Molecular devices for nanoelectronics and plasmonics
This thesis is focused on fabrication and characterization of molecular devices. In connection with molecular electronics the dielectrophoresis based method for trapping and attaching nanoscale double-stranded DNA between nanoelectrodes was developed. Moreover, the method was extended to self-assembled DNA nanostructures. The method allowed to obtain valuable information about electrical and dielectrophoretic properties of DNA. In addition, two general approaches to the utilization of DNA origami structures for the assembly of materials are described and experimentally demonstrated. In context of molecular plasmonics, a novel lithographic fabrication method for positioning dye molecules on plasmonic waveguides was developed. The potential for utilization of fluorescent molecules as couplers between far-field light and plasmons in microscale waveguides was explored. Energy transfer, mediated by surface plasmons, from donor molecules to acceptor molecules over ten micrometer distances was demonstrated. Moreover, it was showed that beside excitation and detection, fluorescent molecules can be used to manipulate properties of surface plasmons, e.g., to convert the frequency of propagating plasmons. ...
PublisherUniversity of Jyväskylä
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- Väitöskirjat 
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Shen, Boxuan (University of Jyväskylä, 2018)In this thesis, the potential applications of DNA self-assembled structures were explored in both nanoelectronics and plasmonics. The works can be divided into two parts: electrical characterization of unmodiﬁed multilayered ...
Linko, Veikko (University of Jyväskylä, 2011)This thesis is mainly focused on DNA molecules and especially on self-assembled DNA constructs and their potential applications in nanotechnology and molecular electronics. In the field of molecular electronics the ...
Isoniemi, Tommi (2010)The experiments described in this Master's thesis aim to assess the practicality of using dielectrophoresis (DEP) for assembling memory elements from carbon nanotubes (CNTs). These elements were field-effect transistors ...
Baieva, Svitlana; Ihalainen, Janne; Toppari, Jussi (American Institute of Physics, 2013)In this article we experimentally demonstrate the strong coupling between surface plasmon polaritons (SPP) and the S2 state of β-carotene. The SPPs are excited by prism coupling technique on a thin silver film with ...
Baieva, Svitlana (University of Jyväskylä, 2016)Miniaturization of optical elements and their integration to electronic circuits is limited by diffraction limit. It was realized that light being coupled to surface plasmons (SP) can overcome this limit. Employing also ...