Search Results - "Kafizas, Andreas"

Determining the role of oxygen vacancies in the photoelectrocatalytic performance of WO3 for water oxidation by Corby, Sacha, Francàs, Laia, Kafizas, Andreas, Durrant, James R

“…Oxygen vacancies are common to most metal oxides, whether intentionally incorporated or otherwise, and the study of these defects is of increasing interest for…”
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Multi‐Scale Investigations of δ‐Ni0.25V2O5·nH2O Cathode Materials in Aqueous Zinc‐Ion Batteries by Li, Jianwei, McColl, Kit, Lu, Xuekun, Sathasivam, Sanjayan, Dong, Haobo, Kang, Liqun, Li, Zhuangnan, Zhao, Siyu, Kafizas, Andreas G., Wang, Ryan, Brett, Dan J. L., Shearing, Paul R., Corà, Furio, He, Guanjie, Carmalt, Claire J., Parkin, Ivan P.

“…Cost‐effective and environment‐friendly aqueous zinc‐ion batteries (AZIBs) exhibit tremendous potential for application in grid‐scale energy storage systems…”
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Photoinduced Absorption Spectroscopy of CoPi on BiVO4: The Function of CoPi during Water Oxidation by Ma, Yimeng, Kafizas, Andreas, Pendlebury, Stephanie R., Le Formal, Florian, Durrant, James R.

“…This paper employs photoinduced absorption and electrochemical techniques to analyze the charge carrier dynamics that drive photoelectrochemical water…”
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Water Oxidation and Electron Extraction Kinetics in Nanostructured Tungsten Trioxide Photoanodes by Corby, Sacha, Francàs, Laia, Selim, Shababa, Sachs, Michael, Blackman, Chris, Kafizas, Andreas, Durrant, James R

“…A thorough understanding of the kinetic competition between desired water oxidation/electron extraction processes and any detrimental surface recombination is…”
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Linking in situ charge accumulation to electronic structure in doped SrTiO3 reveals design principles for hydrogen-evolving photocatalysts by Moss, Benjamin, Wang, Qian, Butler, Keith T., Grau-Crespo, Ricardo, Selim, Shababa, Regoutz, Anna, Hisatomi, Takashi, Godin, Robert, Payne, David J., Kafizas, Andreas, Domen, Kazunari, Steier, Ludmilla, Durrant, James R.

“…Recently, high solar-to-hydrogen efficiencies were demonstrated using La and Rh co-doped SrTiO 3 (La,Rh:SrTiO 3 ) incorporated into a low-cost and scalable…”
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Evaluation of Surface State Mediated Charge Recombination in Anatase and Rutile TiO2 by Sachs, Michael, Pastor, Ernest, Kafizas, Andreas, Durrant, James R

“…In nanostructured thin films, photogenerated charge carriers can access the surface more easily than in dense films and thus react more readily. However, the…”
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Multihole water oxidation catalysis on haematite photoanodes revealed by operando spectroelectrochemistry and DFT by Mesa, Camilo A., Francàs, Laia, Yang, Ke R., Garrido-Barros, Pablo, Pastor, Ernest, Ma, Yimeng, Kafizas, Andreas, Rosser, Timothy E., Mayer, Matthew T., Reisner, Erwin, Grätzel, Michael, Batista, Victor S., Durrant, James R.

“…Water oxidation is the key kinetic bottleneck of photoelectrochemical devices for fuel synthesis. Despite advances in the identification of intermediates,…”
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Photobactericidal activity activated by thiolated gold nanoclusters at low flux levels of white light by Hwang, Gi Byoung, Huang, He, Wu, Gaowei, Shin, Juhun, Kafizas, Andreas, Karu, Kersti, Toit, Hendrik Du, Alotaibi, Abdullah M., Mohammad-Hadi, Layla, Allan, Elaine, MacRobert, Alexander J., Gavriilidis, Asterios, Parkin, Ivan P.

“…The emergence of antibiotic resistant bacteria is a major threat to the practice of modern medicine. Photobactericidal agents have obtained significant…”
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Impact of Oxygen Vacancy Occupancy on Charge Carrier Dynamics in BiVO4 Photoanodes by Selim, Shababa, Pastor, Ernest, García-Tecedor, Miguel, Morris, Madeleine R, Francàs, Laia, Sachs, Michael, Moss, Benjamin, Corby, Sacha, Mesa, Camilo A, Gimenez, Sixto, Kafizas, Andreas, Bakulin, Artem A, Durrant, James R

“…Oxygen vacancies are ubiquitous in metal oxides and critical to performance, yet the impact of these states upon charge carrier dynamics important for…”
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Effect of Band Bending in Photoactive MOF-Based Heterojunctions by Schukraft, Giulia E. M, Moss, Benjamin, Kafizas, Andreas G, Petit, Camille

“…Semiconductor/metal–organic framework (MOF) heterojunctions have demonstrated promising performance for the photoconversion of CO2 into value-added chemicals…”
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Ultrafast Charge Carrier Recombination and Trapping in Hematite Photoanodes under Applied Bias by Pendlebury, Stephanie R, Wang, Xiuli, Le Formal, Florian, Cornuz, Maurin, Kafizas, Andreas, Tilley, S. David, Grätzel, Michael, Durrant, James R

“…Transient absorption spectroscopy on subpicosecond to second time scales is used to investigate photogenerated charge carrier recombination in Si-doped…”
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Kinetics of Photoelectrochemical Oxidation of Methanol on Hematite Photoanodes by Mesa, Camilo A, Kafizas, Andreas, Francàs, Laia, Pendlebury, Stephanie R, Pastor, Ernest, Ma, Yimeng, Le Formal, Florian, Mayer, Matthew T, Grätzel, Michael, Durrant, James R

“…The kinetics of photoelectrochemical (PEC) oxidation of methanol, as a model organic substrate, on α-Fe2O3 photoanodes are studied using photoinduced…”
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Chemical Vapor Deposition of Photocatalytically Active Pure Brookite TiO2 Thin Films by Alotaibi, Abdullah M, Sathasivam, Sanjayan, Williamson, Benjamin A. D, Kafizas, Andreas, Sotelo-Vazquez, Carlos, Taylor, Alaric, Scanlon, David O, Parkin, Ivan P

“…Brookite is the least investigated phase of TiO2 due to the synthetic difficulty of obtaining the pure phase. Here, we present the first ever chemical vapor…”
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Effect of oxygen deficiency on the excited state kinetics of WO3 and implications for photocatalysis by Sachs, Michael, Ji-Sang, Park, Pastor, Ernest, Kafizas, Andreas, Wilson, Anna A, Francàs, Laia, Gul, Sheraz, Ling, Min, Blackman, Chris, Yano, Junko, Walsh, Aron, Durrant, James R

“…Oxygen vacancies are widely used to tune the light absorption of semiconducting metal oxides, but a photophysical framework describing the impact of such point…”
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Transient Absorption Spectroscopy of Anatase and Rutile: The Impact of Morphology and Phase on Photocatalytic Activity by Wang, Xiuli, Kafizas, Andreas, Li, Xiaoe, Moniz, Savio J. A, Reardon, Philip J. T, Tang, Junwang, Parkin, Ivan P, Durrant, James R

“…We employed transient absorption spectroscopy (TAS) to investigate the kinetic dependences of photocatalysis in anatase and rutile TiO2 films of varying…”
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WO3/BiVO4: impact of charge separation at the timescale of water oxidation by Shababa Selim, Francàs, Laia, García-Tecedor, Miguel, Corby, Sacha, Blackman, Chris, Gimenez, Sixto, Durrant, James R, Kafizas, Andreas

“…The four hole oxidation of water has long been considered the kinetic bottleneck for overall solar-driven water splitting, and thus requires the formation of…”
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Multifunctional P‑Doped TiO2 Films: A New Approach to Self-Cleaning, Transparent Conducting Oxide Materials by Sotelo-Vazquez, Carlos, Noor, Nuruzzaman, Kafizas, Andreas, Quesada-Cabrera, Raul, Scanlon, David O, Taylor, Alaric, Durrant, James R, Parkin, Ivan P

“…Multifunctional P-doped TiO2 thin films were synthesized by atmospheric pressure chemical vapor deposition (APCVD). This is the first example of P-doped TiO2…”
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Charge Separation, Band-Bending, and Recombination in WO3 Photoanodes by Corby, Sacha, Pastor, Ernest, Dong, Yifan, Zheng, Xijia, Francàs, Laia, Sachs, Michael, Selim, Shababa, Kafizas, Andreas, Bakulin, Artem A, Durrant, James R

“…In metal oxide-based photoelectrochemical devices, the spatial separation of photogenerated electrons and holes is typically attributed to band-bending at the…”
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Water Oxidation Kinetics of Accumulated Holes on the Surface of a TiO2 Photoanode: A Rate Law Analysis by Kafizas, Andreas, Ma, Yimeng, Pastor, Ernest, Pendlebury, Stephanie R, Mesa, Camilo, Francàs, Laia, Le Formal, Florian, Noor, Nuruzzaman, Ling, Min, Sotelo-Vazquez, Carlos, Carmalt, Claire J, Parkin, Ivan P, Durrant, James R

“…It has been more than 40 years since Fujishima and Honda demonstrated water splitting using TiO2, yet there is still no clear mechanism by which surface holes…”
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Optimizing the Activity of Nanoneedle Structured WO3 Photoanodes for Solar Water Splitting: Direct Synthesis via Chemical Vapor Deposition by Kafizas, Andreas, Francàs, Laia, Sotelo-Vazquez, Carlos, Ling, Min, Li, Yaomin, Glover, Emily, McCafferty, Liam, Blackman, Chris, Darr, Jawwad, Parkin, Ivan

“…Solar water splitting is a promising solution for the renewable production of hydrogen as an energy vector. To date, complex or patterned photoelectrodes have…”
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