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Исследование структур тетрафенилпорфирина с помощью сканирующего туннельного микроскопа

выпускная квалификационная работа бакалавра

Исследование структур тетрафенилпорфирина с помощью сканирующего туннельного микроскопа

Abstract

С помощью сканирующего туннельного микроскопа при комнатных условиях изучалась структура слоя порфирина с примесью Zn на кристалле графита, высаженного из раствора в толуоле. Получены СТМ изображения топографии поверхности, свидетельствующие о сложном ее рельефе. Локальные вольтамперные характеристики, измеренные при разных напряжениях смещения и разных направлениях его развертки свидетельствуют о сложном и неоднородном спектре электронных состояний в образце.

Structure of the porphyrin layer doped by Zn and deposited to graphite single crystal from solution in toluene was studied using a scanning tunneling microscope at ambient conditions. STM images of surface acquired give evidence of complicate of surface relief. The local current-voltage characteristics at different bias voltages scale and at different directions of scaling indicate the complicate and heterogeneous energy spectrum of electron states in the sample.

Keywords

tip-probe, bias voltage, локальный туннельный спектр, surface topography, сканирущий туннельный микроскоп, игла-зонд, напряжение смещения, local tunneling spectrum, топография Ð¿Ð¾Ð²ÐµÑ€Ñ Ð½Ð¾ÑÑ‚Ð¸, scanning tunneling microscope, туннельный ток, порфирин, tunnel current, porphyrin

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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