CAREER: Synthesis and Properties of Group IV Colloidal Quantum Wells

职业:IV族胶体量子阱的合成与性能

基本信息

  • 批准号:
    1847370
  • 负责人:
  • 金额:
    $ 64.14万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2019
  • 资助国家:
    美国
  • 起止时间:
    2019-04-01 至 2025-03-31
  • 项目状态:
    未结题

项目摘要

PART 1: NON-TECHNICAL SUMMARY The performance of computer processors has improved each year for the past five decades, leading to improvements in education, healthcare, scientific research, and national security. However, further improvements in computational performance cannot continue indefinitely using conventional Si-based computer processors. This NSF CAREER award project, supported by the Solid State and Materials Chemistry program in the Division of Materials Research, uses novel techniques developed in Prof. Matthew Panthani's research group at Iowa State University and extends them to prepare unique very thin (less than one thousandth of that of a human hair) sheets of silicon or a combination of silicon and germanium. By precisely controlling the sheet thickness, composition, and the molecules bound to the surface, the sheets have different properties that could eventually make computers perform much more effectively. The experimental methods are complemented by theoretical computer simulations to better understand which factors control the properties of these ultrathin sheets. This research contributes towards developing a new type of material that could, for example, improve the capabilities of computers and reduce the cost of computing. This eventual advancement in computational performance would have a broad positive impact on society by accelerating drug discovery and materials research, improving national security, and reducing energy consumption worldwide. Integrated with this research is an educational plan that broadens participation in the next-generation STEM workforce through two activities: (1) collaborative curriculum development with high school science teachers that conduct research in the Panthani research group during summers, with the aim of strengthening the interest of students from underrepresented groups in STEM research careers by highlighting the relevance of science to their lives, to reach socioeconomically disadvantaged students, Dr. Panthani for example partners with a teacher from a prison school; and (2) summer workshop activities that are designed to increase the likelihood that high school, undergraduate and community college students from diverse backgrounds pursue careers in science and engineering. PART 2: TECHNICAL SUMMARYThis NSF CAREER award project, supported by the Solid State and Materials Chemistry program in the Division of Materials Research, establishes synthetic strategies for Group IV semiconductor (Si, Ge, and their alloys) colloidal quantum wells (c-QWs). Prof. Matthew Panthani's research group at Iowa State University pursues research along two lines of studies (1) synthesizing Si-Ge alloy c-QWs with controlled composition, structure, and surface chemistry and (2) determining how structure and chemistry influence the resulting optoelectronic properties using experimental characterization and density functional theory. The starting point for synthesizing the Group IV c-QWs are Zintl compounds that contain atomically-thin Group IV element sheets that are separated by alkali metal atoms or salts. These Zintl compounds are deintercalated to liberate freestanding nanosheets, which are subsequently functionalized with organic or inorganic surface ligands to provide electronic passivation and stabilize the c-QWs in colloidal suspensions. Relevant optoelectronic properties of the c-QWs that are studied include band gaps and conduction/valence band extrema. Additionally, the research provides a platform for educational outreach centered around designing activities that help form a science identity in students. Science identity is a factor that is thought to be critical to one?s choice to pursue a career in science or engineering. The educational plan involves collaborative curriculum development with high school teachers who work in Prof. Matthew Panthani's lab and the development of a workshop session that aims to improve the likelihood that talented high school, undergraduate, and community college students, who participate in summer research, pursue a career paths in science and engineering.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
第一部分: 在过去的五十年里,计算机处理器的性能每年都在提高,从而改善了教育,医疗保健,科学研究和国家安全。然而,计算性能的进一步改进不能使用传统的基于Si的计算机处理器无限期地继续。该NSF CAREER奖项目由材料研究部的固态和材料化学项目支持,使用爱荷华州州立大学Matthew Panthani教授的研究小组开发的新技术,并将其扩展到制备独特的非常薄(不到人类头发的千分之一)的硅片或硅和锗的组合。通过精确控制薄片的厚度、成分和与表面结合的分子,薄片具有不同的性质,最终可以使计算机更有效地运行。实验方法通过理论计算机模拟来补充,以更好地了解哪些因素控制这些纸张的性能。这项研究有助于开发一种新型材料,例如,可以提高计算机的性能并降低计算成本。这种计算性能的最终进步将通过加速药物发现和材料研究,改善国家安全和减少全球能源消耗,对社会产生广泛的积极影响。与这项研究相结合的是一项教育计划,该计划通过两项活动扩大了下一代STEM劳动力的参与:(1)与高中科学教师合作开发课程,这些教师在夏季在潘塔尼研究小组进行研究,目的是通过强调科学与他们生活的相关性,加强来自代表性不足群体的学生对STEM研究职业的兴趣,例如,Panthani博士与监狱学校的一名教师合作,以接触社会经济处境不利的学生;(2)暑期讲习班活动,旨在增加来自不同背景的高中生、本科生和社区大学生从事科学和工程职业的可能性。第二部分: 技术总结这个NSF职业奖项目,由材料研究部的固态和材料化学计划支持,建立了第四族半导体(Si,Ge及其合金)胶体量子威尔斯(c-QW)的合成策略。爱荷华州州立大学的Matthew Panthani教授的研究小组沿着沿着两条研究路线进行研究(1)合成具有受控成分,结构和表面化学的Si-Ge合金c-QW和(2)使用实验表征和密度泛函理论确定结构和化学如何影响所得的光电性能。合成IV族c-QW的起点是Zintl化合物,其含有被碱金属原子或盐分开的原子薄的IV族元素片。这些Zintl化合物被脱嵌以释放独立的纳米片,其随后用有机或无机表面配体官能化以提供电子钝化并稳定胶体悬浮液中的c-QW。研究的c-QW的相关光电性质包括带隙和导/价带极值。此外,这项研究还提供了一个以设计活动为中心的教育推广平台,这些活动有助于在学生中形成科学身份。科学身份是一个因素,被认为是一个关键?我们选择从事科学或工程职业。该教育计划涉及与在Matthew Panthani教授实验室工作的高中教师合作开发课程,以及开发一个研讨会,旨在提高有才华的高中,本科和社区大学学生参加夏季研究的可能性,该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准。

项目成果

期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Optoelectronic properties of methyl-terminated germanane
  • DOI:
    10.1063/1.5111011
  • 发表时间:
    2019-07-29
  • 期刊:
  • 影响因子:
    4
  • 作者:
    Livache, Clement;Ryan, Bradley J.;Lhuillier, Emmanuel
  • 通讯作者:
    Lhuillier, Emmanuel
Silicon nanocrystals as signal transducers in ionophore-based fluorescent nanosensors
  • DOI:
    10.1016/j.snb.2020.129350
  • 发表时间:
    2021-01-08
  • 期刊:
  • 影响因子:
    8.4
  • 作者:
    Ferris,Mark S.;Chesney,Ashley P.;Cash,Kevin J.
  • 通讯作者:
    Cash,Kevin J.
Silicene, Siloxene, or Silicane? Revealing the Structure and Optical Properties of Silicon Nanosheets Derived from Calcium Disilicide
  • DOI:
    10.1021/acs.chemmater.9b04180
  • 发表时间:
    2020-01-28
  • 期刊:
  • 影响因子:
    8.6
  • 作者:
    Ryan, Bradley J.;Hanrahan, Michael P.;Panthani, Matthew G.
  • 通讯作者:
    Panthani, Matthew G.
Surface Chemistry of Ternary Nanocrystals: Engineering the Deposition of Conductive NaBiS2 Films
  • DOI:
    10.1021/acs.chemmater.0c01689
  • 发表时间:
    2020-06
  • 期刊:
  • 影响因子:
    8.6
  • 作者:
    Alan M. Medina-Gonzalez;Bryan A. Rosales;Umar H Hamdeh;Matthew G. Panthani;J. Vela
  • 通讯作者:
    Alan M. Medina-Gonzalez;Bryan A. Rosales;Umar H Hamdeh;Matthew G. Panthani;J. Vela
Chlorination of Hydrogenated Silicon Nanosheets Revealed by Solid-State Nuclear Magnetic Resonance Spectroscopy
  • DOI:
    10.1021/acs.chemmater.2c02980
  • 发表时间:
    2023-01
  • 期刊:
  • 影响因子:
    8.6
  • 作者:
    Rick W. Dorn;Bradley J. Ryan;Sujeewa N S Lamahewage;Mark V. Dodson;J. Essner;R. Biswas;Matthew G. Panthani;Aaron J. Rossini
  • 通讯作者:
    Rick W. Dorn;Bradley J. Ryan;Sujeewa N S Lamahewage;Mark V. Dodson;J. Essner;R. Biswas;Matthew G. Panthani;Aaron J. Rossini
{{ 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 }}

Matthew Panthani其他文献

Matthew Panthani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('Matthew Panthani', 18)}}的其他基金

Group IV Semiconductors Derived From Zintl Phases
Zintl 相衍生的 IV 族半导体
  • 批准号:
    2350483
  • 财政年份:
    2024
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant

相似国自然基金

新型滤波器综合技术-直接综合技术(Direct synthesis Technique)的研究及应用
  • 批准号:
    61671111
  • 批准年份:
    2016
  • 资助金额:
    58.0 万元
  • 项目类别:
    面上项目

相似海外基金

CAREER: Precise Synthesis of Polymers with Tunable Properties Through Stereocontrolled Olefin Metathesis
职业:通过立体控制烯烃复分解精确合成具有可调性能的聚合物
  • 批准号:
    2238888
  • 财政年份:
    2023
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Solvent-Free Synthesis of Polymeric Nanostructures with Targeted Properties
职业:无溶剂合成具有目标性能的聚合物纳米结构
  • 批准号:
    2144171
  • 财政年份:
    2022
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Coordination Polymer Superlattices with Tailored Properties through Chemical Vapor Deposition Synthesis
职业:通过化学气相沉积合成具有定制特性的配位聚合物超晶格
  • 批准号:
    1848046
  • 财政年份:
    2019
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Composition, mechanical properties, and synthesis of the Caulobacter crescentus stalk
职业:新月柄杆菌茎的组成、机械性能和合成
  • 批准号:
    1553004
  • 财政年份:
    2016
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Multiscale Modeling of Gas-assisted Synthesis and Properties of Porous Nanocomposite Materials
职业:多孔纳米复合材料的气体辅助合成和性能的多尺度建模
  • 批准号:
    1554589
  • 财政年份:
    2016
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Standard Grant
CAREER: Synthesis, Characterization and Physical Properties of Pr-Based Heavy Fermions
职业:镨基重费米子的合成、表征和物理性质
  • 批准号:
    1541230
  • 财政年份:
    2015
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Synthesis, Microstructure, and Properties of Novel Magnesium-based Nanoporous Materials
职业:新型镁基纳米多孔材料的合成、微观结构和性能
  • 批准号:
    1449607
  • 财政年份:
    2014
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Synthesis of Novel Classes of Depolymerizable Polymers with Well-Defined Response Properties
职业:合成具有明确响应特性的新型可解聚聚合物
  • 批准号:
    1150969
  • 财政年份:
    2012
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Synthesis of Covalent Organic Frameworks with Novel Optoelectronic Properties
职业:具有新型光电特性的共价有机框架的合成
  • 批准号:
    1056657
  • 财政年份:
    2011
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
CAREER: Synthesis, Characterization and Physical Properties of Pr-Based Heavy Fermions
职业:镨基重费米子的合成、表征和物理性质
  • 批准号:
    1056515
  • 财政年份:
    2011
  • 资助金额:
    $ 64.14万
  • 项目类别:
    Continuing Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了