JP6995814B2 - マルチモード光検出器及びその製造方法 - Google Patents
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Description
この出願は、(1)2018年10月9日に出願された仮特許出願シリアル番号第62/743,525号;及び(2)2019年10月4日に出願された非仮特許出願シリアル番号第16/592,793からの優先権を主張し、その開示は、参照によりその全体が本明細書に組み込まれる。
Claims (17)
- 機能性多層構造を含んだバイアス切り替え可能なスペクトル応答マルチモード光検出器であって、
前記機能性多層構造は、第1の吸収体とスペーサと第2の吸収体との組み合わせを含み、
前記マルチモード光検出器は、
逆バイアス下において、第1の波長又は可視光の電磁波には応答しないが、第2の波長又は赤外線若しくは近赤外線の電磁波には応答し、且つ、
順バイアス下において、第2の波長又は赤外線若しくは近赤外線の電磁波には応答しないが、第1の波長又は可視光の電磁波には応答する、
ように構成されており、
前記第1の吸収体が吸収する前記第1の波長の電磁波の波長は、前記第2の吸収体が吸収する前記第2の波長の電磁波の波長よりも短く、
前記スペーサは、前記第1の波長の電磁波を効果的に枯渇させ且つ前記第2の波長の電磁波が前記第2の吸収体に吸収されるように光吸収性である、
バイアス切り替え可能なスペクトル応答マルチモード光検出器。 - 前記少なくとも1つの吸収体及び少なくとも1つのスペーサに使用される同じ又は異なる材料は、有機、ポリマー、ペロブスカイト、コロイド量子ドット、有機/無機ハイブリッド、1D及び2D低次元材料、又はそれらの任意の組み合わせの1つ又は複数である、請求項1に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第1の吸収体は、前記マルチモード光検出器の前部電極に隣接して配置され、可視光を含む前記第1の波長の電磁波に対して感光性である、請求項1に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第1の吸収体は、ポリ(3-ヘキシルチオフェン)とPC70BMとを100:1の比率で含んだ材料で形成されている、請求項3に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第2の吸収体は、前記マルチモード光検出器の後部電極に隣接して配置され、赤外線及び近赤外線を含む前記第2の波長の電磁波に対して感光性である、請求項1に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第2の吸収体は、ポリ(3-ヘキシルチオフェン)と、ポリ[4,8-ビス(5-(2-エチルヘキシル)チオフェン-2-イル)ベンゾ[1,2-b;4,5-b′]ジチオフェン-2,6-ジイル-alt-(4-(2-エチルヘキシル)-3-フルオロチエノ[3,4-b]チオフェン-)-2-カルボキシレート-2-6-ジイル)]と、[6,6]-フェニル-C70-酪酸メチルエステルとを、70:30:1の比率で含んだ材料から形成されている、請求項5に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記スペーサは、可視光範囲の電磁波を枯渇させるためにポリ(3-ヘキシルチオフェン)で形成されている、請求項1に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第2の波長の電磁波の波長は、640nm~800nmの範囲にある、請求項1に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第1の波長の電磁波の波長は、310nm~650nmの範囲にある、請求項1に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 順バイアス又は逆バイアス下で動作する異なる波長の電磁波に対して異なる光応答性を有する光検出器が、前記マルチモード光検出器の各層の光生成電荷キャリアによって提供される、請求項1に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第1の吸収体は、10nm~10ミクロンの厚みを有している、請求項4に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記第2の吸収体は、10nm~10ミクロンの厚みを有している、請求項6に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記スペーサは10nm~10ミクロンの厚みを有し、前記ポリ(3-ヘキシルチオフェン)は純粋なポリ(3-ヘキシルチオフェン)である、請求項7に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 異なる波長の電磁波にバイアス切り替え可能なスペクトル応答を提供するために、請求項1に記載のマルチモード光検出器と、マルチモード光検出器の2つの異なる電極に印加されるバイアスの極性が調整される2つの異なる電極とを含んでいる、バイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記バイアス切り替え可能なスペクトル応答マルチモード光検出器は、画像化、環境汚染、バイオ、医療、農業、自動車、漁業、食料、健康、若しくはセキュリティの監視、又は2つ以上の異なる帯域での検出に使用される、請求項14に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 前記2つ以上の異なる帯域は、10nm~1000μmの範囲において2つ以上の異なる波長を有する複数の電磁波を含んでいる請求項15に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
- 2つ以上の異なる波長を有する前記複数の電磁波は、UV、可視、NIR、SWIR、MWIR、LWIR及びVLWIRから選択される、請求項16に記載のバイアス切り替え可能なスペクトル応答マルチモード光検出器。
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