Search Results - "Hufnagel, Alexander G"

Solvatochromic covalent organic frameworks by Ascherl, Laura, Evans, Emrys W., Hennemann, Matthias, Di Nuzzo, Daniele, Hufnagel, Alexander G., Beetz, Michael, Friend, Richard H., Clark, Timothy, Bein, Thomas, Auras, Florian

“…Covalent organic frameworks (COFs) are an emerging class of highly tuneable crystalline, porous materials. Here we report the first COFs that change their…”
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Interpretation of photocurrent transients at semiconductor electrodes: Effects of band-edge unpinning by Peter, Laurence M., Walker, Alison B., Bein, Thomas, Hufnagel, Alexander G., Kondofersky, Ilina

“…The transient photocurrent response of semiconductor electrodes to chopped illumination often shows spikes and overshoots that are usually interpreted as…”
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Understanding the Role of Cesium and Rubidium Additives in Perovskite Solar Cells: Trap States, Charge Transport, and Recombination by Hu, Yinghong, Hutter, Eline M., Rieder, Philipp, Grill, Irene, Hanisch, Jonas, Aygüler, Meltem F., Hufnagel, Alexander G., Handloser, Matthias, Bein, Thomas, Hartschuh, Achim, Tvingstedt, Kristofer, Dyakonov, Vladimir, Baumann, Andreas, Savenije, Tom J., Petrus, Michiel L., Docampo, Pablo

“…Adding cesium (Cs) and rubidium (Rb) cations to FA0.83MA0.17Pb(I0.83Br0.17)3 hybrid lead halide perovskites results in a remarkable improvement in solar cell…”
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Efficient OER Catalyst with Low Ir Volume Density Obtained by Homogeneous Deposition of Iridium Oxide Nanoparticles on Macroporous Antimony‐Doped Tin Oxide Support by Böhm, Daniel, Beetz, Michael, Schuster, Maximilian, Peters, Kristina, Hufnagel, Alexander G., Döblinger, Markus, Böller, Bernhard, Bein, Thomas, Fattakhova‐Rohlfing, Dina

“…A multistep synthesis procedure for the homogeneous coating of a complex porous conductive oxide with small Ir nanoparticles is introduced to obtain a highly…”
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Zinc Ferrite Photoanode Nanomorphologies with Favorable Kinetics for Water-Splitting by Hufnagel, Alexander G., Peters, Kristina, Müller, Alexander, Scheu, Christina, Fattakhova-Rohlfing, Dina, Bein, Thomas

“…The n‐type semiconducting spinel zinc ferrite (ZnFe2O4) is used as a photoabsorber material for light‐driven water‐splitting. It is prepared for the first time…”
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Why Tin‐Doping Enhances the Efficiency of Hematite Photoanodes for Water Splitting—The Full Picture by Hufnagel, Alexander G., Hajiyani, Hamidreza, Zhang, Siyuan, Li, Tong, Kasian, Olga, Gault, Baptiste, Breitbach, Benjamin, Bein, Thomas, Fattakhova‐Rohlfing, Dina, Scheu, Christina, Pentcheva, Rossitza

“…The beneficial effects of Sn(IV) as a dopant in ultrathin hematite (α‐Fe2O3) photoanodes for water oxidation are examined. Different Sn concentration profiles…”
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Influence of Fermi Level Alignment with Tin Oxide on the Hysteresis of Perovskite Solar Cells by Aygüler, Meltem F, Hufnagel, Alexander G, Rieder, Philipp, Wussler, Michael, Jaegermann, Wolfram, Bein, Thomas, Dyakonov, Vladimir, Petrus, Michiel L, Baumann, Andreas, Docampo, Pablo

“…We tune the Fermi level alignment between the SnO x electron transport layer (ETL) and Cs0.05(FA0.83MA0.17)0.95Pb­(I0.83Br0.17)3 and highlight that this…”
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Oriented Films of Conjugated 2D Covalent Organic Frameworks as Photocathodes for Water Splitting by Sick, Torben, Hufnagel, Alexander G, Kampmann, Jonathan, Kondofersky, Ilina, Calik, Mona, Rotter, Julian M, Evans, Austin, Döblinger, Markus, Herbert, Simon, Peters, Kristina, Böhm, Daniel, Knochel, Paul, Medina, Dana D, Fattakhova-Rohlfing, Dina, Bein, Thomas

“…Light-driven water electrolysis at a semiconductor surface is a promising way to generate hydrogen from sustainable energy sources, but its efficiency is…”
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Control of Perovskite Crystal Growth by Methylammonium Lead Chloride Templating by Binek, Andreas, Grill, Irene, Huber, Niklas, Peters, Kristina, Hufnagel, Alexander G., Handloser, Matthias, Docampo, Pablo, Hartschuh, Achim, Bein, Thomas

“…State‐of‐the‐art solar cells based on methylammonium lead iodide (MAPbI3) now reach efficiencies over 20 %. This fast improvement was possible with intensive…”
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Electron‐Blocking and Oxygen Evolution Catalyst Layers by Plasma‐Enhanced Atomic Layer Deposition of Nickel Oxide by Hufnagel, Alexander G., Henß, Ann‐Kathrin, Hoffmann, Ramona, Zeman, Otto E. O., Häringer, Sebastian, Fattakhova‐Rohlfing, Dina, Bein, Thomas

“…A plasma‐enhanced atomic layer deposition (ALD) process is presented, capable of producing thin conformal films of nickel(II) oxide (NiO) on various…”
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Cover Picture: Control of Perovskite Crystal Growth by Methylammonium Lead Chloride Templating (Chem. Asian J. 8/2016) by Binek, Andreas, Grill, Irene, Huber, Niklas, Peters, Kristina, Hufnagel, Alexander G., Handloser, Matthias, Docampo, Pablo, Hartschuh, Achim, Bein, Thomas

“…The combination of a chloride‐based precursor and the slow evaporation of the solvent in the formation of MAPbI3 generate uniform, orientated and big crystals…”
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Nickel Oxide: Electron‐Blocking and Oxygen Evolution Catalyst Layers by Plasma‐Enhanced Atomic Layer Deposition of Nickel Oxide (Adv. Mater. Interfaces 16/2018) by Hufnagel, Alexander G., Henß, Ann‐Kathrin, Hoffmann, Ramona, Zeman, Otto E. O., Häringer, Sebastian, Fattakhova‐Rohlfing, Dina, Bein, Thomas

“…In article number 1701531, Alexander G. Hufnagel, Thomas Bein and co‐workers present the development and applications of a plasma‐enhanced atomic layer…”
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Efficient OER Catalysts: Efficient OER Catalyst with Low Ir Volume Density Obtained by Homogeneous Deposition of Iridium Oxide Nanoparticles on Macroporous Antimony‐Doped Tin Oxide Support (Adv. Funct. Mater. 1/2020) by Böhm, Daniel, Beetz, Michael, Schuster, Maximilian, Peters, Kristina, Hufnagel, Alexander G., Döblinger, Markus, Böller, Bernhard, Bein, Thomas, Fattakhova‐Rohlfing, Dina

“…In article number 1906670, Daniel Böhm, Dina Fattakhova‐Rohlfing, and co‐workers present a novel scalable approach for the design of a dimensionally stable…”
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Water Splitting: Why Tin‐Doping Enhances the Efficiency of Hematite Photoanodes for Water Splitting—The Full Picture (Adv. Funct. Mater. 52/2018) by Hufnagel, Alexander G., Hajiyani, Hamidreza, Zhang, Siyuan, Li, Tong, Kasian, Olga, Gault, Baptiste, Breitbach, Benjamin, Bein, Thomas, Fattakhova‐Rohlfing, Dina, Scheu, Christina, Pentcheva, Rossitza

“…Photoelectrical water oxidation by photoanodes comprised of ultrathin hematite films is investigated by Christina Scheu, Rossitza Pentcheva, and co‐workers in…”
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Photoelectrochemistry: Zinc Ferrite Photoanode Nanomorphologies with Favorable Kinetics for Water-Splitting (Adv. Funct. Mater. 25/2016) by Hufnagel, Alexander G., Peters, Kristina, Müller, Alexander, Scheu, Christina, Fattakhova-Rohlfing, Dina, Bein, Thomas

“…Photoelectrolysis of water is a promising technology to generate hydrogen as a renewable fuel. In the article on page 4435, T. Bein and co‐workers examine the…”
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Perovskite Solar Cells: Understanding the Role of Cesium and Rubidium Additives in Perovskite Solar Cells: Trap States, Charge Transport, and Recombination (Adv. Energy Mater. 16/2018) by Hu, Yinghong, Hutter, Eline M., Rieder, Philipp, Grill, Irene, Hanisch, Jonas, Aygüler, Meltem F., Hufnagel, Alexander G., Handloser, Matthias, Bein, Thomas, Hartschuh, Achim, Tvingstedt, Kristofer, Dyakonov, Vladimir, Baumann, Andreas, Savenije, Tom J., Petrus, Michiel L., Docampo, Pablo

“…In article number 1703057, Andreas Baumann, Tom J. Savenije, Michiel L. Petrus, Pablo Docampo and co‐workers demonstrate that the incorporation of Cs+ cations…”
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