Patrick Michael Boland

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This Article is brought to you for free and open access by the Electrical & Computer Engineering at ODU Digital Commons. It has been accepted for inclusion in Electrical & Computer Engineering Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact digitalcommons@odu.edu. Repository Citation Namkoong,(More)
Thin films of Cu(In,Ga)Se<sub>2</sub> with various copper contents as functions of the copper and gallium contents were deposited by co-evaporation onto thermally oxidized silicon wafer (100). In-situ Real Time Spectroscopic Ellipsometry (RTSE) is used to understand the effect of the Ga/(In+Ga) ratio and the Cu atomic % on the growth and optical properties(More)
An active area of research in the field of photovoltaics that strives to significantly improve energy conversion efficiencies involves the exploration and manipulation of device physical structures. With knowledge gleaned from the fabrication of standard planar organic solar cells, our group has developed a technique for creating nanoscale nested structures(More)
Charge carrier transport within bulk heterojunction organic solar cells has been simulated with the goal of extending the insights gained to analysis of transport between organics and metal oxides. In turn, this information will be applied to the metal oxide/metal electrode interfaces. Recent discoveries have shown that optimizing interfaces between the(More)
In this paper, we present our results on the fabrication of solar cells down to thicknesses of 0.5 &#x03BC;m, and how real time and in situ analysis by spectroscopic ellipsometry (SE) can help in (i) understanding the results of the devices; and (ii) modeling the growth and properties of the CIGS solar cell. These in situ and real time measurements are(More)
Optimizing the efficiency of polymer-based, planar organic solar cells requires nanoscale control of the thicknesses of constituent layer materials composing the device. A thin film optical simulation modeling tool has been used to determine ideal active layer thicknesses for regioregular poly(3-hexylthiophene) and(More)
Alternative deposition methods and materials are of interest for the fabrication of thin film solar cells since they offer potential enhancements for either low cost, high speed or high efficiency but also because they can help in better understanding the underlying physical and chemical processes that could lead to the next generation of solar cells. In(More)
Transparent conducting ZnO:Al (AZO) thin films were deposited by using radio frequency (RF) magnetron sputtering system and were analyzed with regards to their potential application as a window layer for CIGS solar cells. Their properties were measured in-situ and ex-situ by real time spectroscopic ellipsometry (RTSE) and were correlated with ex-situ(More)
GEOMETRY OF SATAKE AND TOROIDAL COMPACTIFICATIONS SEPTEMBER 2010 PATRICK BOLAND, B.A., PROVIDENCE COLLEGE Ph.D., UNIVERSITY OF MASSACHUSETTS AMHERST Directed by: Professor Paul E. Gunnells In [JM02, §14], Ji and MacPherson give new constructions of the Borel–Serre and reductive Borel–Serre compactifications [BS73, Zuc82] of a locally symmetric space Γ\X.(More)
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