Multi-Quantum-Well and Superlattice Mercuric-Telluride/ Cadmium-Telluride Structures at High Hydrostatic Pressures

高静水压力下的多量子阱和超晶格碲化汞/碲化镉结构

• 批准号: 8914486
• 负责人: William Paul
• 金额: $ 9.5万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-06-01 至 1992-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8914486&HistoricalAwards=false
• 关键词: Multi; Quantum; Well; Superlattice; Mercuric

The objective of this research is to advance the understanding of the fundamental and device properties of multi-quantum-well and superlattice structures fabricated from layers of mercury- telluride and cadmium-telluride. One will measure the optical absorption and photoluminescence under conditions of high hydrostatic pressure produced in diamond anvil cells. The changes in the intrinsic band structures of both HgTe and CdTe under pressure are well understood and thus large changes in the optical properties of the quantum wells and superlattices are anticipated and the results will permit a critical confrontation of theoretical predictions of the MQW and SL structures and the experimental results. The MQW and SL HgTe/CdTe samples will be provided by Prof. J. F. Schetzina of North Carolina State Univeristy. These are state-of-the-art molecular beam epitaxy grown samples which are well characterized by structural, electrical and optical measurements at ambient pressure.

这项研究的目的是为了增进对 多量子阱的基本特性和器件特性 以及由汞层制成的超晶格结构， 碲化物和碲化镉。 我们将测量 在高吸收和光致发光的条件下， 在金刚石砧单元中产生的流体静压。 的 HgTe和CdTe的本征能带结构的变化 在压力下是很好理解的，因此， 量子威尔斯和超晶格的光学性质是 预期和结果将允许一个关键的对抗 MQW和SL结构的理论预测以及 试验结果 MQW和SL HgTe/CdTe样品将 由J. F.北卡罗来纳州的Schetzina 大学。 这些是最先进的分子束外延 生长的样品具有良好的结构特征， 在环境压力下进行电学和光学测量。