成果報告書詳細
管理番号20120000000256
タイトル*平成23年度中間年報 「省エネルギー革新技術開発事業/先導研究/フォノン援用励起過程を用いた赤外光-可視光変換膜作製のための基盤技術の研究開発」
公開日2012/6/1
報告書年度2011 - 2011
委託先名浜松ホトニクス株式会社 国立大学法人東京大学
プロジェクト番号P9015
部署名省エネルギー部
和文要約和文要約等以下本編抜粋:
1. 研究開発の内容及び成果等
1)研究開発の内容
(1)事業目的
従来の赤外光センサはノイズを低減するための冷却機構が必要であるため、光計測装置全体が大型化し、消費電力が大きくなり、優れた光源や光学部品が存在するにもかかわらず赤外光の産業利用が制限されていた。これを解決する手段として、赤外光を可視光に変換する方法もあるが、課題が多く、ごく限られた分野での利用にとどまっているのが現状である。本研究開発では、旧来の材料開発や環境負荷の高い材料、希少資源に頼らない画期的なエネルギー変換手法であるフォノン援用励起過程を用いた赤外光-可視光変換膜作製のための基盤技術を確立し、実用化の可能性を実証する。これにより、従来十分に利用されていなかった赤外光のエネルギーを活用することを可能とし、省エネルギー化、高効率化を可能とする。
英文要約Title:Research and development of the basic technology for infrared-visible light wavelength conversion-film manufacture using the phonon-assisted excitation process
(FY2010-FY2012) FY2011 Annual Report
Because the conventional infrared photosensor needs a cooler to reduce its dark noise coming from narrow band gap of the material of the infrared photosensor, the whole photosensor size and its power consumption increase. Therefore, the industrial use of the infrared light is restricted to special operating environment. The goal of this development is an establishment of a basic technology for manufacturing the infrared-visible wavelength conversion film based on the phonon-assisted excitation process. This technology is epoch-making energy conversion technique, which is independent on the material properties, e.g., a band gap, dispersion of refractive index, and so on. This innovative technology also reduces the material cost, the environmental load, and the rare resource wasting in addition to reducing the power consumption by withdrawing the photosensor cooler. We are also going to expand the potential of the utilizing the infrared light, which was not used enough so far.
1. Design, manufacture and evaluation of the wavelength conversion film.
The first task of this development is clarifying the most suitable method to obtain the dye-grains constituting a convertor. We prepared a resin sheet containing the DCM dye micrograins which were crushed by laser irradiation as infrared-visible light wavelength conversion-film. The performance of the manufactured convertor was measured. The conversion efficiency was 3.6x10^(-6)%.
2. Quantitative mechanism elucidation of the phonon-assisted excitation process by optical near field.
The second task of this development is obtaining the most important parameters to increase the conversion efficiency of the wavelength conversion film. We clarified that these parameters are density of dye grains and their shapes. Furthermore, construction of the experimental setup to observed molecular vibration mode in the two step transition process, which is origin of the wavelength conversion, is another task. The constructed experimental setup achieved time resolution of 9.7 fs.
3. Development of the autonomous shape optimization method of the dye-grains using phonon-assisted excitation process for wavelength conversion film.
The third task of this development is construction of the efficient fabrication method based on the features of the optical near-field. We fabricated useful and efficient wavelength conversion film, which is silicon resin film containing the dispersed dye grains.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る