JP2015225860A - 導電性材料およびこれを含む電子素子 - Google Patents
導電性材料およびこれを含む電子素子 Download PDFInfo
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- JP2015225860A JP2015225860A JP2015107965A JP2015107965A JP2015225860A JP 2015225860 A JP2015225860 A JP 2015225860A JP 2015107965 A JP2015107965 A JP 2015107965A JP 2015107965 A JP2015107965 A JP 2015107965A JP 2015225860 A JP2015225860 A JP 2015225860A
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- conductive material
- material according
- atomic radius
- chalcogen
- crystal structure
- Prior art date
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- 239000004020 conductor Substances 0.000 title claims abstract description 54
- 239000013078 crystal Substances 0.000 claims abstract description 47
- 229910052798 chalcogen Inorganic materials 0.000 claims abstract description 16
- 150000001787 chalcogens Chemical class 0.000 claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 9
- 238000002834 transmittance Methods 0.000 claims abstract description 9
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 49
- 239000002135 nanosheet Substances 0.000 claims description 46
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 239000011669 selenium Substances 0.000 claims description 6
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052714 tellurium Inorganic materials 0.000 claims description 3
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- 238000000034 method Methods 0.000 abstract description 36
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- 238000004549 pulsed laser deposition Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000001022 rhodamine dye Substances 0.000 description 1
- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
- 108010054220 vasodilator-stimulated phosphoprotein Proteins 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】遷移元素、白金族元素、希土類元素またはこれらの組み合わせから選択される第1元素と、前記第1元素と異なり、かつ前記第1元素の原子半径の±10%の原子半径を有する第2元素と、カルコゲン元素と、を含み、層状結晶構造を有する、導電性素材を提供する。
【選択図】図1
Description
M1は、遷移元素、白金族元素、希土類元素またはこれらの組み合わせから選択される第1元素であり、
M2は、前記第1元素と異なり、かつ前記第1元素の原子半径の±10%の原子半径を有する第2元素であり、
Xは、硫黄(S)、セレン(Se)、テルル(Te)またはこれらの組み合わせから選択され、
0<a<0.5である。
バンド構造から自由電子によるバンド内遷移を計算して電気伝導度およびプラズマ周波数の計算
バンド構造から束縛電子によるバンド間遷移の計算
自由電子と束縛電子の影響を考慮した誘電関数の計算
誘電関数の1/2乗を取って複素数屈折関数の計算(n.+ik)および屈折関数から可視光に対する屈折率と可視光に対する吸収係数の計算。
グローブボックス内でPd粉末(純度:99.99%、ヘレウス株式会社製、原子半径140pm)2.7977g(0.0263モル)、Pt粉末(純度:99.99%、ヘレウス株式会社製、原子半径135pm)0.2137g(0.00109モル)およびTe粉末(純度:99.99%、5N Plus製)6.9886g(0.05477モル)を混合して混合物を調製した。前記混合物を石英ガラス管に入れて、石英ガラス管を加熱炉に入れ、1250℃まで加熱して前記混合物を溶融させた後、約2℃/時間の速度で徐々に冷却させて、単結晶インゴットを成長させた。
原料物質としてPd粉末2.6554g(0.02496モル、ヘレウス株式会社製)、Pt粉末0.4233g(0.0022モル、ヘレウス株式会社製)およびTe粉末6.9214g(0.0542モル、5N Plus製)を用いたことを除いては、実施例1と同様な方法で合成して、Pd0.92Pt0.08Te2粉末およびPd0.92Pt0.08Te2ナノシートを調製した。
原料物質としてPd粉末2.8413g(0.0267モル)、Mn粉末(純度:99.9%、Aldrich製、原子半径140pm)0.061g(0.0011モル)およびTe粉末7.0975g(0.0556モル)を用いたことを除いては、実施例1と同様な方法で合成して、Pd0.96Mn0.04Te2粉末およびPd0.96Mn0.04Te2ナノシートを調製した。
原料物質としてPd粉末2.7836g(0.0257モル、ヘレウス株式会社製)、Mn粉末(純度:99.9%、Aldrich製)0.1229g(0.0022モル)およびTe粉末7.1384g(0.0559モル、5N Plus製)を用いたことを除いては、実施例1と同様な方法で合成して、Pd0.92Mn0.08Te2粉末およびPd0.92Mn0.08Te2ナノシートを調製した。
原料物質としてPt粉末を用いず、Pd粉末2.9429g(0.0277モル、ヘレウス株式会社製)およびTe粉末7.0571g(0.0553モル、5N Plus製)を用いたことを除いては、実施例1と同様な方法で合成して、PdTe2粉末およびPdTe2ナノシートを調製した。
[評価1]
実施例1〜4と比較例1で得られた粉末の結晶構造を確認するため、X線回折分析(XRD)を行った。
実施例1〜4と比較例1で得られたナノシートの電気伝導度を評価した。電気伝導度の評価は、実施例1〜4と比較例1で得られたナノシートを特定のパターンが印刷された基板上に物理的に接着して試片を準備した後、直流4端子法を用いて常温で行った。
実施例1〜4と比較例1で得られたナノシートの厚さを原子間力顕微鏡を用いて測定した。
20:下部電極
30:発光層
40:上部電極
50:補助層
Claims (15)
- 遷移元素、白金族元素、希土類元素またはこれらの組み合わせから選択される第1元素と、
前記第1元素と異なり、かつ前記第1元素の原子半径の±10%の原子半径を有する第2元素と、
カルコゲン元素と、
を含み、
層状結晶構造を有する
導電性材料。 - 前記第1元素および前記カルコゲン元素は、金属ジカルコゲナイドの層状結晶構造を形成し、
前記第2元素は、ドーピングされて前記第1元素の一部と置換される、
請求項1に記載の導電性材料。 - 前記第2元素は、前記金属ジカルコゲナイドの層状結晶構造を変形させる、請求項2に記載の導電性材料。
- 前記第2元素は、前記導電性材料に含まれる第1元素、第2元素およびカルコゲン元素の合計量を100mol%として0.1〜20mol%含まれる、請求項1〜3のいずれか1項に記載の導電性材料。
- 下記の化学式1で表される、請求項1〜4のいずれか1項に記載の導電性材料。
M1は、遷移元素、白金族元素、希土類元素またはこれらの組み合わせから選択される第1元素であり、
M2は、前記第1元素と異なり、かつ前記第1元素の原子半径の±10%の原子半径を有する第2元素であり、
Xは、硫黄(S)、セレン(Se)、テルル(Te)またはこれらの組み合わせから選択され、
0<a<0.5である。) - 前記化学式1のaは、0.01≦a≦0.2である、請求項5に記載の導電性材料。
- 前記層状結晶構造は、2以上の単位結晶層を含み、
前記単位結晶層は、上層部および下層部に前記カルコゲン元素を含み、
前記上層部および前記下層部の間に第1元素および第2元素を含む、請求項1〜6のいずれか1項に記載の導電性材料。 - 前記第2元素は、前記単位結晶層の格子構造を変化させる、請求項7に記載の導電性材料。
- 前記導電性材料の電気伝導度は、3.0×104S/cm以上である、請求項1〜8のいずれか1項に記載の導電性材料。
- 550nm波長で80%以上の光透過度を有する、請求項1〜9のいずれか1項に記載の導電性材料。
- 200nm未満の厚さを有する2以上のナノシートを含み、
前記ナノシートが互いに接触して電気的連結を形成する、請求項1〜10のいずれか1項に記載の導電性材料。 - 剥離特性を有する、請求項1〜11のいずれか1項に記載の導電性材料。
- 200nm未満の厚さを有する、請求項1〜12のいずれか1項に記載の導電性材料。
- 請求項1〜13のいずれか1項に記載の導電性材料を含む電子素子。
- 前記電子素子は、平板表示装置、タッチパネルスクリーン、太陽電池、e−ウィンドウ、ヒートミラーまたは透明トランジスタである、請求項14に記載の電子素子。
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EP2950357B1 (en) | 2020-04-29 |
CN105280264A (zh) | 2016-01-27 |
JP6721946B2 (ja) | 2020-07-15 |
KR102188719B1 (ko) | 2020-12-08 |
KR20150136561A (ko) | 2015-12-07 |
CN105280264B (zh) | 2018-11-06 |
US9809455B2 (en) | 2017-11-07 |
US20150344305A1 (en) | 2015-12-03 |
EP2950357A1 (en) | 2015-12-02 |
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