Electronic and Optical Properties of Methylated Adamantanes.

Electronic and Optical Properties of Methylated Adamantanes.
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甲基化金刚烷的电子和光学性质

DOI:
10.1021/jacs.7b05150
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发表时间:
2017
影响因子:
15
通讯作者:
T. Möller
T. Möller
中科院分区:
化学1区
文献类型:
--
作者:
T. Rander;T. Bischoff;A. Knecht;D. Wolter;R. Richter;A. Merli;T. Möller

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最近的理论工作已经确定了功能化的金刚烷作为有前途的候选人的荧光纳米材料的剪裁。然而,到目前为止,证实可以通过官能化实现光学间隙调谐的实验仅发现荧光被淬灭的系统。我们通过研究一系列甲基化金刚烷来解决这个缺点。第一次,一类功能化的金刚烷显示在气相中的荧光。为了了解光学和电子结构性质随官能化程度的演变,使用光电子能谱来绘制占据的价电子结构,而吸收和荧光光谱产生关于未占据的电子结构和激发后弛豫行为的信息。所得的光谱建模(时间依赖性)密度泛函理论。这些结果表明,它是可能的,以克服荧光猝灭时,功能化金刚烷和代表一个重要的步骤,以适合于应用的方式定制这些和其他半导体颗粒的电子结构。
Recent theoretical work has identified functionalized diamondoids as promising candidates for the tailoring of fluorescent nanomaterials. However, experiments confirming that optical gap tuning can be achieved through functionalization have, up until now, found only systems where fluorescence is quenched. We address this shortcoming by investigating a series of methylated adamantanes. For the first time, a class of functionalized diamondoids is shown to fluoresce in the gas phase. In order to understand the evolution of the optical and electronic structure properties with degree of functionalization, photoelectron spectroscopy was used to map the occupied valence electronic structure, while absorption and fluorescence spectroscopies yielded information about the unoccupied electronic structure and postexcitation relaxation behavior. The resulting spectra were modeled by (time-dependent) density functional theory. These results show that it is possible to overcome fluorescence quenching when functionalizing diamondoids and represent a significant step toward tailoring the electronic structure of these and other semiconductor particles in a manner suitable to applications.
氧掺杂纳米金刚石:合成和功能化。
DOI: 10.1021/ol901089h
发表时间: 2009
期刊: Organic letters
影响因子: 5.2
作者:
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DOI: 10.1063/1.1677795
发表时间: 1972
影响因子: 4.4
作者:
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通讯作者: J. W. Raymonda
DOI: 10.1021/ja302258q
发表时间: 2012-08-22
影响因子: 15
作者:
Fokin, Andrey A.;Chernish, Lesya V.;Schreiner, Peter R.
通讯作者: Schreiner, Peter R.
DOI: 10.1002/chin.201430060
发表时间: 2014-01
期刊: Synthesis
影响因子: --
作者:
Paul Kahl;B. Tkachenko;Anatoliy A. Novikovsky;Jonathan Becker;J. Dahl;R. Carlson;A. Fokin;P. Schreiner
通讯作者: Paul Kahl;B. Tkachenko;Anatoliy A. Novikovsky;Jonathan Becker;J. Dahl;R. Carlson;A. Fokin;P. Schreiner
DOI: 10.1063/1.4774268
发表时间: 2013-01
期刊: The Journal of chemical physics
影响因子: --
作者:
T. Rander;M. Staiger;R. Richter;T. Zimmermann;L. Landt;D. Wolter;J. Dahl;R. Carlson;B. Tkachenko;N. Fokina;P. Schreiner;T. Möller;C. Bostedt
通讯作者: T. Rander;M. Staiger;R. Richter;T. Zimmermann;L. Landt;D. Wolter;J. Dahl;R. Carlson;B. Tkachenko;N. Fokina;P. Schreiner;T. Möller;C. Bostedt