Prof. Dr. Alfred Ludwig

Prof. Dr.-Ing. Alfred Ludwig studied mechanical engineering at the University of Karlsruhe, specializing in materials science and microsystems technology. In 1999 he received the title "Dr.-Ing." from the University of Karlsruhe for his research on nanoscale magnetoelastic multilayer coatings, carried out at the Institute of Materials Research of the Forschungszentrum Karlsruhe. He then moved to the caesar research center in Bonn, in the "Smart Materials" group, where he developed high-frequency magnetoelastic coatings and devices. From December 2002 to September 2007, he was junior professor for "Werkstoffe der Mikrotechnik" at the Faculty of Mechanical Engineering of the Ruhr University Bochum (RUB) and at the same time head of the caesar research group "Combinatorial Materials Science". From October 2007 to 2012, he received a Heisenberg Professorship of the German Research Foundation for "Materials of Microtechnology" at RUB. Since the end of 2012, he has been a chair holder at RUB. From 2011 to 2016, he was coordinator of the inter-faculty "Materials Research Department" at RUB. He initiated and organized the new research building ZGH (Center for Interfacially Dominated High Performance Materials), of which he is scientific director since 2019. His research interests include high-throughput processes and MEMS tools for materials science, nanoscale layers, multifunctional materials (e.g., conventional and ferromagnetic shape memory alloys), and new materials for energy applications (e.g., materials for solar water splitting, electrocatalysts, thermoelectrics, ...). He has published more than 340 articles, more than 300 of them in peer-reviewed journals. Since 2022 he is Director of the Research Center Future Energy Materials and Systems (RC FEMS). He is PI in a new ERC Synergy Grant project (DEMI) and spokesperson of the new SFB 1625 (both projects start in 2024).

https://www.mdi.ruhr-uni-bochum.de/mdi/index.html.en

Publications

  • 2013
2013
  • article
article2013Sara Borhani-HaghighiMichael KieschnickYahya MotemaniAlan SavanDetlef RogallaHans-Werner BeckerJan MeijerAlfred Ludwig

High-throughput compositional and structural evaluation of a Li a(NixMnyCoz)Or thin film battery materials library

Sara Borhani-Haghighi, Michael Kieschnick, Yahya Motemani, Alan Savan, Detlef Rogalla, Hans-Werner Becker, Jan Meijer, Alfred Ludwig:
ACS Combinatorial Science (2013)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881507788&doi=10.1021%2fco4000166&partnerID=40&md5=54f2799f4836af425406abd126496485https://dx.doi.org/10.1021/co4000166
2013
  • article
article2013Chinmay KhareKirill SliozbergRobert MeyerAlan SavanWolfgang SchuhmannAlfred Ludwig

Layered WO3/TiO2 nanostructures with enhanced photocurrent densities

Chinmay Khare, Kirill Sliozberg, Robert Meyer, Alan Savan, Wolfgang Schuhmann, Alfred Ludwig:
International Journal of Hydrogen Energy (2013)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888001101&doi=10.1016%2fj.ijhydene.2013.09.142&partnerID=40&md5=866aafed5b00c23091dac5a5153bd611https://dx.doi.org/10.1016/j.ijhydene.2013.09.142
2013
  • article
article2013Zhenyu SunNingning DongKunpeng XieWei XiaDennis KönigTharamani Chikka NagaiahMiguel D. SánchezPetra EbbinghausAndreas ErbeXiaoyan ZhangAlfred LudwigWolfgang SchuhmannJun WangMartin Muhler

Nanostructured few-layer graphene with superior optical limiting properties fabricated by a catalytic steam etching process

Zhenyu Sun, Ningning Dong, Kunpeng Xie, Wei Xia, Dennis König, Tharamani Chikka Nagaiah, Miguel D. Sánchez, Petra Ebbinghaus, Andreas Erbe, Xiaoyan Zhang, Alfred Ludwig, Wolfgang Schuhmann, Jun Wang, Martin Muhler:
Journal of Physical Chemistry C (2013)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879334755&doi=10.1021%2fjp401736n&partnerID=40&md5=482e305b9458198187669b4df3ffc97chttps://dx.doi.org/10.1021/jp401736n
2013
  • conference
conference2013A.K. SchuppertA.A. TopalovA. SavanA. LudwigK.J.J. Mayrhofer

Pt-Cu alloys as catalysts for the oxygen reduction reaction - A thin-film study of activity and stability

A.K. Schuppert, A.A. Topalov, A. Savan, A. Ludwig, K.J.J. Mayrhofer:
ECS Transactions (2013)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904984443&doi=10.1149%2f05801.0587ecst&partnerID=40&md5=086c4505e12ab3beaecd99d46a93094ahttps://dx.doi.org/10.1149/05801.0587ecst
2013
  • article
article2013Andrei Ionut MardareAlfred LudwigAlan SavanAchim Walter Hassel

Scanning droplet cell microscopy on a wide range hafnium-niobium thin film combinatorial library

Andrei Ionut Mardare, Alfred Ludwig, Alan Savan, Achim Walter Hassel:
Electrochimica Acta (2013)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888352020&doi=10.1016%2fj.electacta.2013.03.065&partnerID=40&md5=4a59926c4b1332892895ec58d454fa9fhttps://dx.doi.org/10.1016/j.electacta.2013.03.065
2013
  • article
article2013Sven HamannHayo BrunkenSteffen SalomonRobert MeyerAlan SavanAlfred Ludwig

Synthesis of Au microwires by selective oxidation of Au-W thin-film composition spreads

Sven Hamann, Hayo Brunken, Steffen Salomon, Robert Meyer, Alan Savan, Alfred Ludwig:
Science and Technology of Advanced Materials (2013)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84875384132&doi=10.1088%2f1468-6996%2f14%2f1%2f015003&partnerID=40&md5=0f323810c9b787dd10d962bb9699fb40https://dx.doi.org/10.1088/1468-6996/14/1/015003
2013
  • article
article2013D. GrochlaA. SiegelS. HamannP.J.S. BuenconsejoM. KieschnickH. BrunkenD. KönigA. Ludwig

Time- and space-resolved high-throughput characterization of stresses during sputtering and thermal processing of Al-Cr-N thin films

D. Grochla, A. Siegel, S. Hamann, P.J.S. Buenconsejo, M. Kieschnick, H. Brunken, D. König, A. Ludwig:
Journal of Physics D: Applied Physics (2013)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84873908050&doi=10.1088%2f0022-3727%2f46%2f8%2f084011&partnerID=40&md5=58764ce485f6df879dd4502b2b9d5000https://dx.doi.org/10.1088/0022-3727/46/8/084011
  • 2012
2012
  • article
article2012A. StepanovichK. SliozbergW. SchuhmannA. Ludwig

Combinatorial development of nanoporous WO 3 thin film photoelectrodes for solar water splitting by dealloying of binary alloys

A. Stepanovich, K. Sliozberg, W. Schuhmann, A. Ludwig:
International Journal of Hydrogen Energy (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84863783671&doi=10.1016%2fj.ijhydene.2012.05.039&partnerID=40&md5=5fe92c0dd74826855d9a15126c5697achttps://dx.doi.org/10.1016/j.ijhydene.2012.05.039
2012
  • article
article2012S. BienholzE. SemmlerP. AwakowiczH. BrunkenA. Ludwig

Dual frequency capacitive plasmas in Fe and Ni sputter applications: Correlation of discharge properties on thin film properties

S. Bienholz, E. Semmler, P. Awakowicz, H. Brunken, A. Ludwig:
Plasma Sources Science and Technology (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84856880971&doi=10.1088%2f0963-0252%2f21%2f1%2f015010&partnerID=40&md5=3368552117c1bb39c643d18f875db624https://dx.doi.org/10.1088/0963-0252/21/1/015010
2012
  • article
article2012Lidong WangMichal BledowskiAyyappan RamakrishnanDennis KönigAlfred LudwigRadim Beranek

Dynamics of photogenerated holes in TiO2-polyheptazine hybrid photoanodes for visible light-driven water splitting

Lidong Wang, Michal Bledowski, Ayyappan Ramakrishnan, Dennis König, Alfred Ludwig, Radim Beranek:
Journal of the Electrochemical Society (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84873311847&doi=10.1149%2f2.010207jes&partnerID=40&md5=1da5ef4c496de3f087002892f73c9306https://dx.doi.org/10.1149/2.010207jes
2012
  • article
article2012S. Kauffmann-WeissS. HamannM.E. GrunerL. SchultzA. LudwigS. Fähler

Enhancing magnetocrystalline anisotropy of the Fe 70Pd 30 magnetic shape memory alloy by adding Cu

S. Kauffmann-Weiss, S. Hamann, M.E. Gruner, L. Schultz, A. Ludwig, S. Fähler:
Acta Materialia (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868205339&doi=10.1016%2fj.actamat.2012.08.001&partnerID=40&md5=7011b2125fd28e2087c373c880d42884https://dx.doi.org/10.1016/j.actamat.2012.08.001
2012
  • article
article2012Robert ZarnettaPio John S. BuenconsejoAlan SavanSigurd ThienhausAlfred Ludwig

High-throughput study of martensitic transformations in the complete Ti-Ni-Cu system

Robert Zarnetta, Pio John S. Buenconsejo, Alan Savan, Sigurd Thienhaus, Alfred Ludwig:
Intermetallics (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860223151&doi=10.1016%2fj.intermet.2012.03.044&partnerID=40&md5=da271ef1bc765937c25a87c662135b2fhttps://dx.doi.org/10.1016/j.intermet.2012.03.044
2012
  • article
article2012Teresa De Los ArcosStefan CwikAndrian P. MilanovVanessa GwildiesHarish ParalaTristan WagnerAlexander BirknerDetlef RogallaHans-Werner BeckerJörg WinterAlfred LudwigRoland A. FischerAnjana Devi

Influence of process parameters on the crystallinity, morphology and composition of tungsten oxide-based thin films grown by metalorganic chemical vapor deposition

Teresa De Los Arcos, Stefan Cwik, Andrian P. Milanov, Vanessa Gwildies, Harish Parala, Tristan Wagner, Alexander Birkner, Detlef Rogalla, Hans-Werner Becker, Jörg Winter, Alfred Ludwig, Roland A. Fischer, Anjana Devi:
Thin Solid Films (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868538998&doi=10.1016%2fj.tsf.2011.12.007&partnerID=40&md5=8eda4e82fd62c609e62f624ef1f45f1chttps://dx.doi.org/10.1016/j.tsf.2011.12.007
2012
  • article
article2012Robert MeyerSven HamannMichael EhmannSigurd ThienhausStefanie JaegerTobias ThiedeAnjana DeviRoland A. FischerAlfred Ludwig

Microgradient-heaters as tools for high-throughput experimentation

Robert Meyer, Sven Hamann, Michael Ehmann, Sigurd Thienhaus, Stefanie Jaeger, Tobias Thiede, Anjana Devi, Roland A. Fischer, Alfred Ludwig:
ACS Combinatorial Science (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84870274142&doi=10.1021%2fco3000488&partnerID=40&md5=e5220e3f8348a69531787d1d4ac55a92https://dx.doi.org/10.1021/co3000488
2012
  • article
article2012Pio John S. BuenconsejoAlexander SiegelAlan SavanSigurd ThienhausAlfred Ludwig

Preparation of 24 ternary thin film materials libraries on a single substrate in one experiment for irreversible high-throughput studies

Pio John S. Buenconsejo, Alexander Siegel, Alan Savan, Sigurd Thienhaus, Alfred Ludwig:
ACS Combinatorial Science (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84855597612&doi=10.1021%2fco2001263&partnerID=40&md5=726f085757dcc48532e8a5809bc160a0https://dx.doi.org/10.1021/co2001263
2012
  • article
article2012Zhenyu SunJustus MasaWei XiaDennis KönigAlfred LudwigZi-An LiMichael FarleWolfgang SchuhmannMartin Muhler

Rapid and surfactant-free synthesis of bimetallic Pt-Cu nanoparticles simply via ultrasound-assisted redox replacement

Zhenyu Sun, Justus Masa, Wei Xia, Dennis König, Alfred Ludwig, Zi-An Li, Michael Farle, Wolfgang Schuhmann, Martin Muhler:
ACS Catalysis (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84864629051&doi=10.1021%2fcs300187z&partnerID=40&md5=ae3deca890d9492cf2e6380ff10490e6https://dx.doi.org/10.1021/cs300187z
2012
  • article
article2012D. KönigP.J.S. BuenconsejoD. GrochlaS. HamannJ. Pfetzing-MicklichA. Ludwig

Thickness-dependence of the B2-B19 martensitic transformation in nanoscale shape memory alloy thin films: Zero-hysteresis in 75 nm thick Ti 51Ni38Cu11 thin films

D. König, P.J.S. Buenconsejo, D. Grochla, S. Hamann, J. Pfetzing-Micklich, A. Ludwig:
Acta Materialia (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-80055024911&doi=10.1016%2fj.actamat.2011.09.037&partnerID=40&md5=72b9ccf4da745e08301451c5e17a80fchttps://dx.doi.org/10.1016/j.actamat.2011.09.037
2012
  • article
article2012Sandra Kauffmann-WeissSven HamannMarkus Ernst GrunerJörg BuschbeckAlfred LudwigLudwig SchultzSebastian Fähler

Understanding the magnetic shape memory system Fe-Pd-X by thin film experiments and first principle calculations

Sandra Kauffmann-Weiss, Sven Hamann, Markus Ernst Gruner, Jörg Buschbeck, Alfred Ludwig, Ludwig Schultz, Sebastian Fähler:
Advanced Engineering Materials (2012)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84864701887&doi=10.1002%2fadem.201200052&partnerID=40&md5=35416303dee6c8f294eedb21ada65613https://dx.doi.org/10.1002/adem.201200052
  • 2011
2011
  • article
article2011Pio John S. BuenconsejoRobert ZarnettaDennis KönigAlan SavanSigurd ThienhausAlfred Ludwig

A new prototype two-phase (TiNi)-(β-W) SMA system with tailorable thermal hysteresis

Pio John S. Buenconsejo, Robert Zarnetta, Dennis König, Alan Savan, Sigurd Thienhaus, Alfred Ludwig:
Advanced Functional Materials (2011)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-78650592660&doi=10.1002%2fadfm.201001697&partnerID=40&md5=62a1b938a80204d8f7b1cc10bc18731chttps://dx.doi.org/10.1002/adfm.201001697
2011
  • article
article2011Sofie BurgerChristoph EberlAlexander SiegelAlfred LudwigOliver Kraft

A novel high-throughput fatigue testing method for metallic thin films

Sofie Burger, Christoph Eberl, Alexander Siegel, Alfred Ludwig, Oliver Kraft:
Science and Technology of Advanced Materials (2011)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-82955207607&doi=10.1088%2f1468-6996%2f12%2f5%2f054202&partnerID=40&md5=2dfc5ba859b23b3f58f56fa519be30a2https://dx.doi.org/10.1088/1468-6996/12/5/054202
2011
  • article
article2011Ali AbboudSebastian SendRobert HartmannLothar StrüderAlan SavanAlfred LudwigNikolay ZotovUllrich Pietsch

Applications of an energy-dispersive pnCCD for X-ray reflectivity: Investigation of interdiffusion in Fe-Pt multilayers

Ali Abboud, Sebastian Send, Robert Hartmann, Lothar Strüder, Alan Savan, Alfred Ludwig, Nikolay Zotov, Ullrich Pietsch:
Physica Status Solidi (A) Applications and Materials Science (2011)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-80155148311&doi=10.1002%2fpssa.201184268&partnerID=40&md5=4dec7de880ba9b982e5853afc56e093ahttps://dx.doi.org/10.1002/pssa.201184268
2011
  • article
article2011Vinay Shankar VidyarthiMartin HofmannAlan SavanKirill SliozbergDennis KönigRadim BeranekWolfgang SchuhmannAlfred Ludwig

Enhanced photoelectrochemical properties of WO3 thin films fabricated by reactive magnetron sputtering

Vinay Shankar Vidyarthi, Martin Hofmann, Alan Savan, Kirill Sliozberg, Dennis König, Radim Beranek, Wolfgang Schuhmann, Alfred Ludwig:
International Journal of Hydrogen Energy (2011)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-79953648536&doi=10.1016%2fj.ijhydene.2011.01.087&partnerID=40&md5=80ad209c061ac5ff966044d87a7c1a43https://dx.doi.org/10.1016/j.ijhydene.2011.01.087
2011
  • article
article2011Sofie BurgerBenjamin RuppAlfred LudwigOliver KraftChristoph Eberl
2011
  • article
article2011Yiu Wai LaiMichael KrauseAlan SavanSigurd ThienhausNektarios KoukourakisMartin R. HofmannAlfred Ludwig

High-throughput characterization of film thickness in thin film materials libraries by digital holographic microscopy

Yiu Wai Lai, Michael Krause, Alan Savan, Sigurd Thienhaus, Nektarios Koukourakis, Martin R. Hofmann, Alfred Ludwig:
Science and Technology of Advanced Materials (2011)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-82955247120&doi=10.1088%2f1468-6996%2f12%2f5%2f054201&partnerID=40&md5=b7e2cb76208b4bd671a658cd30b44e25https://dx.doi.org/10.1088/1468-6996/12/5/054201
2011
  • article
article2011R. ZarnettaS. KneipC. SomsenA. Ludwig

High-throughput characterization of mechanical properties of Ti-Ni-Cu shape memory thin films at elevated temperature

R. Zarnetta, S. Kneip, C. Somsen, A. Ludwig:
Materials Science and Engineering: A (2011)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-79959343563&doi=10.1016%2fj.msea.2011.05.006&partnerID=40&md5=3c7d8d613800846878f49da624a6a600https://dx.doi.org/10.1016/j.msea.2011.05.006