Laser-Assisted Growth and Analysis of Crystalline Organic Semiconductor Multiple Layer Structures for Optoelectronic Applications

用于光电应用的晶体有机半导体多层结构的激光辅助生长和分析

基本信息

  • 批准号:
    9007072
  • 负责人:
  • 金额:
    $ 5万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1990
  • 资助国家:
    美国
  • 起止时间:
    1990-10-01 至 1991-09-30
  • 项目状态:
    已结题

项目摘要

Recently, the investigators have demonstrated that multiple quantum well structures consisting of very thin (10A) alternating layers of two crystalline organic semiconductors can be grown by the new ultrahigh vacuum process of organic molecular beam epitaxy (OMBE). X-ray and birefringence data indicate that the structures are highly ordered both in the stacking direction, as well as across the water surface. Thus, the growth is considered to be "quasi-epitaxial" in that this ordering occurs even though the lattices of the two organic materials are incommensurate. Control of the crystalline texture is strongly influenced by the dependence of molecular surface mobility on temperature. For example, the highest degree of crystalline ordering is observed for substrates cooled to less than 100 K. In the proposed work, the investigator will use a laser in conjunction with their OMBE system to locally heat the cooled substrate during growth, thus creating highly defined regions of both ordered and disordered growth. This fine control of both layer order, as well as the already demonstrated ability to grow very thin films, should allow them to understand, and hence control the growth processes to a high degree. This control will be utilized to fabricate several optical devices such as gratings and waveguides. Futhermore, by making structures consisting of very thin ( 10 A), deeply layered ( 100 period) multi-layered stacks, they may be able to break the centrosymmetry characteristic of crystalline semiconductors. They, in turn, should lead to a significant second-order non-linear optical response. Thus, they will grow such structures and probe their linear and non-linear optical properties using the same laser system employed for the laser- assisted growth experiments.
最近,调查人员 证明了多量子 井结构由非常 两个薄(10A)交替层 晶体有机半导体 可以通过新的植物生长 有机分子真空过程 束外延(OMBE)。 x射线和 双折射数据表明, 结构高度有序, 在堆叠方向上, 就像在水面上一样。 因此,在本发明中, 这种增长被认为是 “准外延”,因为这 排序发生,即使 两种有机晶格 材料不相称。 晶体结构的控制 的强烈影响 分子表面依赖性 流动性对温度的影响 为 例如, 观察到晶体有序, 基板冷却到低于100 K. 在拟议的工作中, 调查人员将使用激光 与他们的OMBE系统结合 以局部加热冷却的衬底 在生长过程中, 定义的有序和 无序生长。 了这样一个好 控制两个层的顺序,以及 因为已经证明的能力 要生长非常薄的薄膜, 让他们能够理解, 控制生长过程, 高度。 该控件将 用于制造多个 例如光栅的光学器件, 波导管. 通过使 由非常薄的 (10 A),深层(100 时期)多层堆叠,它们 也许能打破 中心对称特性 晶体半导体 他们, 反过来,应该导致一个 显著二阶非线性 光学响应 因此,他们将 生长这样的结构并探测它们的 线性和非线性光学 使用相同的激光器 系统用于激光器- 辅助生长实验

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

William Steier其他文献

Dyskeratosis congenita: relationship to Fanconi's anemia.
先天性角化不良:与范科尼贫血的关系。
  • DOI:
    10.1182/blood.v39.4.510.510
  • 发表时间:
    1972
  • 期刊:
  • 影响因子:
    20.3
  • 作者:
    William Steier;G. Van Voolen;Victor J. Selmanowitz
  • 通讯作者:
    Victor J. Selmanowitz
Fanconi's anemia and dyskeratosis congenita.
范科尼贫血和先天性角化不良。
  • DOI:
    10.1001/jama.1971.03180380069022
  • 发表时间:
    1971
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Victor J. Selmanowitz;G. A. V. Voolen;William Steier
  • 通讯作者:
    William Steier

William Steier的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('William Steier', 18)}}的其他基金

LiNbO3 Sub-Micron Film Technology- A New Approach to Guided Wave Nonlinear and Electro-optic Devices.
LiNbO3 亚微米薄膜技术 - 导波非线性和电光器件的新方法。
  • 批准号:
    0601339
  • 财政年份:
    2006
  • 资助金额:
    $ 5万
  • 项目类别:
    Standard Grant

相似海外基金

In-operando Metrology Assisted Exploration of Self-limiting Growth and Surface Chemistries Mechanisms of Atomically Thin Films
操作中计量辅助探索原子薄膜的自限生长和表面化学机制
  • 批准号:
    2497024
  • 财政年份:
    2020
  • 资助金额:
    $ 5万
  • 项目类别:
    Studentship
RPAS-Assisted Validation of a Model Depicting Crop Residue Cover and its Effects on Canola Growth and Yield in Saskatchewan
RPAS 辅助验证描绘作物残茬覆盖的模型及其对萨斯喀彻温省油菜籽生长和产量的影响
  • 批准号:
    555770-2020
  • 财政年份:
    2020
  • 资助金额:
    $ 5万
  • 项目类别:
    Engage Plus Grants for Colleges
Hydrogen-assisted fatigue crack growth under gaseous environment interpreted by a thermally activated process
热激活过程解释气体环境下氢辅助疲劳裂纹扩展
  • 批准号:
    20K04161
  • 财政年份:
    2020
  • 资助金额:
    $ 5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Assisted migration to address climate change in forestry: validating habitat and growth projections
协助移民应对林业气候变化:验证栖息地和增长预测
  • 批准号:
    330527-2013
  • 财政年份:
    2019
  • 资助金额:
    $ 5万
  • 项目类别:
    Discovery Grants Program - Individual
Ultrasonic Assisted Cold Sintering: Kinetics of Densification and Grain Growth Study in Binary Oxide Ceramics
超声波辅助冷烧结:二元氧化物陶瓷致密化动力学和晶粒生长研究
  • 批准号:
    1728634
  • 财政年份:
    2017
  • 资助金额:
    $ 5万
  • 项目类别:
    Continuing Grant
Assisted migration to address climate change in forestry: validating habitat and growth projections
协助移民应对林业气候变化:验证栖息地和增长预测
  • 批准号:
    330527-2013
  • 财政年份:
    2016
  • 资助金额:
    $ 5万
  • 项目类别:
    Discovery Grants Program - Individual
Development of ZnO-based semiconductor flexible device fabrication processes by using atomic-oxygen-assisted molecular beam epitaxy growth
利用原子氧辅助分子束外延生长开发ZnO基半导体柔性器件制造工艺
  • 批准号:
    16K06297
  • 财政年份:
    2016
  • 资助金额:
    $ 5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Investigation of hydrogen assisted crack growth mechanism in very long life regime based on the evaluation of local mechanical properties
基于局部力学性能评估的超长寿命状态下氢辅助裂纹扩展机制研究
  • 批准号:
    15K05686
  • 财政年份:
    2015
  • 资助金额:
    $ 5万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Assisted migration to address climate change in forestry: validating habitat and growth projections
协助移民应对林业气候变化:验证栖息地和增长预测
  • 批准号:
    330527-2013
  • 财政年份:
    2015
  • 资助金额:
    $ 5万
  • 项目类别:
    Discovery Grants Program - Individual
Assisted migration to address climate change in forestry: validating habitat and growth projections
协助移民应对林业气候变化:验证栖息地和增长预测
  • 批准号:
    330527-2013
  • 财政年份:
    2014
  • 资助金额:
    $ 5万
  • 项目类别:
    Discovery Grants Program - Individual
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了