Sensing Mechanism and Persistence of Semiconductor Gas Sensors on Nanostructured Surfaces
纳米结构表面半导体气体传感器的传感机制和持久性
基本信息
- 批准号:1031111
- 负责人:
- 金额:$ 27.54万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2010
- 资助国家:美国
- 起止时间:2010-09-01 至 2015-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Abstract1031111Mengyan ShenUniversity of Massachusetts, LowellThe objective of this project is to obtain a fundamental understanding of the sensing mechanism, persistence, and reliability of semiconductor oxide gas sensors on substrates formed through femtosecond laser nanostructuring combined with soft nanolithography. At room temperature, these recently discovered structures exhibit a higher sensitivity than conventional semiconductor gas sensors operating at 450°C. This eliminates problems such as high energy consumption, rapid degradation, and poor reliability. Since the low-temperature sensing mechanism cannot be ascribed solely to the high surface-to-bulk ratio of the substrates, the molecular-level function of these sensors will be studied through a physics-based predictive model. Successful outcomes from this research are expected to (a) contribute to the areas of gas sensing and nanoscience and technology; and (b) enhance our knowledge of applications of bionics in enhancing the functions of detectors. The proposed research will lead to energy-saving and cost-effective sensors with a positive impact on the environment, which benefits consumers and society as a whole.Educational and outreach programs based on this research will broaden the participation of women and other underrepresented groups in science and technology, and train future multidisciplinary scientists and engineers.
摘要沈梦燕马萨诸塞州,洛厄尔大学本项目的目的是获得一个基本的了解的传感机制,持久性和可靠性的半导体氧化物气体传感器的基板上形成的飞秒激光纳米结构结合软纳米光刻。在室温下,这些最近发现的结构表现出比在450°C下工作的传统半导体气体传感器更高的灵敏度。这消除了诸如高能耗、快速退化和低可靠性的问题。由于低温传感机制不能仅仅归因于基板的高表面-体积比,这些传感器的分子水平的功能将通过基于物理的预测模型进行研究。这项研究的成功成果预计将(a)有助于气体传感和纳米科学与技术领域;(B)提高我们对仿生学在增强探测器功能方面的应用的认识。这项研究将有助于开发出对环境具有积极影响的节能和成本效益高的传感器,从而使消费者和整个社会受益。基于这项研究的教育和推广计划将扩大妇女和其他代表性不足的群体对科学和技术的参与,并培养未来的多学科科学家和工程师。
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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Mengyan Shen其他文献
Second-harmonic generation resonant to the 1S orthoexciton level of cuprous oxide.
产生与氧化亚铜 1S 正激子能级共振的二次谐波。
- DOI:
10.1103/physrevb.53.13477 - 发表时间:
1996 - 期刊:
- 影响因子:0
- 作者:
Mengyan Shen;S. Koyama;Mitsuhiro Saito;T. Goto;Noritaka Kuroda - 通讯作者:
Noritaka Kuroda
Highly in-plane anisotropic 2D ReSe<sub>2</sub> for polarization-sensitive photodetectors
- DOI:
10.1016/j.physb.2023.415000 - 发表时间:
2023-08-15 - 期刊:
- 影响因子:
- 作者:
Shuang Song;Guoping Zhang;Jie Qiao;Bingxu Chen;Mengyan Shen;Xiaocong Yuan;Michael G. Somekh;Fu Feng - 通讯作者:
Fu Feng
Nonlinear optical properties of gold with intense femtosecond laser excitations above the damage threshold
高于损伤阈值的强飞秒激光激发金的非线性光学特性
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:1.6
- 作者:
Zibo Wang;Zhe Kan;Mengyan Shen - 通讯作者:
Mengyan Shen
The 2022 extreme drought in the Yangtze River Basin: Characteristics, causes and response strategies
2022年长江流域特大干旱特征、成因及应对策略
- DOI:
10.1002/rvr2.23 - 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
Miaomiao Ma;Yanping Qu;Juan Lyu;Xuejun Zhang;Z. Su;Hui Gao;Xiaojing Yang;Xixi Chen;Tianliang Jiang;Jiexiang Zhang;Mengyan Shen;Zhe Wang - 通讯作者:
Zhe Wang
Mengyan Shen的其他文献
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{{ truncateString('Mengyan Shen', 18)}}的其他基金
QLC: EAGER: Study of the hydrocarbon quantum formation process with carbon 12 and carbon 13 and optical control
QLC:EAGER:碳12和碳13碳氢化合物量子形成过程及光控制研究
- 批准号:
1836540 - 财政年份:2018
- 资助金额:
$ 27.54万 - 项目类别:
Standard Grant
Manufacturing of Hydrocarbon Fuels from Sunlight, Carbon Dioxide and Water with Metal Nanostructures: Mechanistic Investigations to Improve Performance
利用阳光、二氧化碳和水利用金属纳米结构制造碳氢化合物燃料:提高性能的机理研究
- 批准号:
1161475 - 财政年份:2012
- 资助金额:
$ 27.54万 - 项目类别:
Standard Grant
SGER: Study soft nanolithography with femtosecond laser irradiations for chemical and gas sensing
SGER:研究用于化学和气体传感的飞秒激光照射软纳米光刻
- 批准号:
0904445 - 财政年份:2009
- 资助金额:
$ 27.54万 - 项目类别:
Standard Grant
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