Doktorarbeiten

As the technological needs of today’s global society continue to increase, the pressureto develop more powerful, more efficient and above all more compact electronicdevices increases simultaneously. In 1965 Moore [1] exhibited a correlation betweenthe number of transistors on an integrated circuit and the number of years followingthe invention of the integrated circuit in 1958 — the transistor count seemed to beroughly doubling every year. [...]

In the past decade, oxide-based heterostructures have been studied extensively as potentiallyattractive systems for applications in nanoelectronics. Among them, ferroelectric materials raisedinterest as potential support for those technological applications. [...]

Elektrokeramische Werkstoffe sind aufgrund ihrer vielfältigen Einsatzmöglichkeiten von hohemInteresse für Forschung und Entwicklung. Besonders Titanate mit Perowskitstruktur werdenverstärkt in Form dünner Schichten in modernste elektronische und elektromechanische Bauelementewie Aktoren, Sensoren und Speicher integriert. [...]

The epifluorescence microscope, as we know it today, has come a long way. Startingas a spin-off to the UV microscope at the beginning of the twentieth century, itsdevelopment over the last century has made it a powerful tool, allowing the studyof biological processes on single-molecule level in unprecedented detail ....

Off-axis electron holography is a powerful technique for recording the phase shift ofhigh-energy electron waves that pass through a thin specimen in the transmissionelectron microscope. Information about the electromagnetic field in and around thespecimen is encoded in the phase, according to the Aharonov-Bohm equations. [...]

Thin-film silicon is an important material in the fields of photovoltaics. As wellas microcrystalline (μc-Si:H), amorphous (a-Si:H) silicon has been used for a longas an absorber in thin-film solar cells. [...]