CAS: Collaborative Research: Integrative Learning of Fluorescence Fluctuations in Perovskite Quantum Dots Using A Data Science Assisted Single-Particle Approach
CAS:协作研究:使用数据科学辅助单粒子方法综合学习钙钛矿量子点荧光涨落
基本信息
- 批准号:2203700
- 负责人:
- 金额:$ 22万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-09-01 至 2025-08-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
With support from the Macromolecular, Supramolecular, and Nanochemistry (MSN) program in the Division of Chemistry, Professors Jing Zhao and Kun Chen of the University of Connecticut and Professor Ou Chen of Brown University are combining advanced fluorescence microscopy techniques with data science approaches to study the blinking behavior of individual perovskite quantum dots (QDs). The fluorescence coming from a single QD is not constant, but rather exhibits periods of light emission followed by periods of darkness. In short, they blink. Blinking is a universal behavior of QDs and understanding its mechanism is critical to many applications. However, determining the blinking mechanism is challenging because it must be studied in one QD at a time, and one must study many QDs to draw meaningful conclusions. To address this challenge, Professors Zhao, Chen, and Chen along with their students will apply modern statistical learning approaches to analyze fluorescence blinking in many perovskite QDs with varying compositions. The discoveries could have implications for how QDs are used in applications ranging from LED displays to biological imaging. The research methods and findings will be integrated into outreach activities and virtual chemistry laboratory modules, as well as workshops introducing data science techniques to chemistry students.The project will apply modern statistical learning and data science approaches to analyze fluorescence fluctuations in single perovskite QDs with the goal of gaining mechanistic insight that is free of the implicit bias often encountered when interpreting data from single-particle measurements. The project will leverage the knowledge and knowhow from three investigators who are experts in materials science, single-particle spectroscopy, and modern data science approaches to measure and analyze the fluorescence signals of a large number of individual perovskite QDs. The team will examine QDs with varying composition in their cation and anion sites, compositions, and lattice distortions using optical microscopy techniques, and through the application of statistically rigorous analysis methods, gain a deeper understanding of the photophysical mechanisms that govern their blinking behavior.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.
在化学系大分子,超分子和纳米化学(MSN)计划的支持下,康涅狄格大学的Jing Zhao和Kun Chen教授以及布朗大学的Ou Chen教授将先进的荧光显微镜技术与数据科学方法相结合,研究单个钙钛矿量子点(QD)的闪烁行为。来自单个QD的荧光不是恒定的,而是呈现出发光周期,然后是黑暗周期。简而言之,他们眨眼。闪烁是量子点的一种普遍行为,理解其机制对许多应用至关重要。 然而,确定闪烁机制是具有挑战性的,因为它必须一次在一个QD中进行研究,并且必须研究许多QD才能得出有意义的结论。为了应对这一挑战,赵教授、陈教授和陈教授沿着他们的学生将应用现代统计学习方法来分析许多具有不同成分的钙钛矿量子点中的荧光闪烁。这些发现可能对量子点如何用于从LED显示器到生物成像的应用产生影响。研究方法和结果将纳入外联活动和虚拟化学实验室模块,以及向化学专业学生介绍数据科学技术的研讨会。该项目将应用现代统计学习和数据科学方法来分析单钙钛矿量子点的荧光波动,目的是获得机制洞察力,而这种洞察力在解释单钙钛矿量子点的数据时经常会遇到隐含的偏见。粒子测量该项目将利用三位研究人员的知识和技术,他们是材料科学,单粒子光谱学和现代数据科学方法的专家,以测量和分析大量单个钙钛矿量子点的荧光信号。该团队将使用光学显微镜技术检查在其阳离子和阴离子位点,组成和晶格畸变中具有不同组成的量子点,并通过应用统计学上严格的分析方法,该奖项反映了NSF的法定使命,并通过使用基金会的智力价值进行评估,被认为值得支持和更广泛的影响审查标准。
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)
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Ou Chen其他文献
Experimental study on treatment of retinitis pigmentosa by inducing Muller cell reprogramming with Lycii Fructus and Salviae Miltiorrhizae Radix et Rhizoma
- DOI:
10.19540/j.cnki.cjcmm.20240115.707 - 发表时间:
2024-01-01 - 期刊:
- 影响因子:0
- 作者:
Song Houpan;Ou Chen;Peng Qinghua - 通讯作者:
Peng Qinghua
Emergent quantum properties from low-dimensional building blocks and their superlattices
- DOI:
10.1007/s12274-024-6984-8 - 发表时间:
2024-10-21 - 期刊:
- 影响因子:9.000
- 作者:
Ken Seungmin Hong;Ou Chen;Yusong Bai - 通讯作者:
Yusong Bai
A systematic review of parental burnout and related factors among parents
- DOI:
10.1186/s12889-024-17829-y - 发表时间:
2024-02-05 - 期刊:
- 影响因子:3.600
- 作者:
Xiaohe Ren;Yingying Cai;Jingyi Wang;Ou Chen - 通讯作者:
Ou Chen
Experimental and Numerical Investigation on the Dynamic Responses of the Remaining Structure under Impact Loading with Column Being Removed
拆除柱后剩余结构冲击荷载动力响应的试验与数值研究
- DOI:
10.1007/s12205-021-1026-5 - 发表时间:
2021-03 - 期刊:
- 影响因子:2.2
- 作者:
Ou Chen;Liu Jun;Sun Lei;Xiao Zhimin;Cheng Yi;Liu Mingqing;Zhao Futian;Zhen Mengyang;Wang Yue - 通讯作者:
Wang Yue
Plasmonic effect on photon antibunching and blinking behavior of single quantum dots near gold nanoparticles
金纳米粒子附近单量子点的光子反聚束和闪烁行为的等离子体效应
- DOI:
10.1117/12.2075589 - 发表时间:
2015 - 期刊:
- 影响因子:0
- 作者:
Swayandipta Dey;Yadong Zhou;X. Tian;Julie A. Jenkins;Ou Chen;Shengli Zou;J. Zhao - 通讯作者:
J. Zhao
Ou Chen的其他文献
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{{ truncateString('Ou Chen', 18)}}的其他基金
Collaborative Research: Scalable Nanomanufacturing of Perovskite-Analogue Nanocrystals via Continuous Flow Reactors
合作研究:通过连续流反应器进行钙钛矿类似物纳米晶体的可扩展纳米制造
- 批准号:
2315997 - 财政年份:2024
- 资助金额:
$ 22万 - 项目类别:
Standard Grant
CAREER: Understanding Quasicrystalline Superstructures Formed from Pyramidal Nanocrystals
职业:了解由金字塔形纳米晶体形成的准晶超结构
- 批准号:
1943930 - 财政年份:2020
- 资助金额:
$ 22万 - 项目类别:
Continuing Grant
EAGER: COLLABORATIVE RESEARCH: Hybrid Quantum Dot-Metal Nanocrystals for Photoreduction of CO2: Synthesis, Spectroscopy and Catalysis
渴望:合作研究:用于二氧化碳光还原的混合量子点金属纳米晶体:合成、光谱学和催化
- 批准号:
1936223 - 财政年份:2019
- 资助金额:
$ 22万 - 项目类别:
Standard Grant
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