Search Results - "Toma, Francesca M."

Understanding the Oxygen Evolution Reaction Mechanism on CoOx using Operando Ambient-Pressure X-ray Photoelectron Spectroscopy by Favaro, Marco, Yang, Jinhui, Nappini, Silvia, Magnano, Elena, Toma, Francesca M, Crumlin, Ethan J, Yano, Junko, Sharp, Ian D

“…Photoelectrochemical water splitting is a promising approach for renewable production of hydrogen from solar energy and requires interfacing advanced…”
Get full text

Electrocatalysis at Organic–Metal Interfaces: Identification of Structure–Reactivity Relationships for CO2 Reduction at Modified Cu Surfaces by Buckley, Aya K, Lee, Michelle, Cheng, Tao, Kazantsev, Roman V, Larson, David M, Goddard III, William A, Toste, F. Dean, Toma, Francesca M

“…The limited selectivity of existing CO2 reduction catalysts and rising levels of CO2 in the atmosphere necessitate the identification of specific…”
Get full text

High Photoluminescence Quantum Yield in Band Gap Tunable Bromide Containing Mixed Halide Perovskites by Sutter-Fella, Carolin M, Li, Yanbo, Amani, Matin, Ager, Joel W, Toma, Francesca M, Yablonovitch, Eli, Sharp, Ian D, Javey, Ali

“…Hybrid organic–inorganic halide perovskite based semiconductor materials are attractive for use in a wide range of optoelectronic devices because they combine…”
Get full text

Indirect Bandgap and Optical Properties of Monoclinic Bismuth Vanadate by Cooper, Jason K, Gul, Sheraz, Toma, Francesca M, Chen, Le, Liu, Yi-Sheng, Guo, Jinghua, Ager, Joel W, Yano, Junko, Sharp, Ian D

“…Monoclinic scheelite bismuth vanadate (m-BiVO4) is a promising semiconductor photoanode for photoelectrochemical (PEC) water splitting. Despite considerable…”
Get full text

Mechanistic insights into chemical and photochemical transformations of bismuth vanadate photoanodes by Toma, Francesca M., Cooper, Jason K., Kunzelmann, Viktoria, McDowell, Matthew T., Yu, Jie, Larson, David M., Borys, Nicholas J., Abelyan, Christine, Beeman, Jeffrey W., Yu, Kin Man, Yang, Jinhui, Chen, Le, Shaner, Matthew R., Spurgeon, Joshua, Houle, Frances A., Persson, Kristin A., Sharp, Ian D.

“…Artificial photosynthesis relies on the availability of semiconductors that are chemically stable and can efficiently capture solar energy. Although metal…”
Get full text

Defective TiO2 with high photoconductive gain for efficient and stable planar heterojunction perovskite solar cells by Li, Yanbo, Cooper, Jason K., Liu, Wenjun, Sutter-Fella, Carolin M., Amani, Matin, Beeman, Jeffrey W., Javey, Ali, Ager, Joel W., Liu, Yi, Toma, Francesca M., Sharp, Ian D.

“…Formation of planar heterojunction perovskite solar cells exhibiting both high efficiency and stability under continuous operation remains a challenge. Here,…”
Get full text

Effects of Defects on Band Structure and Excitons in WS2 Revealed by Nanoscale Photoemission Spectroscopy by Kastl, Christoph, Koch, Roland J, Chen, Christopher T, Eichhorn, Johanna, Ulstrup, Søren, Bostwick, Aaron, Jozwiak, Chris, Kuykendall, Tevye R, Borys, Nicholas J, Toma, Francesca M, Aloni, Shaul, Weber-Bargioni, Alexander, Rotenberg, Eli, Schwartzberg, Adam M

“…Two-dimensional materials with engineered composition and structure will provide designer materials beyond conventional semiconductors. However, the potentials…”
Get full text

Nanoscale imaging of charge carrier transport in water splitting photoanodes by Eichhorn, Johanna, Kastl, Christoph, Cooper, Jason K., Ziegler, Dominik, Schwartzberg, Adam M., Sharp, Ian D., Toma, Francesca M.

“…The performance of energy materials hinges on the presence of structural defects and heterogeneity over different length scales. Here we map the correlation…”
Get full text

Integrated halide perovskite photoelectrochemical cells with solar-driven water-splitting efficiency of 20.8 by Fehr, Austin M. K., Agrawal, Ayush, Mandani, Faiz, Conrad, Christian L., Jiang, Qi, Park, So Yeon, Alley, Olivia, Li, Bor, Sidhik, Siraj, Metcalf, Isaac, Botello, Christopher, Young, James L., Even, Jacky, Blancon, Jean Christophe, Deutsch, Todd G., Zhu, Kai, Albrecht, Steve, Toma, Francesca M., Wong, Michael, Mohite, Aditya D.

“…Achieving high solar-to-hydrogen (STH) efficiency concomitant with long-term durability using low-cost, scalable photo-absorbers is a long-standing challenge…”
Get full text

Oxynitrides enabled photoelectrochemical water splitting with over 3,000 hrs stable operation in practical two-electrode configuration by Xiao, Yixin, Kong, Xianghua, Vanka, Srinivas, Dong, Wan Jae, Zeng, Guosong, Ye, Zhengwei, Sun, Kai, Navid, Ishtiaque Ahmed, Zhou, Baowen, Toma, Francesca M., Guo, Hong, Mi, Zetian

“…Solar photoelectrochemical reactions have been considered one of the most promising paths for sustainable energy production. To date, however, there has been…”
Get full text

Tunable electrical conductivity in oriented thin films of tetrathiafulvalene-based covalent organic framework by Cai, Song-Liang, Zhang, Yue-Biao, Pun, Andrew B., He, Bo, Yang, Jinhui, Toma, Francesca M., Sharp, Ian D., Yaghi, Omar M., Fan, Jun, Zheng, Sheng-Run, Zhang, Wei-Guang, Liu, Yi

“…Despite the high charge-carrier mobility in covalent organic frameworks (COFs), the low intrinsic conductivity and poor solution processability still impose a…”
Get full text

Fabrication of Planar Heterojunction Perovskite Solar Cells by Controlled Low-Pressure Vapor Annealing by Li, Yanbo, Cooper, Jason K, Buonsanti, Raffaella, Giannini, Cinzia, Liu, Yi, Toma, Francesca M, Sharp, Ian D

“…A new method for achieving high efficiency planar CH3NH3I3–x Cl x perovskite photovoltaics, based on a low pressure, reduced temperature vapor annealing is…”
Get full text

Electronic Structure and Performance Bottlenecks of CuFeO2 Photocathodes by Jiang, Chang-Ming, Reyes-Lillo, Sebastian E, Liang, Yufeng, Liu, Yi-Sheng, Liu, Guiji, Toma, Francesca M, Prendergast, David, Sharp, Ian D, Cooper, Jason K

“…The path to realizing low-cost, stable, and earth-abundant photoelectrodes can be enabled through a detailed understanding of the optoelectronic properties of…”
Get full text

Efficient water oxidation at carbon nanotube–polyoxometalate electrocatalytic interfaces by Toma, Francesca M., Sartorel, Andrea, Iurlo, Matteo, Carraro, Mauro, Parisse, Pietro, Maccato, Chiara, Rapino, Stefania, Gonzalez, Benito Rodriguez, Amenitsch, Heinz, Da Ros, Tatiana, Casalis, Loredana, Goldoni, Andrea, Marcaccio, Massimo, Scorrano, Gianfranco, Scoles, Giacinto, Paolucci, Francesco, Prato, Maurizio, Bonchio, Marcella

“…Water is the renewable, bulk chemical that nature uses to enable carbohydrate production from carbon dioxide. The dream goal of energy research is to transpose…”
Get full text

p‑Type Transparent Conducting Oxide/n-Type Semiconductor Heterojunctions for Efficient and Stable Solar Water Oxidation by Chen, Le, Yang, Jinhui, Klaus, Shannon, Lee, Lyman J, Woods-Robinson, Rachel, Ma, Jie, Lum, Yanwei, Cooper, Jason K, Toma, Francesca M, Wang, Lin-Wang, Sharp, Ian D, Bell, Alexis T, Ager, Joel W

“…Achieving stable operation of photoanodes used as components of solar water splitting devices is critical to realizing the promise of this renewable energy…”
Get full text

Mo-Doped BiVO4 Photoanodes Synthesized by Reactive Sputtering by Chen, Le, Toma, Francesca M., Cooper, Jason K., Lyon, Alan, Lin, Yongjing, Sharp, Ian D., Ager, Joel W.

“…We report a scalable and reproducible method for reactive co‐sputtering of Mo‐doped BiVO4 thin films with broad compositional control. Optimal photoanode…”
Get full text

Bismuth Vanadate as a Platform for Accelerating Discovery and Development of Complex Transition-Metal Oxide Photoanodes by Sharp, Ian D, Cooper, Jason K, Toma, Francesca M, Buonsanti, R

“…Development of practical systems for photoelectrochemical conversion of solar energy to chemical fuel requires light absorbers that are efficient, durable, and…”
Get full text

Potential-Sensing Electrochemical AFM Shows CoPi as a Hole Collector and Oxygen Evolution Catalyst on BiVO4 Water-Splitting Photoanodes by Nellist, Michael R, Qiu, Jingjing, Laskowski, Forrest A. L, Toma, Francesca M, Boettcher, Shannon W

“…Oxide/(oxy)­hydroxide overlayers such as cobalt (oxy)­hydroxide phosphate (CoPi) enhance the performance of BiVO4 water-spitting photoanodes, but the mechanism…”
Get full text

Synthesis and Characterization of a Carbon Nanotube−Dendron Series for Efficient siRNA Delivery by Herrero, M. Antonia, Toma, Francesca M, Al-Jamal, Khuloud T, Kostarelos, Kostas, Bianco, Alberto, Da Ros, Tatiana, Bano, Fouzia, Casalis, Loredana, Scoles, Giacinto, Prato, Maurizio

“…A new series of dendron-functionalized multiwalled carbon nanotube (MWNT) derivatives, characterized by the presence of numerous positively charged tetraalkyl…”
Get full text

Band Tailing and Deep Defect States in CH3NH3Pb(I1–x Br x )3 Perovskites As Revealed by Sub-Bandgap Photocurrent by Sutter-Fella, Carolin M, Miller, D. Westley, Ngo, Quynh P, Roe, Ellis T, Toma, Francesca M, Sharp, Ian D, Lonergan, Mark C, Javey, Ali

“…Organometal halide perovskite semiconductors have emerged as promising candidates for optoelectronic applications because of the outstanding charge carrier…”
Get full text