JP2016526173A - エレクトロクロミック素子のための三元酸化ニッケル材料 - Google Patents
エレクトロクロミック素子のための三元酸化ニッケル材料 Download PDFInfo
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Abstract
Description
本願は、2012年8月9日に提出された米国仮特許出願第61/681,353号および2013年3月12日に提出された同第61/776,886号の出願日の利益を主張するものであり、その開示内容は、参照により本明細書に組み込まれる。
本発明は、Sage Electrochromics,Inc.とNational Renewable Energy Laboratoryとの間のCRADA CRD−06−203の下になされたものである。政府は、本発明において一定の権利を有する。
いくつかの実施形態において、NiOナノ結晶のサイズは、約1.5nm〜約10nmの範囲であってよい。NiOの格子間隔は、ドーパントに影響される。例えば、格子間隔の増加は、ZrおよびVの添加によって観察される。
対電極層として好適であるリチウムニッケル金属酸化物の新規の三元組成物を評価するために、透明導電酸化物(「TCO」)層、典型的には酸化インジウムスズ(「ITO」)またはフッ素ドープト酸化スズ(「FTO」)によって予めコーティングされた2mm〜6mm厚の透明なガラス基板であって、シリカから構成されるTCOまたはシリカおよび酸化スズ層の組み合わせとの間にナトリウム拡散障壁があるガラス基板上に、サンプル膜を典型的には堆積させた。他のTCO材料、例えばガリウムドープト酸化亜鉛またはアルミニウムドープト酸化亜鉛を用いることもできたが、TCOと対電極(「CE」)層との間に形成される接合が電気接続または光透過を妨げないことを条件とした。ソーダ石灰ガラス以外の基板、例えば、溶融シリカ、ボロシリケートガラス、または透明なアルミナウェハを用いることも可能である。透明な基板により、エレクトロクロミック性能、および印加電位に対するエレクトロクロミック応答の評価の一部として、サンプルに光を透過させる。
Claims (24)
- 式LiaEC1M1bM2cOx:式中、「a」は、約0.5〜約3の範囲であり;b+cは、約0.1〜約1の範囲であり;c/(b+c)は、約0.1〜約0.9の範囲であり;xは、約0.1〜約50であり;
「EC」は、Ni(II)およびNi(III)の混合物;Co(II)およびCo(III)の混合物;Ir(IV)およびIr(V)の混合物;ならびにMn(II)、Mn(III)、およびMn(IV)の混合物からなる群から選択され;
「M1」は、Zr(IV);Hf(IV);Ta(V);Nb(V);およびW(VI)からなる群から選択され;
「M2」は、V(V);Ta(V);Mo(VI);Nb(V);Mn(IV);La(III);およびCe(IV)からなる群から選択される;
を有する化合物。 - xが、約0.1〜約50の範囲の整数である、請求項1に記載の化合物。
- xが、約0.1〜約50の範囲の整数である、請求項1に記載の化合物。
- xが、約0.1〜約50の範囲の整数である、請求項1に記載の化合物。
- xが、約0.1〜約50の範囲の整数である、請求項1に記載の化合物。
- xが、約0.1〜約50の範囲の整数である、請求項1に記載の化合物。
- xが、約0.1〜約50の範囲の整数である、請求項1に記載の化合物。
- (a)エレクトロクロミック層または対電極層の一方を含む第1電極と、
(b)エレクトロクロミック層または対電極層の他方を含む第2電極と、
(c)第1および第2電極の間でイオンを伝導させるイオン導体層と、
(d)第1導電層と、
(e)第2導電層と
を含むエレクトロクロミック素子であって、
第1および第2電極ならびにイオン導体層が、第1および第2導電層間に挟持されており、
対電極層が、式LiaEC1M1bM2cOx:
式中
「EC」は、エレクトロクロミック金属種であり、
「M1」は、ホスト金属酸化物種であり、
「M2」は、ドーパント金属酸化物種であり、
「a」は、約0.5〜約3の範囲であり;b+cは、約0.1〜約1の範囲であり;c/(b+c)は、約0.1〜約0.9の範囲であり;
xは、約0.1〜約50である;
を有する材料を含む、エレクトロクロミック素子。 - 「EC」が、Ni(II)およびNi(III)の混合物;Co(II)およびCo(III)の混合物;Ir(IV)およびIr(V)の混合物;ならびにMn(II)、Mn(III)、およびMn(IV)の混合物からなる群から選択される、請求項8に記載のエレクトロクロミック素子。
- 「M1」が、Zr(IV);Hf(IV);Ta(V);Nb(V);およびW(VI)からなる群から選択される、請求項8に記載のエレクトロクロミック素子。
- 「M2」が、V(V);Ta(V);Mo(VI);Nb(V);Mn(IV);La(III);またはCe(IV)からなる群から選択される、請求項8に記載のエレクトロクロミック素子。
- 対電極層が、Li1.82NiW0.45Oxを含み、xは、約0.1〜約50の範囲である;を含む、請求項8に記載の素子。
- 対電極層が、Li1.97NiZr0.23Oxを含み、xは、約0.1〜約50の範囲である;を含む、請求項8に記載の素子。
- 対電極層が、Li0.51NiZr0.16La0.19Oxを含み、xは、約0.1〜約50の範囲である;を含む、請求項8に記載の素子。
- 対電極層が、Li2.22NiZr0.14Mo0.25Oxを含み、xは、約0.1〜約50の範囲である;を含む、請求項8に記載の素子。
- 対電極層が、Li3.12NiZr0.15Ta0.15Oxを含み、xは、約0.1〜約50の範囲である;を含む、請求項8に記載の素子。
- 対電極層が、Li2.65NiZr0.18V0.60Oxを含み、xは、約0.1〜約50の範囲である;を含む、請求項8に記載の素子。
- エレクトロクロミック素子の作製方法であって:
(a)第1導電層を付与することと、
(b)エレクトロクロミック層または対電極層の一方を第1導電層に堆積させることにより、第1堆積電極を付与すること、
(c)イオン導体層を第1堆積電極に堆積させることと、
(d)エレクトロクロミック層または対電極層の他方をイオン導体層に堆積させることにより、第2堆積電極を付与することと、
(e)第2導電層を第2堆積電極に堆積させることと
を含み、対電極層が、Li1.82NiW0.45Ox;Li1.97NiZr0.23Ox;Li0.51NiZr0.16La0.19Ox;Li2.22NiZr0.14Mo0.25Ox;Li3.12NiZr0.15Ta0.15Ox;およびLi2.65NiZr0.18V0.60Ox:式中、xは、約0.1〜約50の範囲である;からなる群から選択される材料を含む、方法。 - (i)第2堆積電極の堆積後または(ii)第2導電層の堆積後に熱処理工程を実施することをさらに含む、請求項18に記載の方法。
- 過剰のリチウムをエレクトロクロミック素子内に堆積させる、請求項18に記載の方法。
- 基板と少なくとも1つの薄膜層とを含むエレクトロクロミック素子であって、薄膜層が、Li1.82NiW0.45Ox;Li1.97NiZr0.23Ox;Li0.51NiZr0.16La0.19Ox;Li2.22NiZr0.14Mo0.25Ox;Li3.12NiZr0.15Ta0.15Ox;およびLi2.65NiZr0.18V0.60Ox:式中、xは、約0.1〜約50の範囲である;からなる群から選択される材料から構成されている、エレクトロクロミック素子。
- xが、約1〜約6の範囲である、請求項21に記載のエレクトロクロミック素子。
- xが、約1.6〜約5.4の範囲である、請求項21に記載のエレクトロクロミック素子。
- 基板において三元酸化ニッケル材料を製造するプロセスであって、第1材料および第2材料の同時スパッタフラックスを含み、第1材料が、リチウム、ニッケル、ジルコニウムからなる群から選択され、第2材料が、バナジウム、タンタル、ニオブからなる群から選択され;スパッタフラックスを、酸化条件下に行う、プロセス。
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