JP6437277B2 - 二次元物質及びその形成方法、並びに該二次元物質を含む素子 - Google Patents
二次元物質及びその形成方法、並びに該二次元物質を含む素子 Download PDFInfo
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- JP6437277B2 JP6437277B2 JP2014225233A JP2014225233A JP6437277B2 JP 6437277 B2 JP6437277 B2 JP 6437277B2 JP 2014225233 A JP2014225233 A JP 2014225233A JP 2014225233 A JP2014225233 A JP 2014225233A JP 6437277 B2 JP6437277 B2 JP 6437277B2
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Description
1A,1B,1C,2A, M10〜M18,M15’,M15”,M101,M102 第1二次元物質
2b 第2金属酸化物
2c 金属酸化物領域
2B,2C,M25’,M25”,M201,M202 第2二次元物質
10,10A,20,30,30A 薄膜
20A,30B 二次元物質層
100,100A,100B,110A,110B,111A,111A’,111A”,112A,112B,113B,1000 二次元物質要素
CL10〜CL34 導電層
D10,D20 単位素子
E101 第1電極
E201 第2電極
L1,L2,L3 光
M1,M1’,M2,M2’ 金属元素
M20〜M28 第2二次元物質
M33,M34,M38,M302 第3二次元物質
ML1 マスク層
NL10〜NL15 絶縁層
PS1 前駆体溶液
SUB1,SUB10,SUB101 基板
SL10〜SL24,SL101,SL102 半導体層
X1,X1’,X2,X2’ カルコゲン元素
Claims (44)
- 第1金属カルコゲナイド系物質を含む第1二次元物質と、
前記第1二次元物質の側面に結合しており、第2金属カルコゲナイド系物質を含む第2二次元物質と、を具備し、
前記第1金属カルコゲナイド系物質と、前記第2金属カルコゲナイド系物質は、互いに異なる金属元素を含むか、または、互いに異なるカルコゲン元素を含み、
前記第1二次元物質と第2二次元物質は、化学結合している二次元物質要素。 - 前記第1二次元物質と第2二次元物質は、共有結合していることを特徴とする請求項1に記載の二次元物質要素。
- 前記第1二次元物質と第2二次元物質は、その結合部において連続した結晶構造を有するように、原子間結合していることを特徴とする請求項1または2に記載の二次元物質要素。
- 前記第1金属カルコゲナイド系物質と、前記第2金属カルコゲナイド系物質は、互いに異なるTMDC物質を含むことを特徴とする請求項1から3のうちいずれか1項に記載の二次元物質要素。
- 前記第1金属カルコゲナイド系物質、及び前記第2金属カルコゲナイド系物質のうち少なくとも一つは、Mo、W、Nb、V、Ta、Ti、Zr、Hf、Tc、Re、Cu、Ga、In、Sn、Ge、Pbのうち1つの金属元素と、S、Se、Teのうち1つのカルコゲン元素と、を含むことを特徴とする請求項1から4のうちいずれか1項に記載の二次元物質要素。
- 前記第1二次元物質と前記第2二次元物質は、半導体であることを特徴とする請求項1から5のうちいずれか1項に記載の二次元物質要素。
- 前記第1二次元物質は、n型半導体であり、
前記第2二次元物質は、p型半導体であることを特徴とする請求項1から6のうちいずれか1項に記載の二次元物質要素。 - 前記第1金属カルコゲナイド系物質と、前記第2金属カルコゲナイド系物質は、互いに異なる金属元素を含むことを特徴とする請求項7に記載の二次元物質要素。
- 前記第1金属カルコゲナイド系物質と、前記第2金属カルコゲナイド系物質は、同一のカルコゲン元素を含むことを特徴とする請求項7または8に記載の二次元物質要素。
- 前記第1二次元物質は、前記第1金属カルコゲナイド系物質であり、MoS2、MoSe2、MoTe2、WSe2及びWTe2のうち少なくとも一つを含むことを特徴とする請求項7に記載の二次元物質要素。
- 前記第2二次元物質は、前記第2金属カルコゲナイド系物質であり、WS2、ZrS2、ZrSe2、HfS2、HfSe2及びNbSe2のうち少なくとも一つを含むことを特徴とする請求項7または10に記載の二次元物質要素。
- 前記第1二次元物質は、MoS2を含み、
前記第2二次元物質は、WS2を含むことを特徴とする請求項7に記載の二次元物質要素。 - 前記第1二次元物質と前記第2二次元物質は、互いに異なるエネルギーバンドギャップを有することを特徴とする請求項1から6のうちいずれか1項に記載の二次元物質要素。
- 前記第1金属カルコゲナイド系物質と、前記第2金属カルコゲナイド系物質は、互いに異なるカルコゲン元素を含むことを特徴とする請求項13に記載の二次元物質要素。
- 前記第1金属カルコゲナイド系物質と、前記第2金属カルコゲナイド系物質は、同一の金属元素を含むことを特徴とする請求項13または14に記載の二次元物質要素。
- 前記第1二次元物質は、MoS2、MoSe2及びMoTe2のうち一つを含み、
前記第2二次元物質は、MoS2、MoSe2及びMoTe2のうち他の一つを含むことを特徴とする請求項13に記載の二次元物質要素。 - 前記第1二次元物質は、WS2、WSe2及びWTe2のうち一つを含み、
前記第2二次元物質は、WS2、WSe2及びWTe2のうち他の一つを含むことを特徴とする請求項13に記載の二次元物質要素。 - 前記第1二次元物質の両側に、前記第2二次元物質が配置されるか、または前記第2二次元物質の両側に、前記第1二次元物質が配置されていることを特徴とする請求項1から17のうちいずれか1項に記載の二次元物質要素。
- 複数の前記第1二次元物質と複数の前記第2二次元物質とがパターン化された構造を形成することを特徴とする請求項1から18のうちいずれか1項に記載の二次元物質要素。
- 前記第1二次元物質または第2二次元物質の側面に結合した第3二次元物質をさらに含むことを特徴とする請求項1から19のうちいずれか1項に記載の二次元物質要素。
- 多層構造体を含む半導体素子において、
前記多層構造体は、
請求項1から20のうちいずれか1項に記載の二次元物質要素を含む半導体層と、
前記半導体層の少なくとも一面に位置する少なくとも1層の非半導体層と、を含む半導体素子。 - 前記多層構造体は、
前記半導体層の第1面に位置する第1導電層と、
前記半導体層の第2面に位置する第2導電層と、を含むことを特徴とする請求項21に記載の半導体素子。 - 前記多層構造体は、
前記第2導電層と離隔された第3導電層と、
前記第2導電層と前記第3導電層との間の絶縁層と、をさらに含むことを特徴とする請求項22に記載の半導体素子。 - 前記多層構造体は、
前記半導体層の第1面に位置する第1絶縁層と、
前記半導体層の第2面に位置する第2絶縁層と、
前記第1絶縁層を挟んで、前記半導体層と対向する第1導電層と、
前記第2絶縁層を挟んで、前記半導体層と対向する第2導電層と、を含むことを特徴とする請求項21に記載の半導体素子。 - 前記多層構造体は、
前記半導体層の第1面に位置する第1導電層と、
前記第1導電層と離隔された第2導電層と、
前記第1導電層と前記第2導電層との間の絶縁層と、を含むことを特徴とする請求項21に記載の半導体素子。 - 前記多層構造体は、
前記半導体層と離隔された第1導電層と、
前記半導体層と前記第1導電層との間の絶縁層と、
前記半導体層の第1領域及び第2領域にそれぞれ接触した第2導電層及び第3導電層と、を含むことを特徴とする請求項21に記載の半導体素子。 - 前記多層構造体は、
前記半導体層の第1面に位置する絶縁層と、
前記半導体層の第2面に位置する第1導電層と、を含むことを特徴とする請求項21に記載の半導体素子。 - 前記多層構造体は、
前記絶縁層を挟んで、前記半導体層と対向する第2半導体層と、
前記第2半導体層の第1領域及び第2領域にそれぞれ接触した第2導電層及び第3導電層と、をさらに含むことを特徴とする請求項27に記載の半導体素子。 - 前記少なくとも1層の非半導体層は、導電性二次元物質及び絶縁性二次元物質のうち少なくとも一つを含むことを特徴とする請求項21から28のうちいずれか1項に記載の半導体素子。
- 前記半導体層は、PN接合構造、PNP接合構造及びNPN接合構造のうち少なくとも一つを含むことを特徴とする請求項21から29のうちいずれか1項に記載の半導体素子。
- 前記半導体層は、エネルギーバンドギャップが互いに異なる複数の二次元物質を含むことを特徴とする請求項21から29のうちいずれか1項に記載の半導体素子。
- 前記半導体素子は、トンネリング素子であり、
前記半導体層は、トンネリング層であることを特徴とする請求項21に記載の半導体素子。 - 前記半導体素子は、BJTであり、
前記半導体層は、トンネリング層であることを特徴とする請求項21に記載の半導体素子。 - 前記半導体素子は、バリスタであり、
前記半導体層は、チャンネル層であることを特徴とする請求項21に記載の半導体素子。 - 前記半導体素子は、FETであり、
前記半導体層は、チャンネル層であることを特徴とする請求項21に記載の半導体素子。 - 前記半導体素子は、メモリ素子であり、
前記半導体層は、電荷トラップ層であることを特徴とする請求項21に記載の半導体素子。 - 前記半導体素子は、ダイオードであることを特徴とする請求項21に記載の半導体素子。
- 前記半導体素子は、太陽電池であることを特徴とする請求項21に記載の半導体素子。
- 前記半導体素子は、光検出器であることを特徴とする請求項21に記載の半導体素子。
- 第1二次元物質と、前記第1二次元物質に化学結合している第2二次元物質と、を含み、
前記第1二次元物質は、第1金属カルコゲナイドの第1層を含み、
前記第2二次元物質は、第2金属カルコゲナイドの第2層を含み、
前記第1金属カルコゲナイド及び第2金属カルコゲナイドは、互いに異なる金属元素を含むか、または互いに異なるカルコゲン元素を含む二次元物質要素。 - 前記第1金属カルコゲナイドは、第1金属を含み、
前記第2金属カルコゲナイドは、第2金属を含み、
前記第1金属及び第2金属のうち少なくとも一つは、遷移金属であることを特徴とする請求項40に記載の二次元物質要素。 - 前記第1金属カルコゲナイド及び前記第2金属カルコゲナイドそれぞれは、独立して、
Mo、W、Nb、V、Ta、Ti、Zr、Hf、Tc、Re、Cu、Ga、In、Sn、Ge、Pbのうち1つの金属元素と、
S、Se、Teのうち1つのカルコゲン元素と、を含むことを特徴とする請求項40または41に記載の二次元物質要素。 - 前記二次元物質要素は、第3金属カルコゲナイドの第3層を含む第3二次元物質をさらに具備し、
前記第1二次元物質及び第3二次元物質は、前記第2二次元物質の両側に、それぞれ化学結合していることを特徴とする請求項40から42のうちいずれか1項に記載の二次元物質要素。 - 請求項40から43のうちいずれか1項に記載の二次元物質要素を含む半導体層を含む半導体素子。
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WO2013063399A1 (en) | 2011-10-28 | 2013-05-02 | Georgetown University | Method and system for generating a photo-response from mos2 schottky junctions |
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