Bachelor Theses

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2020-11-12
12:57
[PUBDB-2020-04413] Bachelor Thesis
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Degradation of perovskite solar cells by X-rays
1-24 () = Bachelorarbeit, Universität Hamburg, 2020
Perovskite solar cells are a promising photovoltaic technology with their low production costsand high efficiencies. The main reason the technology is not ready for the market yet is the instability of the perovskite absorber and its fast degradation. [...]
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2020-11-12
12:52
[PUBDB-2020-04411] Bachelor Thesis
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Analysis of Synchrotron-Based X-Ray Fluorescence Measurements from Multiple Detector Modules
1-36 () = Bachelorarbeit, Universität Hamburg, 2020
X-ray fluorescence measurements are an ideal method for measuring the elemental distributions in samples but complications like self absorption make the evaluation of these measurements non-trivial – especially when using multiple detector modules. This is further complicated when studying low concentrations of elements, where accurate background subtraction and elemental sensitivity is essential. [...]
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2020-11-12
12:48
[PUBDB-2020-04409] Bachelor Thesis
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The effect of stoichiometric variations on performance in CIGS solar cells measured using X-ray microscopy
1-66 () = Bachelorarbeit, Universität Hamburg, 2020
Scanning X-ray microscopy measurements are an indespensible tool of solar cell research to-day, and the compatibility with complementary measurement modes is a particular strength. This Bachelor’s thesis investigates a series of thin-film solar cells with a Cu(In,Ga)Se2(CIGS) absorber layer that differ in their overall ratio of gallium to indium, resulting in a varyingbandgap. [...]
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2020-10-22
14:28
OpenAccess [PUBDB-2020-03978] Bachelor Thesis
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Precision metrology measurements for the CMS phase-2 Tracker upgrade
57 pp. () [10.3204/PUBDB-2020-03978] = Bachelorarbeit, University of Hamburg, 2020  GO
The LHC, along with all of its experiments, is going through an upgrade. The currentLHC, designed for an integrated luminosity of 300 fb$^{-1}$ , will be upgraded to the HighLuminosity LHC (HL-LHC), providing an increased collision rate and will deliver morethan 3000 fb$^{-1}$ luminosity [...]
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2020-10-22
14:20
OpenAccess [PUBDB-2020-03976] Bachelor Thesis
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Application of machine learning in the kinematic reconstruction of $t\bar{t}$ events
59 pp. () [10.3204/PUBDB-2020-03976] = Bachelorarbeit, University of Hamburg, 2020  GO
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2020-10-19
11:24
OpenAccess [PUBDB-2020-03908] Bachelor Thesis
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Development of the temperature-controlled sample environment for Double Pulse Photon Correlation Spectroscopy
37 pp. () [10.3204/PUBDB-2020-03908] = Bachelorarbeit, University of Hamburg, 2018  GO
A temperature-controlled sample environment was developed and verified for a Double Pulse Photon Correlation Spectroscopy (DPPCS) setup. Various polystyrene and ther-moresponsive Poly(N-Isopropyl Acrylamide) (pNipam) samples were characterized in Dy-namic Light Scattering (DLS) measurements [...]
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2020-10-19
09:30
OpenAccess [PUBDB-2020-03904] Bachelor Thesis
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Influence of TMAO on the Dynamics and Gelation of PNIPAm colloids
53 pp. () [10.3204/PUBDB-2020-03904] = Bachelorarbeit, University of Hamburg, 2020  GO
This thesis studies the dynamics of a colloidal suspension, consisting of concentrated nan-oparticles with a silica core and a polymer shell of poly(N-isopropylacrylamide) (PNIPAm)suspended in water. The thermosresponsive polymer PNIPAm is known for its volume phasetransition at a lower critical solution temperature (LCST) of about 32−33◦C [...]
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2020-08-06
14:36
OpenAccess [PUBDB-2020-02956] Bachelor Thesis
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Setup and characterisation of an autocorrelator for UV laser pulses
36 pp. () [10.3204/PUBDB-2020-02956] = Bachelorarbeit, university of hamburg, 2019  GO
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2019-12-31
12:41
[PUBDB-2019-05688] Bachelor Thesis
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Studien zur Entwicklung eines GridPix-basiertenRöntgenpolarimeters
69 pp. () = Bachelorarbeit, University of Bonn, 2019
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2019-12-30
14:35
[PUBDB-2019-05682] Bachelor Thesis

Synthesis and characterization of $Li_{(1+x)}Na_{(5-x)}Mo_{9}O_{30}$
1-46 () = Bachelorarbeit, Ludwig-Maximilians-Univ-München, 2019

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