Sökning: "2D electronic spectroscopy"

Visar resultat 1 - 5 av 25 avhandlingar innehållade orden 2D electronic spectroscopy.

1. 1. Coherent Multidimensional Spectroscopy: Development of Efficient Data Acquisition and Analyses of Quantum Dot 2D Spectra

   Författare :Zhengjun Wang; NanoLund: Centre for Nanoscience; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Coherent Multidimensional Spectroscopy; quantum beating; quantum coherence; 2D electronic spectroscopy; 2D fluorescence spectroscopy; Compressed Sensing theory; CdSe QDs; LH2;

   Sammanfattning : Coherent multidimensional spectroscopy (CMDS) is the most complete nonlinear optical technique based on the interaction of multiple short laser pulses with matter. It has grown to play a significant role in studies of optoelectronic materials and pigment protein complexes. LÄS MER

3. 2. Surface analysis of low dimensional materials : revealing their electronic properties by advanced spectroscopy

   Författare :Vladimir Miranda la Hera; Thomas Wågberg; Eduardo Gracia-Espino; Tomas Edvinsson; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Low-dimensional materials; surface science; surface-sensitive techniques; angle-resolved photoemission spectroscopy; ultraviolet photoemission spectroscopy; electronic properties;

   Sammanfattning : Low-dimensional materials (0D, 1D, 2D) have been widely used to develop modern miniaturized (micro- and nano-) technology. The use of these materials come from their extraordinary optical, electrical, thermal, and mechanical properties, which are very different from the bulk crystal. LÄS MER

4. 3. Synchrotron Radiation Studies of Molecular Building Blocks for Functional Materials

   Författare :Teng Zhang; Carla Puglia; Nils Martensson; Svante Svensson; Valeria Lanzilotto; Albano Cossaro; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Synchrotron radiation study; Functional materials; Molecular building blocks; Electron donor; 2D material; Gas-phase; Organic thin film; Electronic structure; Molecule-molecule interaction; Molecule-substrate interaction; Photoelectron spectroscopy; PES; XPS; Near edge X-ray absorption fine structure; NEXAFS; X-ray Absorption Spectroscopy; XAS; Au 111 ; Cu 111 ; Surface; Interface; Electronic structure; H-bonding; Cobalt phthalocyanine; CoPc; Triphenylamine; TPA; DPTA; m-MTDATA; Melamine; Biphenylene; Carbon nitride; Graphenylene; Density functional theory; DFT; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

   Sammanfattning : The research on new materials is a primary driving force for progress in human society. One of the most significant research topic nowadays is the development of new functional materials for technological applications, like perovskite implemented in solar cells, and graphene as a representative for the new 2D materials family. LÄS MER

5. 4. Revealing Electronic Structures of 2D Molecular Crystals and Correlating Them with Optoelectronic Properties

   Författare :Qingqing Wang; Mats Fahlman; Xianjie Liu; Heiko Peisert; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 2D molecular crystals; Crystal engineering; Electronic structure; Organic field effect transistors;

   Sammanfattning : Electronic band structure serves as the foundation for understanding the physics of semiconductors. The electronic band structure of inorganic semiconductors has been well understood based on ideal single crystal samples, thus actually laid the foundation for the prospering development of inorganic semiconductor devices. LÄS MER

7. 5. Single-­molecule spectroscopy of π-­conjugated polymers

   Författare :Oleg Mirzov; Kemisk fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fluorescence lifetime; low temperature; spectral diffusion; blinking; MEH-PPV; Single-molecule spectroscopy; π-conjugated polymers; 2D polarization; Monte Carlo; energy transfer;

   Sammanfattning : When applied to condensed-matter samples of large organic molecules, optical spectroscopy faces the problem of inhomogeneous broadening caused by the diversity of environments and conformations that sample molecules are subjected to. This severely limits the information that can be extracted from optical spectra. LÄS MER