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Observation of the third harmonic sinusoidal voltage response of a small incandescent lightbulb

Creator:

Hutchings, Scott

Abstract:

This thesis looks at the third harmonic voltage response of a small incandescent lightbulb. The third harmonic voltage, or 3 omega (3ω) voltage, arises from applying a 1ω sinusoidal voltage across a resistive material. The 3ω voltage carries with it information about the thermal conductivity of the material. A lock-in-amplifier...

Resource Type:

Presentation and Undergraduate Thesis
High-resolution spectroscopy and Fe abundance analysis of very metal poor red-giant stars

Creator:

Gluck, Daniel J.

Abstract:

Studying the evolution of the Milky Way galaxy helps us understand our place in the Universe. Early evolution of the Galaxy can effectively be studied by observing stars with low metallicity values since they are the oldest stars still visible. Due to the formation of the Galaxy, the oldest stars...

Resource Type:

Undergraduate Thesis
Exploration of charge-transfer exciton formation in organic semiconductors through transient photoconductivity measurements

Creator:

Neunzert, Afina

Abstract:

This project investigated transient photoconductivity in organic donor-acceptor (D-A) systems, where a flourinated anthradithiophene, ADT-TES-F, acts as the donor. Various acceptor molecules were used, with different sidegroups, and different HOMO (highest occupied molecular orbital) and LUMO (lowest unoccupied molecular orbital) energy level offsets relative to the acceptor. Thin film composites...

Resource Type:

Undergraduate Thesis

ScholarsArchive@OSU

Observation of the third harmonic sinusoidal voltage response of a small incandescent lightbulb

High-resolution spectroscopy and Fe abundance analysis of very metal poor red-giant stars

Exploration of charge-transfer exciton formation in organic semiconductors through transient photoconductivity measurements

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