The invention of a two-dimensional thermal diode by using a compositionally graded thin film

使用成分梯度薄膜发明二维热二极管

• 批准号: 23760191
• 负责人: NISHIYAMA Takashi
• 金额: $ 2.91万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760191/
• 关键词: マイクロ・ナノスケール伝熱; 熱ダイオード; 組成傾斜; 薄膜; 高重力場; レーザーアブレーション

The thermal diode samples are fabricated by the gravity assisted pulse laser ablation method (GAPLA). GAPLA is one of the compositionally graded thin film fabrication methods that is combined pulsed laser deposition and high gravity effect. The purpose of this research is to investigate the thermal rectification by the mass gradient of thin film material. As a combination of a light element and a heavy element suitable for revelation of a thermal rectification effect, the GAPLA experiments of the compositionally gradientthin film of B-Bi were conducted. It is difficult to control the residual volume to the thin film of boron because of its very light weight, and has not resulted in realization of thermal rectification. However, the knowledge about compositionally graded thin films including the Si-Fe system obtained in the process of this research became what is greatly useful for future research.

采用重力辅助脉冲激光烧蚀法(GAPLA)制备了热敏二极管样品。GAPLA是一种结合脉冲激光沉积和超重力效应的成分梯度薄膜制备方法。本研究的目的是研究利用薄膜材料的质量梯度进行热整流。作为一种适于揭示热整流效应的轻元素和重元素的组合，进行了成分梯度薄膜的GAPLA实验。由于硼薄膜的重量很轻，其残留量很难控制，也没有实现热精馏。然而，在本研究过程中获得的关于包括Si-Fe系统在内的成分梯度薄膜的知识对未来的研究非常有用。