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28 results on '"Lambert, Ethan C."'

1. Surface-Enhanced Raman Scattering Under Liquid Nitrogen (SERSUN)

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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2. Lattice Modes in Raman Spectroscopy Under Liquid Nitrogen

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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3. Raman Spectra of Typical Solvents at Room Temperature and Under Liquid Nitrogen

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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4. Fundamentals of Raman Spectroscopy and Raman Under Nitrogen (RUN)

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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5. RUN Spectroscopy for the C60 Fullerene Molecule

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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6. Polarized Raman Spectroscopy Using RUN and GHRUNS

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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7. Introduction

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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8. Experimental Methods of RUN, SERSUN, and GHRUNS

Author

Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., Hager, J. Stewart, Drake, Gordon W. F., Editor-in-Chief, Babb, James, Series Editor, Bandrauk, Andre D., Series Editor, Bartschat, Klaus, Series Editor, Joachain, Charles J., Series Editor, Keidar, Michael, Series Editor, Lambropoulos, Peter, Series Editor, Leuchs, Gerd, Series Editor, Velikovich, Alexander, Series Editor, Compton, Robert N., Hammer, Nathan I., Lambert, Ethan C., and Hager, J. Stewart

Published
2022
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14. Ruthenium (II) Complexes of CNC Pincers and Bipyridine in the Photocatalytic CO2 Reduction Reaction to CO Using Visible Light: Catalysis, Kinetics, and Computational Insights

Author

Hunt, Leigh Anna, primary, Das, Sanjit, additional, Lamb, Robert W., additional, Nugegoda, Dinesh, additional, Curiac, Christine, additional, Figgins, Matthew T., additional, Lambert, Ethan C., additional, Qu, Fengrui, additional, Hammer, Nathan I., additional, Delcamp, Jared H., additional, Webster, Charles Edwin, additional, and Papish, Elizabeth T., additional

Published
2023
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16. Increasing Photoinduced Interfacial Charge Separation Lifetime through Control of the Twist Angle in the Donor Region of Carbazole-Based Dyes

Author

Curiac, Christine, Lambert, Ethan C., Hunt, Leigh Anna, Roberts, Mallory, Lamore, Ainsley, Peddapuram, Adithya, Cheema, Hammad, Hammer, Nathan I., Delcamp, Jared H., Curiac, Christine, Lambert, Ethan C., Hunt, Leigh Anna, Roberts, Mallory, Lamore, Ainsley, Peddapuram, Adithya, Cheema, Hammad, Hammer, Nathan I., and Delcamp, Jared H.

Abstract

Molecular-based optoelectronic devices and photocatalytic systems often rely on the photogeneration of charge-separated states. Increasing the longevity of charge-separated states allows for access to higher-functioning devices and systems by extending the length of time before subsequent events are required to occur. In dye-sensitized solar cells (DSC), back electron transfer (BET) from a reduced metal oxide to an oxidized dye is an unproductive electron transfer pathway that determines the charge-separated state lifetime. This study seeks to limit BET by lowering the electronic coupling of the donor and acceptor in the charge-separated excited state through the use of sterics. A series of three dyes with a varying number of methyl groups (0-2) on the donor were studied using nanosecond transient absorption spectroscopy (nsTAS) to compare rates of BET. Novel dye CC10 (1 Me), designed with one methyl group in the donor region connected to the acceptor, was found to lower back electron transfer rates by 22x compared to the control dye, CC12 (0 Me), with no methyl groups.

Published
2023
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24. Effects of Proaromaticity on Excited-State Lifetimes and Charge Separation in Near-Infrared Sensitizer Dyes in Solution and on TiO2

Author

Dorris, Austin L., Watson, Jonathon, Mosely, Jacquelyn J., Lambert, Ethan C., Tschumper, Gregory S., Delcamp, Jared H., and Hammer, Nathan I.

Abstract

The influence of proaromaticity on the excited state dynamics of near-infrared (NIR)-absorbing sensitizer dyes is explored using a combination of ultrafast transient absorption spectroscopy (TAS) and computational chemistry. The addition of a proaromatic π-bridge was found to stabilize the excited state and lead to lower excitation energies in solution and longer excited-state lifetimes, contrary to what is expected by the energy gap law. When studied under standard device conditions on TiO2, it was found that the dye structure plays a significant role in determining excited-state dynamics. Computational chemistry results confirm the proaromatic nature of the dyes through both bond length analyses and nucleus-independent chemical shift (NICS) calculations. Through incorporation of excited-state aromaticity, a 10× increase in excited-state lifetime was observed for dyes with a near 0.5 V lower energy excited state.

Published
2023
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