JP2014529877A - 量子ドット半導体材料の製造装置及び製造方法 - Google Patents
量子ドット半導体材料の製造装置及び製造方法 Download PDFInfo
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Abstract
Description
1)基板材料を成長室に載置し、前記成長室を真空にする工程と、
2)前記基板材料を加熱して前記基板材料の温度を第1温度に維持し、エピタキシャル成長法により前記基板材料の表面にエピタキシャル層を堆積する工程と、
3)堆積率を制御して前記基板材料の表面に、前記第1温度における臨界膜厚より薄い第2膜厚を有する前記エピタキシャル層を堆積する工程と、
4)レーザ光源を作動させて前記エピタキシャル層の表面に干渉パターンを生成する工程であって、前記干渉パターンに基づいて、前記エピタキシャル層上の一部の位置の温度が第2温度まで昇温し、前記第2温度における臨界膜厚が前記第2膜厚よりも薄い工程と、
5)前記干渉パターンを取り除いた後、前記エピタキシャル層の堆積を続けて、前記エピタキシャル層の表面に量子ドットを形成する工程と、
を含む。
Claims (8)
- エピタキシー装置と、
干渉パターンを生成する光学装置と、
を備え、
前記エピタキシー装置は成長室を含み、前記成長室は真空室であり基板材料の載置に用いられ、前記成長室の壁には、前記成長室に光を入射させるための複数の窓が設けられ、
前記光学装置は、レーザ光源と変調光路とを備え、
前記レーザ光源から射出された光線が前記変調光路を介して複数の光線に分岐されて、前記複数の光線が前記複数の窓をそれぞれ通って前記成長室に入り、前記基板材料の表面に前記干渉パターンを生成する量子ドット材料製造装置。 - 請求項1に記載の量子ドット材料製造装置において、
前記複数の窓は、前記成長室の壁に等間隔で配置された3つの窓である量子ドット材料製造装置。 - 請求項2に記載の量子ドット材料製造装置において、
前記レーザ光源から射出された前記光線が前記変調光路を介して3つの光線に分岐されて、前記3つの光線が前記3つの窓をそれぞれ通って前記成長室に入り、前記基板材料の表面に三光線干渉パターンを生成する量子ドット材料製造装置。 - 請求項1に記載の量子ドット材料製造装置において、
前記複数の窓は、前記成長室の壁に等間隔で配置された4つの窓である量子ドット材料製造装置。 - 請求項4に記載の量子ドット材料製造装置において、
前記レーザ光源から射出された前記光線が前記変調光路を介して4つの光線に分岐されて、前記4つの光線が前記4つの窓をそれぞれ通って前記成長室に入り、前記基板材料の表面に四光線干渉パターンを生成する量子ドット材料製造装置。 - 請求項1に記載の量子ドット材料製造装置において、
前記レーザ光源はパルスレーザ光源である量子ドット材料製造装置。 - 請求項1〜6のいずれか一項に記載の量子ドット材料製造装置により製造される量子ドット材料の製造方法であって、
1)基板材料を成長室に載置し、前記成長室を真空にする工程と、
2)前記基板材料を加熱して前記基板材料の温度を第1温度に維持し、エピタキシャル成長法により前記基板材料の表面にエピタキシャル層を堆積する工程と、
3)堆積率を制御して前記基板材料の表面に、前記第1温度における臨界膜厚より薄い第2膜厚を有する前記エピタキシャル層を堆積する工程と、
4)レーザ光源を作動させて前記エピタキシャル層の表面に干渉パターンを生成する工程であって、前記干渉パターンに基づいて、前記エピタキシャル層上の一部の位置の温度が第2温度まで昇温し、前記第2温度における臨界膜厚が前記第2膜厚よりも薄い工程と、
5)前記干渉パターンを取り除いた後、前記エピタキシャル層の堆積を続けて、前記エピタキシャル層の表面に量子ドットを形成する工程と、
を含む量子ドット材料製造方法。 - 請求項7に記載の量子ドット材料製造方法において、
前記干渉パターンは周期的ドットマトリックスであって、前記周期的ドットマトリックスにおいて、前記エピタキシャル層の温度は、前記周期的ドットマトリックスの干渉増強領域にて前記第2温度まで昇温される量子ドット材料製造方法。
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CN201110224270.7A CN102916343B (zh) | 2011-08-05 | 2011-08-05 | 一种量子点材料的制作装置及制作方法 |
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EP (1) | EP2741315B1 (ja) |
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EP3223063A1 (en) | 2016-03-24 | 2017-09-27 | Thomson Licensing | Device for forming a field intensity pattern in the near zone, from incident electromagnetic waves |
EP3223062A1 (en) * | 2016-03-24 | 2017-09-27 | Thomson Licensing | Device for forming at least one focused beam in the near zone, from incident electromagnetic waves |
EP3312660A1 (en) | 2016-10-21 | 2018-04-25 | Thomson Licensing | Device for forming at least one tilted focused beam in the near zone, from incident electromagnetic waves |
EP3312646A1 (en) | 2016-10-21 | 2018-04-25 | Thomson Licensing | Device and method for shielding at least one sub-wavelength-scale object from an incident electromagnetic wave |
EP3385219B1 (en) | 2017-04-07 | 2021-07-14 | InterDigital CE Patent Holdings | Method for manufacturing a device for forming at least one focused beam in a near zone |
CN107424914A (zh) * | 2017-07-11 | 2017-12-01 | 苏州大学 | 图形化生长量子点的方法 |
CN114743864B (zh) * | 2022-03-16 | 2023-10-27 | 苏州大学 | 一种有序半导体量子点制备方法及装置 |
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A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20160916 |