導電層
32:表面バッファー層
40:発光層
50:第2電極
Claims (17)
- ABX3、A2BX 4 又はAn-1BnX3n+1の構造(nは2から6の間の整数であり、前記Aは有機アンモニウム物質又はアルカリ金属であり、前記Bは金属物質であり、前記Xはハロゲン元素である)を有するペロブスカイトナノ結晶と、
前記ペロブスカイトナノ結晶を囲むアルキルハライド界面活性剤又はカルボキシ基界面活性剤由来の複数の有機リガンドと、を備え、
前記ペロブスカイトナノ結晶のサイズは10nmから300nmであり、
前記ペロブスカイトナノ結晶は、サイズ分布が色純度を劣化させる量子ドットとは異なり、量子サイズ効果ではなく固有の結晶構造それ自体により発光する、ペロブスカイトナノ粒子。 - 前記Aは(CH3NH3)n、((CxH2x+1)nNH3)2(CH3NH3)n、Cs、(CnH2n+1NH3)2、(CF3NH3)、(CF3NH3)n、((CxF2x+1)nNH3)2(CF3NH3)n、((CxF2x+1)nNH3)2または(CnF2n+1NH3)2(nは1以上の整数であり、xは1以上の整数である)である、請求項1に記載のペロブスカイトナノ粒子。
- 前記有機リガンドは、トリオクチルホスフィン(TOP)又はトリオクチルホスフィンオキシド(TOPO)で置換される、請求項1に記載のペロブスカイトナノ粒子。
- 前記ペロブスカイトナノ結晶を囲む前記有機リガンドの一部は、前記TOP又は前記TOPOで置換される、請求項3に記載のペロブスカイトナノ粒子。
- 発光層塗布用部材と、
前記発光層塗布用部材上に配置され、ペロブスカイトナノ粒子を含む第1薄膜と、を備え、
前記ペロブスカイトナノ粒子は、ABX3、A2BX 4 又はAn-1BnX3n+1の構造(nは2から6の間の整数であり、前記Aは有機アンモニウム物質又はアルカリ金属であり、前記Bは金属物質であり、前記Xはハロゲン元素である)を有するペロブスカイトナノ結晶と、
前記ペロブスカイトナノ結晶を囲むアルキルハライド界面活性剤又はカルボキシ基界面活性剤由来の複数の有機リガンドと、を含み、
前記ペロブスカイトナノ結晶のサイズは10nmから300nmであり、
前記ペロブスカイトナノ結晶は、サイズ分布が色純度を劣化させる量子ドットとは異なり、量子サイズ効果ではなく固有の結晶構造それ自体により発光する、発光層。 - 前記有機リガンドは、トリオクチルホスフィン(TOP)又はトリオクチルホスフィンオキシド(TOPO)で置換される、請求項5に記載の発光層。
- 前記ペロブスカイトナノ結晶を囲む前記有機リガンドの一部は、前記TOP又は前記TOPOで置換される、請求項6に記載の発光層。
- 前記発光層は、前記発光層塗布用部材及び前記第1薄膜の間、又は前記第1薄膜上に配置された有機無機ペロブスカイトナノ結晶構造を有する有機無機ペロブスカイトマイクロ粒子をさらに含む、請求項5に記載の発光層。
- 発光素子であって、該発光素子は、
基板上に配置された第1電極と、
前記第1電極上に配置され、導電性物質及び前記導電性物質より低い表面エネルギーを有するフッ素系物質を含む励起子バッファー層と、
前記励起子バッファー層上に配置され、ペロブスカイトナノ粒子を含む発光層と、
前記発光層上に配置された第2電極と、を含み、
前記ペロブスカイトナノ粒子は、ABX 3 、A 2 BX 4 又はA n-1 B n X 3n+1 の構造(nは2から6の間の整数であり、前記Aは有機アンモニウム物質又はアルカリ金属であり、前記Bは金属物質であり、前記Xはハロゲン元素である)を有するペロブスカイトナノ結晶と、
前記ペロブスカイトナノ結晶を囲むアルキルハライド界面活性剤又はカルボキシ基界面活性剤由来の複数の有機リガンドと、を含み、
前記ペロブスカイトナノ結晶のサイズは10nmから300nmであり、
前記ペロブスカイトナノ結晶は、サイズ分布が色純度を劣化させる量子ドットとは異なり、量子サイズ効果ではなく固有の結晶構造それ自体により発光する、発光素子。 - 前記励起子バッファー層は、導電性物質を含む導電層と、前記導電層上に配置され、前記フッ素系物質を含む表面バッファー層と、を含む、請求項9に記載の発光素子。
- 前記有機リガンドは、トリオクチルホスフィン(TOP)又はトリオクチルホスフィンオキシド(TOPO)で置換される、請求項9に記載の発光素子。
- 前記ペロブスカイトナノ結晶を囲む前記有機リガンドの一部は、前記TOP又は前記TOPOで置換される、請求項11に記載の発光素子。
- ペロブスカイトナノ粒子を含む光活性層を備え、
前記ペロブスカイトナノ粒子は、ABX3、A2BX 4 又はAn-1BnX3n+1の構造(nは2から6の間の整数であり、前記Aは有機アンモニウム物質又はアルカリ金属であり、前記Bは金属物質であり、前記Xはハロゲン元素である)を有するペロブスカイトナノ結晶と、
前記ペロブスカイトナノ結晶を囲むアルキルハライド界面活性剤又はカルボキシ基界面活性剤由来の複数の有機リガンドと、を含み、
前記ペロブスカイトナノ結晶のサイズは10nmから300nmであり、
前記ペロブスカイトナノ結晶は、サイズ分布が色純度を劣化させる量子ドットとは異なり、量子サイズ効果ではなく固有の結晶構造それ自体により発光する、太陽電池。 - 前記Aは(CH3NH3)n、((CxH2x+1)nNH3)2(CH3NH3)n、Cs、(CnH2n+1NH3)2、(CF3NH3)、(CF3NH3)n、((CxF2x+1)nNH3)2(CF3NH3)n、((CxF2x+1)nNH3)2または(CnF2n+1NH3)2(nは1以上の整数であり、xは1以上の整数である)である、請求項13に記載の太陽電池。
- 前記有機リガンドは、トリオクチルホスフィン(TOP)又はトリオクチルホスフィンオキシド(TOPO)で置換される、請求項13に記載の太陽電池。
- 前記ペロブスカイトナノ結晶を囲む前記有機リガンドの一部は、前記TOP又は前記TOPOで置換される、請求項15に記載の太陽電池。
- 前記光活性層は、Phenyl-C61-butyric acid methyl ester(PCBM)を更に含む、請求項13に記載の太陽電池。
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US20170358759A1 (en) | 2017-12-14 |
JP6829682B2 (ja) | 2021-02-10 |
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US20190259962A1 (en) | 2019-08-22 |
US10964896B2 (en) | 2021-03-30 |
US11730051B2 (en) | 2023-08-15 |
US20210265574A1 (en) | 2021-08-26 |
KR101724210B1 (ko) | 2017-04-07 |
US10276807B2 (en) | 2019-04-30 |
US20230363248A1 (en) | 2023-11-09 |
JP2021010012A (ja) | 2021-01-28 |
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