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关于举行北京大学郭雪峰教授学术报告的通知

时间:2018-12-17 09:22      发布人:何秋云      阅读:82

报告题目:Challenges and Opportunities in Molecular–Scale Electronics

报 告 人:郭雪峰 教授北京大学

邀 请 人:秦安军

报告时间:2018年12月19日(周三)上午09:30

报告地点:北区发光材料与器件国重 502会议室

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报告摘要:

This talk will exemplify our on-going interest and great effort in developing efficient lithographic methodologies capable of creating molecular electronic devices through the combination of top-down micro/nanofabrication with bottom-up molecular assembly. These devices use nanogapped carbon nanomaterials (such as single-walled carbon nanotubes (SWCNTs) and graphene) as point contacts formed by electron beam lithography and precise oxygen plasma etching. Through robust amide linkages, functional molecular bridges terminated with diamine moieties are covalently wired into the carboxylic acid-functionalized nanogaps to form stable carbon electrode-molecule junctions with desired functionalities. We have used these approaches to reveal the dependence of the charge transport of individual metallo-DNA duplexes on p-stacking integrity, and fabricate molecular devices capable of realizing label-free, real-time electrical detection of biological interactions at the single-event level, or switching their molecular conductance upon exposure to external stimuli, such as ion, pH and light.

References
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[3] C. Jia, B. Ma, N. Xin, X. Guo, Acc. Chem. Res. 48, 2565 (2015).

[4] C. Jia, X. Guo, Chem. Soc. Rev., 42, 5642 (2013).

[5] X. Guo, Adv. Mater., 25, 3397 (2013).

[6] A. Feldmen, M. L. Steigerwald, X. Guo, C. Nuckolls, Acc. Chem. Res., 41, 1731 (2008).

[7] X. Guo, P. Kim, C. Nuckolls, et al., Science, 311, 356 (2006).

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[10] J. Wang, X. Guo, et al., Angew. Chem. Int. Ed. 53, 5038 (2014).

个人简介:

郭雪峰,北京大学教授,杰青,科技部重点研发计划首席科学家和 中组部“万人计划”领军人才。2001年于北京师范大学获得学士和硕士学位,2004年于中国科学院化学研究所获得博士学位。2004~2007年在哥伦比亚大学纳米中心、化学系和物理系从事博士后研究工作。2008年入职北京大学。主要从事分子材料和器件的研究,发展了制备碳基电极的稳定单分子器件的突破性方法,构建了国际首例稳定可控的单分子电子开关器件,发展了单分子电学检测新技术,开拓了单分子科学与技术研究的新领域。已发表包括2篇Science 在内的SCI论文147余篇(IF>10,57篇),引起了科学和工业界的广泛关注,《Scientific American》、《Nature》、《Science》等期刊和媒体以不同的形式亮点报道过25余次,应邀在Chem. Rev.Acc. Chem. Res.Chem. Soc. Rev.等国际权威期刊上撰写邀请综述多篇,表明这些工作处于国际领先地位,是世界上能开展单分子电子学研究为数不多的几个代表性课题组之一。拥有或申请了国际国内专利14项,曾获全国百篇优秀博士论文奖、日本化学会“The Distinguished Lectureship Award”奖、中国化学会青年化学奖、教育部自然科学奖一等奖、中国高等学校十大科技进展和中国科学十大进展等奖励。作为首席科学家承担了科技部重点研发计划,主持了国家自然科学基金仪器项目、重点项目和杰青项目。