Search Results - "Collison, Christopher J"

Non-Kasha Behavior in Quadrupolar Dye Aggregates: The Red-Shifted H‑Aggregate by Zheng, Chenyu, Zhong, Chuwei, Collison, Christopher J, Spano, Frank C

“…Aggregates of quadrupolar DAD-type chromophores are investigated theoretically using the essential states model (ESM) enhanced to include vibronic coupling. On…”
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Confirmation of the Origins of Panchromatic Spectra in Squaraine Thin Films Targeted for Organic Photovoltaic Devices by Hestand, Nicholas J, Zheng, Chenyu, Penmetcha, Anirudh Raju, Cona, Brandon, Cody, Jeremy A, Spano, Frank C, Collison, Christopher J

“…Squaraines offer significant potential for organic photovoltaics because of their broad absorbance and high extinction coefficients as well as their expected…”
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Impact of Alkyl Chain Length on Small Molecule Crystallization and Nanomorphology in Squaraine-Based Solution Processed Solar Cells by Zheng, Chenyu, Jalan, Ishita, Cost, Patrick, Oliver, Kyle, Gupta, Anju, Misture, Scott, Cody, Jeremy A, Collison, Christopher J

“…In this work, we have investigated a series of aniline-based squaraines, with varying solubilizing alkyl chains, as donor materials in bulk heterojunction…”
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The effect of controllable thin film crystal growth on the aggregation of a novel high panchromaticity squaraine viable for organic solar cells by Spencer, Susan D., Bougher, Cortney, Heaphy, Patrick J., Murcia, Victor M., Gallivan, Cameron P., Monfette, Amber, Andersen, John D., Cody, Jeremy A., Conrad, Brad R., Collison, Christopher J.

“…A description of the synthesis procedure is provided for a new squaraine molecule, DiPSQ(OH)2. This molecule is an interesting target molecule for organic…”
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Conformational Effects on the Photophysics of Conjugated Polymers:  A Two Species Model for MEH−PPV Spectroscopy and Dynamics by Collison, Christopher J, Rothberg, Lewis J, Treemaneekarn, Varaporn, Li, Yi

“…We report transient and steady state photoluminescence results along with absorption and NMR data to support the existence of two distinct morphological…”
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Davydov Splitting in Squaraine Dimers by Zhong, Chuwei, Bialas, David, Collison, Christopher J, Spano, Frank C

“…The essential states model (ESM) for donor–acceptor–donor (D–A–D) chromophores is used to explore absorption and photoluminescence (PL) in molecular dimers…”
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Aggregation Quenching of Luminescence in Electroluminescent Conjugated Polymers by Jakubiak, Rachel, Collison, Christopher J, Wan, Wai Chou, Rothberg, Lewis J, Hsieh, Bing R

“…We report measurements of photoluminescence from films of a soluble phenylenevinylene polymer that has prospective importance as the emissive material in…”
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Spectroscopic Evidence for Interaction of Poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] Conformers and Single-Walled Carbon Nanotubes in Solvent Dispersions by Collison, Christopher J, Pellizzeri, Steven, Ambrosio, Filip

“…Organic photovoltaic devices promise low-cost, flexible options for future renewable energy that will reduce reliance on oil. Single-wall carbon nanotubes…”
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Correction to “Non-Kasha Behavior in Quadrupolar Dye Aggregates: The Red-Shifted H‑Aggregate” by Zheng, Chenyu, Zhong, Chuwei, Collison, Christopher J, Spano, Frank C

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Measurement and Theoretical Interpretation of Exciton Diffusion as a Function of Intermolecular Separation for Squaraines Targeted for Bulk Heterojunction Solar Cells by Zheng, Chenyu, Mark, Michael F, Wiegand, Tyler, Diaz, Steven A, Cody, Jeremy, Spano, Frank C, McCamant, David W, Collison, Christopher J

“…The efficiency of bulk heterojunction (BHJ) organic photovoltaic (OPV) devices depends significantly upon absorption of photons and the migration of the…”
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Contribution of Aggregate States and Energetic Disorder to a Squaraine System Targeted for Organic Photovoltaic Devices by Zheng, Chenyu, Penmetcha, Anirudh Raju, Cona, Brandon, Spencer, Susan D, Zhu, Bi, Heaphy, Patrick, Cody, Jeremy A, Collison, Christopher J

“…Squaraine dyes have significant potential for use in organic photovoltaic devices because their chemical and packing structure tunability leads to a broad…”
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An experimental and computational study of donor–linker–acceptor block copolymers for organic photovoltaics by Hu, Zhiqi, Jakowski, Jacek, Zheng, Chenyu, Collison, Christopher J., Strzalka, Joseph, Sumpter, Bobby G., Verduzco, Rafael

“…ABSTRACT Block copolymers with donor and acceptor conjugated polymer blocks provide an approach to dictating the donor–accepter interfacial structure and…”
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Nanoscale characterization of squaraine-fullerene-based photovoltaic active layers by atomic force microscopy mechanical and electrical property mapping by Coffey, Tonya, Seredinski, Andrew, Poler, Jake N., Patteson, Crystal, Watts, William H., Baptiste, Kenny, Zheng, Chenyu, Cody, Jeremy, Collison, Christopher J.

“…The efficiency of organic solar cells can be increased by careful control of the nanoscale morphology of a dispersed bulk heterojunction device. Atomic force…”
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Phase separation, crystallinity and monomer-aggregate population control in solution processed small molecule solar cells by Zheng, Chenyu, Bleier, Dylan, Jalan, Ishita, Pristash, Sarah, Penmetcha, Anirudh Raju, Hestand, Nicholas J., Spano, Frank C., Pierce, Michael S., Cody, Jeremy A., Collison, Christopher J.

“…Small conjugated molecules are of great interest as promising alternatives to semiconducting polymers in organic photovoltaics (OPV). In this work, we…”
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Controlling J-aggregate formation for increased short-circuit current and power conversion efficiency with a squaraine donor by Spencer, Susan, Hu, Harry, Li, Qimeng, Ahn, Hyo-Yang, Qaddoura, Maher, Yao, Sheng, Ioannidis, Andronique, Belfield, Kevin, Collison, Christopher J.

“…ABSTRACT A squaraine dye is tested for novel application in a near‐infrared‐active organic photovoltaic cell that is subsequently optimized to obtain a power…”
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A New Model for Quantifying the Extent of Interaction between Soluble Polyphenylene-Vinylenes and Single-Walled Carbon Nanotubes in Solvent Dispersions by Collison, Christopher J, Spencer, Susan, Preske, Amanda, Palumbo, Chad, Helenic, Alysha, Bailey, Rebecca, Pellizzeri, Steven

“…The ability to disperse and, hence, manipulate single-walled carbon nanotubes is critical for their use in organic photovoltaic devices, either as a…”
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Complexation between Rhodamine 101 and Single-Walled Carbon Nanotubes Indicative of Solvent−Nanotube Interaction Strength by Collison, Christopher J, O’Donnell, Marc J, Alexander, Jessica L

“…Single walled carbon nanotubes (SWNT) have excellent mechanical, electrical, and thermal properties but their manipulation is hampered since they do not…”
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Directional Exciton Diffusion, Measured by Subpicosecond Transient Absorption as an Explanation for Squaraine Solar Cell Performance by Wiegand, Tyler J., Sandoval, Juan S., Cody, Jeremy A., McCamant, David W., Collison, Christopher J.

“…Organic photovoltaic devices have improved dramatically, and small molecular systems with simple synthesis such as squaraines are prime candidates for…”
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Optimal morphology, H-aggregation, and ternary blend excited state disruption in equilibrated squaraine-based all small molecule solar-cells by Wiegand, Tyler, Godoy, Joseph, Gupta, Soumya, Cody, Jeremy, Coffey, Tonya, Collison, Christopher J.

“…•Control of OPV thin film morphology and aggregation via second squaraine surfactant.•Despite prediction, no evidence of inherently poor OPV efficiency from…”
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Quantifying Squaraine Phase Separation, Aggregate Populations, and Solar Cell Performance with a Correlated Multimethod Approach by Wiegand, Tyler, Smith, Hudson, Ryczek, Catherine, Cruz, Adriana, Cody, Jeremy, Collison, Christopher J., Burson, Kristen

“…Both the nature of the excited state and the morphology of the active layer combine to greatly influence the efficiency in all-small-molecule organic…”
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