Photoelectrochemistry; Photocatalysis; Solar hydrogen; Waste water treatment; Solid liquid interface; Nanoparticles; Solid state; hydrogen generation; materials characterization
Hu Yelin, Boudoire Florent, Mayer Matthew T., Yoon Songhak, Graetzel Michael, Braun Artur (2021), Function and Electronic Structure of the SnO2 Buffer Layer between the alpha-Fe2O3 Water Oxidation Photoelectrode and the Transparent Conducting Oxide Current Collector, in JOURNAL OF PHYSICAL CHEMISTRY C
, 125(17, SI), 9158-9168.
Paradzah Alexander T., Maabong-Tau Kelebogile, Diale Mmantsae, Kruger Tjaart P. J. (2020), Photoelectrochemical performance and ultrafast dynamics of photogenerated electrons and holes in highly titanium-doped hematite, in PHYSICAL CHEMISTRY CHEMICAL PHYSICS
, 22(46), 27450-27457.
Abdelnasser Shady, Park Geunsu, Han Hyunwoo, Toth Rita, Yoon Hyeonseok (2019), Enhanced photocatalytic performance of poly(3,4-ethylenedioxythiophene)-coated TiO2 nanotube electrodes, in SYNTHETIC METALS
, 251, 120-126.
Maabong Kelebogile, Machatine Augusto G. J., Mwankemwa Benard S., Braun Artur, Bora Debajeet K., Toth Rita, Diale Mmantsae (2018), Nanostructured hematite thin films for photoelectrochemical water splitting, in PHYSICA B-CONDENSED MATTER
, 535, 67-71.
Schrantz Krisztina, Wyss Pradeep P., Ihssen Julian, Toth Rita, Bora Debajeet K., Vitol Elina A., Rozhkova Elena A., Pieles Uwe, Thony-Meyer Linda, Braun Artur (2017), Hematite photoanode co-functionalized with self-assembling melanin and C-phycocyanin for solar water splitting at neutral pH, in CATALYSIS TODAY
, 284, 44-51.
Bora Debajeet K., Mueller Ulrich, Constable Edwin C., Braun Artur (2017), Highly Electrochemically Stable Morphology of Mesoscale Co3O4 Flowerlike Oriented Aggregate (FLOA) for ElectrocatalyticWater Splitting, in JOURNAL OF THE ELECTROCHEMICAL SOCIETY
, 164(7), 526-536.
Wang Jian-Jun, Hu Yelin, Toth Rita, Fortunato Giuseppino, Braun Artur (2016), A facile nonpolar organic solution process of a nanostructured hematite photoanode with high efficiency and stability for water splitting, in JOURNAL OF MATERIALS CHEMISTRY A
, 4(8), 2821-2825.
Toth Rita, Walliser Roche M., Murray Niamh S., Bora Debajeet K., Braun Artur, Fortunato Guiseppino, Housecroft Catherine E., Constable Edwin C. (2016), A self-assembled, multicomponent water oxidation device, in CHEMICAL COMMUNICATIONS
, 52(14), 2940-2943.
Regonini D., Chen G., Leach C., Clemens F. J. (2016), Comparison of photoelectrochemical properties of TiO2 Nanotubes and sol-gel, in ELECTROCHIMICA ACTA
, 213, 31-36.
Maabong Kelebogile, Hu Yelin, Braun Artur, Machatine Augusto G. J., Diale Mmantsae (2016), Influence of anodization time on the surface modifications on alpha-Fe2O3 photoanode upon anodization, in JOURNAL OF MATERIALS RESEARCH
, 31(11), 1580-1587.
Hu Yelin, Boudoire Florent, Hermann-Geppert Iris, Bogdanoff Peter, Tsekouras George, Mun Bongjin Simon, Fortunato Giuseppino, Graetzel Michael, Braun Artur (2016), Molecular Origin and Electrochemical Influence of Capacitive Surface States on Iron Oxide Photoanodes, in JOURNAL OF PHYSICAL CHEMISTRY C
, 120(6), 3250-3258.
Maabong Kelebogile, Machatine Augusto G., Hu Yelin, Braun Artur, Nambala Fred J., Diale Mmantsae (2016), Morphology, structural and optical properties of iron oxide thin film photoanodes in photoelectrochemical cell: Effect of electrochemical oxidation, in PHYSICA B-CONDENSED MATTER
, 480, 91-94.
Regonini D., Groff A., Soraru G. D., Clemens F. J. (2016), Suppressing Deep Traps in Self-Organized TiO2 Nanotubes by Nb Doping and Optimized Water Content, in JOURNAL OF THE ELECTROCHEMICAL SOCIETY
, 163(3), 1243-1251.
Braun Artur, Hu Yelin, Boudoire Florent, Bora Debajeet K., Sarma D. D., Graetzel Michael, Eggleston Carrick M. (2016), The electronic, chemical and electrocatalytic processes and intermediates on iron oxide surfaces during photoelectrochemical water splitting, in CATALYSIS TODAY
, 260, 72-81.
Bora Debajeet K. (2016), The photocathodic behavior of hierarchical ZnO/hematite hetero nanoarchitectures, in JOURNAL OF MATERIALS RESEARCH
, 31(11), 1554-1564.
Regonini D., Clemens F. J. (2015), Anodized TiO2 Nanotubes: Effect of anodizing time on film length, morphology and photoelectrochemical properties, in MATERIALS LETTERS
, 142, 97-101.
Braun Artur, Boudoire Florent, Bora Debajeet K., Faccio Greta, Hu Yelin, Kroll Alexandra, Mun Bongjin S., Wilson Samuel T. (2015), Biological Components and Bioelectronic Interfaces of Water Splitting Photoelectrodes for Solar Hydrogen Production, in CHEMISTRY-A EUROPEAN JOURNAL
, 21(11), 4188-4199.
Faccio Greta, Gajda-Schrantz Krisztina, Ihssen Julian, Boudoire Florent, Hu Yelin, Mun Bongjin Simon, Bora Debajeet K., Thony-Meyer Linda, Braun Artur (2015), Charge transfer between photosynthetic proteins and hematite in bio-hybrid photoelectrodes for solar water splitting cells, in NANO CONVERGENCE
, 2, 9.
Bora Debajeet K. (2015), Fabrication of silicon doped hematite photoelectrode with enhanced photocurrent density via solution processing of an in-situ TEOS modified precursor, in MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
, 31, 728-738.
Regonini D., Groff A., Soraru G. D., Clemens F. J. (2015), Photoelectrochemical study of anodized TiO2 Nanotubes prepared using low and high H2O contents, in ELECTROCHIMICA ACTA
, 186, 101-111.
D. Regonini1 A. K. Alves2 F. A. Berutti2 and F. Clemens1 (2014), Effect of Aging Time and Film Thickness on the Photoelectrochemical Properties of TiO2 Sol-Gel Photoanodes, in International Journal of Photoenergy
, 2104, 472539.
Ihssen Julian, Braun Artur, Faccio Greta, Gajda-Schrantz Krisztina, Thoeny-Meyer Linda (2014), Light Harvesting Proteins for Solar Fuel Generation in Bioengineered Photoelectrochemical Cells, in CURRENT PROTEIN & PEPTIDE SCIENCE
, 15(4), 374-384.
Ihssen Julian, Braun Artur, Faccio Greta, Gajda-Schrantz Krisztina, Thöny-Meyer Linda (2014), Light harvesting proteins for solar fuel generation in bioengineered photoelectrochemical cells., in Current protein & peptide science
, 15(4), 374-84.
Tisserant Jean-Nicolas (2014), ORDERING ORGANIC THIN FILMS FOR APPLICATIONS IN ELECTRONICS AND PHOTONICS
, ETH Zürich, Zürich.
F. Boudoire R. Toth J. Heier A. Braun E. C. Constable (2014), Photonic light trapping in self-organized all-oxide microspheroids impacts photoelectrochemical water splitting, in Energy Environ. Sci.
, 7, 2680-2688.
Tisserant Jean-Nicolas, Broennimann Rolf, Hany Roland, Jenatsch Sandra, Nueesch Frank A., Mezzenga Raffaele, Bona Gian-Luca, Heier Jakob (2014), Resonance Light Scattering in Dye-Aggregates Forming in Dewetting Droplets, in ACS NANO
, 8(10), 10057-10065.
D.K. Bora A. Braun (2014), Solution Processed Transparent Nanoparticulate ZnO Thin Film Electrode for Photoelectrochemical Water Oxidation, in RSC Advances
, 4, 23562-2357.
Bora Debajeet K., Braun Artur, Constable Edwin C. (2013), "in rust we trust". Hematite-the prospective inorganic backbone for artificial photosynthesis, in Energy and Environmental Science
, 6(2), 407-425.
Hu Yelin, Bora Debajeet K., Boudoire Florent, Häussler Florian, Gräetzel Michael, Constable Edwin C., Braun Artur (2013), A dip coating process for large area silicon-doped high performance hematite photoanodes, in Journal of Renewable and Sustainable Energy
, 5(4), 043109-1-043109-9.
Bora Debajeet K., Hu Yelin, Thieß Sebastian, Erat Selma, Feng Xuefei, Mukherjee Sumanta, Fortunato Giuseppino, Gaillard Nicolas, Toth Rita, Gajda-Schrantz Krisztina, Drube Wolfgang, Grätzel Michaël, Guo Jinghua, Zhu Junfa, Constable Edwin C., Sarma D. D., Wang Hongxin, Braun Artur (2013), Between photocatalysis and photosynthesis: Synchrotron spectroscopy methods on molecules and materials for solar hydrogen generation, in Journal of Electron Spectroscopy and Related Phenomena
, 190(Part ), 93-105.
Regonini D., Teloeken A. C., Alves Annelise Kopp, Berutti Felipe Amorim, Gajda-Schrantz Krisztina, Bergmann Carlos Pérez, Graule Thomas J., Clemens Frank Jörg (2013), Electrospun TiO2 Fiber Composite Photoelectrodes for Water Splitting, in ACS Applied Materials and Interfaces
, 5(22), 11747-11755.
Gajda-Schrantz Krisztina, Tymen Simon, Boudoire Florent, Toth Rita, Bora Debajeet K., Calvet Wolfram, Grätzel Michaël, Constable Edwin C., Braun Artur (2013), Formation of an electron hole doped film in the α-Fe 2O3 photoanode upon electrochemical oxidation, in Physical Chemistry Chemical Physics
, 15(5), 1443-1451.
Scholder Olivier (2013), Helium focused ion beam fabricated plasmonic antennas with sub-5 nm gaps, in Nanotechnology
, 24(39), 5301.
Bora Debajeet K., Braun Artur, Erni Rolf P., Müller Ulrich R., Döbeli Max, Constable Edwin C. (2013), Hematite-NiO/α-Ni(OH)2 heterostructure photoanodes with high electrocatalytic current density and charge storage capacity, in Physical Chemistry Chemical Physics
, 15(30), 12648-12659.
Braun Artur, Sivula Kevin, Bora Debajeet K., Zhu JunFa, Zhang Liang, Grätzel Michaël, Guo Jinghua, Constable Edwin C. (2012), Direct observation of two electron holes in a hematite photoanode during photoelectrochemical water splitting, in Journal of Physical Chemistry C
, 116(32), 16870-16875.
Bora DK, Braun A, Erat S, Safonova O, Graule T, Constable EC (2012), Evolution of structural properties of iron oxide nano particles during temperature treatment from 250 degrees C-900 degrees C: X-ray diffraction and Fe K-shell pre-edge X-ray absorption study, in CURRENT APPLIED PHYSICS
, 12(3), 817-825.
Bora Debajeet K., Rozhkova Elena A., Schrantz Krisztina, Wyss Pradeep P., Braun Artur, Graule Thomas J., Constable Edwin C. (2012), Functionalization of nanostructured hematite thin-film electrodes with the light-harvesting membrane protein C-phycocyanin yields an enhanced photocurrent, in Advanced Functional Materials
, 22(3), 490-502.
Braun Artur, Chen Qianli, Flak Dorota, Fortunato Giuseppino, Gajda-Schrantz Krisztina, Grätzel Michaël, Graule Thomas, Guo Jinghua, Huang TzuWen, Liu Zhi, Popelo Anastasiya V., Sivula Kevin, Wadati Hiroki, Wyss Pradeep P., Zhang Liang, Zhu JunFa (2012), Iron resonant photoemission spectroscopy on anodized hematite points to electron hole doping during anodization, in ChemPhysChem
, 13(12), 2937-2944.
Braun Artur, Chen Qianli, Flak Dorota, Fortunato Giuseppino, Gajda-Schrantz Krisztina, Graetzel Michael, Graule Thomas, Guo Jinghua, Huang Tzu-Wen, Liu Zhi, Popelo Anastasiya V., Sivula Kevin, Wadati Hiroki, Wyss Pradeep P., Zhang Liang, Zhu Junfa (2012), Iron Resonant Photoemission Spectroscopy on Anodized Hematite Points to Electron Hole Doping during Anodization, in CHEMPHYSCHEM
, 13(12, SI), 2937-2944.
Bora DK, Braun A, Erat S, Ariffin AK, Lohnert R, Sivula K, Topfer J, Gratzel M, Manzke R, Graule T, Constable EC (2011), Evolution of an Oxygen Near-Edge X-ray Absorption Fine Structure Transition in the Upper Hubbard Band in alpha-Fe2O3 upon Electrochemical Oxidation, in JOURNAL OF PHYSICAL CHEMISTRY C
, 115(13), 5619-5625.
Bora Debajeet K., Braun Artur, Erni Rolf P., Fortunato Giuseppino, Graule Thomas J., Constable Edwin C. (2011), Hydrothermal treatment of a hematite film leads to highly oriented faceted nanostructures with enhanced photocurrents, in Chemistry of Materials
, 23(8), 2051-2061.
Tinguely Jean-Claude, Solarska Renata, Braun Artur, Graule Thomas (2011), Low-temperature roll-to-roll coating procedure of dye-sensitized solar cell photoelectrodes on flexible polymer-based substrates, in SEMICONDUCTOR SCIENCE AND TECHNOLOGY
, 26(4), 7.
Braun Artur, Erat Selma, Zhang Xiaojun, Chen Qianli, Huang Tzu-Wen, Aksoy Funda, Loehnert Romy, Liu Zhi, Mao Samuel S., Graule Thomas (2011), Surface and Bulk Oxygen Vacancy Defect States near the Fermi Level in 125 nm WO3-delta/TiO2 (110) Films: A Resonant Valence Band Photoemission Spectroscopy Study, in JOURNAL OF PHYSICAL CHEMISTRY C
, 115(33), 16411-16417.
Braun Artur, Akurati Kranthi K., Fortunato Giuseppino, Reifler Felix A., Ritter Axel, Harvey Ashley S., Vital Andri, Graule Thomas (2010), Nitrogen Doping of TiO2 Photocatalyst Forms a Second e(g) State in the Oxygen 1s NEXAFS Pre-edge, in JOURNAL OF PHYSICAL CHEMISTRY C
, 114(1), 516-519.
Solarska Renata, Alexander Bruce D., Braun Artur, Jurczakowski Rafał, Fortunato Giuseppino, Stiefel M., Graule Thomas J., Augustyński Jan W. (2010), Tailoring the morphology of WO3 films with substitutional cation doping: Effect on the photoelectrochemical properties, in Electrochimica Acta
, 55(26), 7780-7787.
We want to purchase several scientific instruments necessary as basic equipment for the func-tional characterization of ceramic materials relevant for photocatalytical (PC) and photoelectro-chemical (PEC) research studies. EMPA conducts a research program for sustainable and CO2 neutral energy economy. Its Labo-ratory for High Performance Ceramics (Hochleistungskeramik - HLK, in the Department for Ad-vanced Materials and Surfaces) serves this goal with a project on photoelectrochemical hydro-gen production by solar water splitting, which counts towards Switzerland’s responsibilities in Annex 26 in the International Energy Agency’s Hydrogen Implementation Agreement for 2008, and which is embedded in the mission of PEC house, administered by EPFL. In addition, HLK has active projects on photocatalysis to address the societies’ needs for clean water and hygi-enic surfaces. Our HLK is on a successful move from work on structural ceramics to research on functional ceramic materials. Photocatalysis has emerged as a very promising activity since some four years ago, beginning with one PhD thesis project that was successfully finished in early 2007. During the last three years, we have published 6-8 scientific papers on nanoparticle synthesis with application to photocatalysis. Currently we have two more PhD students, one postdoctoral student and several diploma students working on PC and PEC, and two scientists devote a ma-jor share of their efforts to these topics as well. HLK is looking forward to continue with the training of PhD students who will work on a joint basis to 50% at EMPA and the other time at their home universities in Poland. Our international research network on PC and PEC extends across Europe to Japan and the USA, and we are organizers of a PC/PEC symposium at the MRS 2009 Spring Meeting.While HLK’s traditional strength is in ceramic material synthesis, its new mission of research on functional ceramics is being impeded by the lack of basic analytical equipment for the functional characterization and performance assessment of photoactive ceramic materi-als. To better comply with our new mission, we need the instruments listed below which enable us to quantitatively determine solar-functional characteristics of our materials, and hence ad-vance to a true scientific laboratory.The costs of the six instruments amount to approximately 192,000 CHF. HLK will pay 66,228 CHF. The board of Directors at EMPA is requested to contribute with a 30,000 CHF. Together with another 96,227 CHF from SNF, we will be able to acquire a well suited set of laboratory equipment. The Swiss Federal Office of Energy endorses particularly our solar hydrogen activities and supports this project with an earnest money 18,000 CHF towards the salary for the installation of the equipment.