JP4362635B2 - ZnO系半導体素子 - Google Patents
ZnO系半導体素子 Download PDFInfo
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- JP4362635B2 JP4362635B2 JP2008021953A JP2008021953A JP4362635B2 JP 4362635 B2 JP4362635 B2 JP 4362635B2 JP 2008021953 A JP2008021953 A JP 2008021953A JP 2008021953 A JP2008021953 A JP 2008021953A JP 4362635 B2 JP4362635 B2 JP 4362635B2
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910002704 AlGaN Inorganic materials 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
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- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
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Description
ことができるが、酸化物は薄膜形成法がスパッタかPLD(パルスレーザーデポジション)などに限られており、半導体素子のような積層構造を作製しにくい。スパッタは通常結晶薄膜を得るのが難しく、PLDは基本的に点蒸発であるので、2インチ程度であっても大面積化が困難である。
2 有機物電極
3 Au膜
4 Ti膜
5 Au膜
6 基板
8 ZnO基板
9 p型MgZnO層
11 n型MgZnO層
Claims (16)
- ZnO系半導体に接して有機物電極が形成され、前記ZnO系半導体はn型に構成されるとともに、前記有機物電極はポリアニリン誘導体、ポリピロール誘導体、ポリチオフェン誘導体の中の少なくとも一種から構成されており、前記有機物電極の仕事関数が前記ZnO系半導体の電子親和力よりも大きいことを特徴とするZnO系半導体素子。
- 前記ZnO系半導体の有機物電極と接する側の主面が+C面であることを特徴とする請求項1記載のZnO系半導体素子。
- 前記有機物電極の法線は、前記主面の+c軸から少なくともm軸方向に傾斜していることを特徴とする請求項2記載のZnO系半導体素子。
- 前記有機物電極の法線の傾斜角度は5度以下であることを特徴とする請求項3記載のZnO系半導体素子。
- 前記ZnO系半導体の有機物電極と接する側の主面がM面又はA面であることを特徴とする請求項1記載のZnO系半導体素子。
- 前記有機物電極の法線は、前記主面のm軸又はa軸から少なくともc軸方向に傾斜していることを特徴とする請求項5記載のZnO系半導体素子。
- 前記有機物電極の抵抗率が1Ωcm以下であることを特徴とする請求項1〜請求項6のいずれか1項に記載のZnO系半導体素子。
- 前記有機物電極は、キャリアドーパントを含むポリアニリン誘導体、キャリアドーパントを含むポリピロール誘導体、キャリアドーパントを含むポリチオフェン誘導体の中の少なくとも一種から構成されていることを特徴とする請求項1〜請求項7のいずれか1項に記載のZnO系半導体素子。
- 前記有機物電極は、紫外光領域で透光性を有することを特徴とする請求項1〜請求項8のいずれか1項に記載のZnO系半導体素子。
- 前記有機物電極が正孔伝導体からなることを特徴とする請求項9記載のZnO系半導体素子。
- 前記ZnO系半導体素子の有機物電極側に負電圧を印加する逆バイアス状態で3ボルト印加し、光の照射がない状態で、逆方向電流が1ナノアンペア以下であることを特徴とする請求項9又は請求項10のいずれか1項に記載のZnO系半導体素子。
- 前記ZnO系半導体は、ZnO系基板のみで構成されていることを特徴とする請求項9〜請求項11のいずれか1項に記載のZnO系半導体素子。
- 前記ZnO系半導体素子は、フォトダイオードであることを特徴とする請求項9〜請求項12のいずれか1項に記載のZnO系半導体素子。
- 前記ZnO系半導体は、ZnO系基板上に少なくともZnO系薄膜が1層形成された積層体で構成され、前記有機物電極がショットキー型のゲート電極として作用し、トランジスタ機能を有することを特徴とする請求項1〜請求項8のいずれか1項に記載のZnO系半導体素子。
- 前記積層体は、ZnO系基板上にZnO系薄膜が2層以上積層されており、ZnO系基板に近い側からMg X ZnO(0≦X<1)、Mg Y ZnO(0<Y<1)の順に積層された薄膜積層構造(X<Y)を少なくとも1組は備えていることを特徴とする請求項14記載のZnO系半導体素子。
- 前記薄膜積層構造におけるMgXZnOとMgYZnOの界面に発生する電子蓄積領域をチャネル領域とすることを特徴とする請求項15に記載のZnO系半導体素子。
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TWI422082B (zh) * | 2010-08-03 | 2014-01-01 | Univ Nat Sun Yat Sen | 複合壓電換能裝置 |
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JP5688646B2 (ja) * | 2013-11-26 | 2015-03-25 | 国立大学法人鳥取大学 | 有機−無機ハイブリッド接合型光電変換素子 |
CN110828552B (zh) * | 2014-07-22 | 2024-04-12 | 株式会社Flosfia | 结晶性半导体膜和板状体以及半导体装置 |
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