Julien
studied chemistry at theUniversity
of
Lausanne, Switzerland,
and graduated with a Diplôme de chimiste in
2001 working under Carlo Floriani on the
synthesis of coordination compounds reactive
to dinitrogen. He then
joined Dan Nocera's group at the Massachusetts
Institute
of Technology
in the USA to prepare and investigate novel
molecules able to store electrons at both a
transition metal ion and an organic site. After
obtaining his Ph. D. in inorganic chemistry from
MIT in 2006, Julien moved with a Humboldt
Fellowship to the department led by Ulrich
Gösele at the Max Planck
Institute of Microstructure Physics in
Germany to learn the chemistry and physics of
solids. He worked as a postdoc at the University
of Hamburg withKornelius
Nielsch for two years, and obtained a junior
faculty position in physics in Hamburg in
October 2009. Julien is also recognized as
a faculty member in the chemistry department. In his
research, Julien applies chemical concepts and
methods to the preparation of novel
nanostructured materials with well-controlled
physical properties.
H.
Wedemeyer, J. Michels, R. Chmielowski, S.
Bourdais, M. Sugiura, G. Dennler, J. Bachmann* Energy Environ. Sci.2013,
advance article “Nanocrystalline
solar cells with an antimony sulfide solid
absorber by atomic layer deposition”
C.
Schumacher,* K. G. Reinsberg, R. Rostek, L.
Akinsinde, S. Baessler, S. Zastrow, G. Rampelberg,
P. Woias, C. Detavernier, J. A. C. Broekaert, J.
Bachmann and K. Nielsch* Adv. Energy Mater.2012,
early view "Optimizations
of Pulsed Plated p and n-type Bi2Te3-Based Ternary
Compounds by Annealing in Different Ambient
Atmospheres"
K. Pitzschel,
J. Bachmann, J. M. Montero-Moreno, J. Escrig, D.
Görlitz, K. Nielsch Nanotechnology2012, 23, 495718 "Reversal
modes and magnetostatic interactions in
Fe3O4/ZrO2/Fe3O4 multilayer nanotubes"
J. Gemmer, Y.
Hinrichsen, A. Abel, J. Bachmann* J. Catal.2012, 290, 220-224 “Systematic
catalytic current enhancement for the oxidation of
water at nanostructured iron(III) oxide
electrodes” C. Schumacher, K.
Reinsberg, L. Akinsinde, S. Zastrow, S.
Heiderich, W. Toellner, G. Rampelberg,
C. Detavernier, J. Broeckaert, K.
Nielsch, J. Bachmann Adv. Energy
Mater.2012, 2,
345-352 “Optimization
of electrodeposited p-doped Sb2Te3
thermoelectric films by millisecond
potentiostatic pulses” J. Bachmann,* A.
Zolotaryov, O. Albrecht, S.
Goetze, A. Berger, D. Hesse,
D. Novikov, K. Nielsch Chem.
Vapor Depos. 2011,
17, 177-180 “Stoichiometry of
nickel oxide films prepared by atomic
layer deposition”
K.
Nielsch,* J.
Bachmann, J.
Kimling, H.
Böttner Adv. Energy
Mater. 2011, 1,
713-731 “Thermoelectric
Nanostructures: From Physical Model Systems
towards Nanograined Composites” Y. T.
Chong, E. M. Y.
Yau, Y. Yang, M.
Zacharias, D.
Görlitz, K.
Nielsch, J.
Bachmann* J.
Appl. Phys. 2011, 110,
043930 “Superparamagnetic
behavior
in cobalt iron oxide
nanotube arrays by atomic
layer deposition” A. Santos,
J. M. Montero-Moreno, J. Bachmann, K. Nielsch,
P. Formentín, J. Ferré-Borrull,
J. Pallarès, L. F. Marsal ACS Appl.
Mater. Interfaces 2011, 3,
1925-1932 “Understanding Pore Rearrangement
during Mild to Hard Transition in Bilayered
Porous Anodic Alumina Membranes” A.
Zolotaryov,* J. Bachmann,
J. M. Montero Moreno, K.
Pitzschel, K. Nielsch Precision
Engin.2011,
35, 496-499 “Steaming out
micro- and nanostructures
using the hydrophilic nature
of MgO" G. Salvan,
R. Pacurariu, W. Li, M.
Fronk, D. M. Rosu, D. R.
T. Zahn, S. Schubert, G.
Radons, S. Schulze, M.
Hietschold, J. Bachmann,
K. Nielsch, C.
Sangregorio, B.
Bräuer Appl. Phys. A2011, 103,
433-438 “Nickel
nanoparticles in fullerene matrix
fabricated by co-evaporation:
structural, magnetic, and
magneto-optical properties"
K.
Pitzschel, J. Bachmann,* S.
Martens, J. M. Montero-Moreno,
J. Kimling, G. Meier, J. Escrig,
K. Nielsch, D. Görlitz J. Appl.
Phys.2011,
109,
033907 “Magnetic reversal
of nickel nanowires with
modulated cylinder diameters” A.
Zolotaryov,* S. Goetze, J.
Bachmann, D. Goerlitz, D.
Hesse, K. Nielsch Adv. Engin.
Mater. 2011,
13, 330-335 “Ferromagnetism
and Morphology of Annealed Fe2O3/CoXOY/ZnO
Thin Films” R.
Zierold,* Z. Wu, J. Biskupek, U.
Kaiser, J. Bachmann, C. E. Krill
III, K. Nielsch Adv. Funct.
Mater. 2011, 21,
226-232 “Magnetic,
multi-layered nanotubes of low aspect
ratios for liquid suspensions” Y. T. Chong,
E. M. Y. Yau, K. Nielsch,
J. Bachmann* Chem. Mater. 2010,
22,
6506-6508 “Direct
atomic layer deposition of ternary
ferrites with various magnetic
properties”
R. B. Yang, N. Zakharov, O.
Moutanabbir, K. Scheerschmidt,
L.-M. Wu, U. Gösele, J.
Bachmann,* K. Nielsch J. Am. Chem.
Soc. 2010, 132,
7592-7594 “The
transition between conformal atomic layer
epitaxy and nanowire growth”
Y. T. Chong,
D. Görlitz, S. Martens, M. Y.
E. Yau, S. Allende, J. Bachmann,* K.
Nielsch Adv.
Mater. 2010, 22, 2435-2439 “Multilayered
core-shell
nanowires displaying two distinct
magnetic switching events”
O. Albrecht, R.
Zierold, C. Patzig, J. Bachmann, C.
Sturm, B. Rheinländer, M.
Grundmann, D.
Görlitz, B. Rauschenbach,
K. Nielsch Phys. Stat.
Sol. B 2010, 247,
1365-1371 “Tubular
magnetic nanostructures based on
glancing angle deposited templates and
atomic layer deposition”
J. Klammer,*
J. Bachmann, W. Töllner, D.
Bourgault, L. Cagnon, U. Gösele,
K. Nielsch Phys.
Stat. Sol. B 2010,
247,
1384-1392 “Electrochemical
route to thermoelectric nanowires
via organic electrolytes” D.
Hiller,* R. Zierold, J. Bachmann, M.
Alexe, Y. Yang, J. W. Gerlach, A.
Stesmans, M. Jivanescu, U. Müller, J.
Vogt, H. Hilmer, P. Löper, M.
Künle, F. Munnik, K. Nielsch, M.
Zacharias J. Appl.
Phys. 2010, 107,
064314 “Low
temperature silicon dioxide by thermal
atomic layer deposition: investigation of
material properties”
K. Pitzschel, J. M. Montero Moreno, J. Escrig,
O. Albrecht, K. Nielsch, J. Bachmann* ACS Nano 2009, 3,
3463-3468
“Controlled Introduction of Diameter
Modulations in Arrayed Magnetic Iron Oxide
Nanotubes”
R. B. Yang, J. Bachmann,* E.
Pippel, A. Berger, J. Woltersdorf, U.
Gösele, K. Nielsch* Adv. Mater. 2009, 21,
3170-3174
“Pulsed vapor-liquid-solid growth of antimony
selenide and antimony sulfide nanowires”
R. B. Yang, J. Bachmann,* M. Reiche, J. W.
Gerlach, U. Gösele, K. Nielsch* Chem. Mater. 2009, 21,
2586-2588
“Atomic layer deposition of antimony oxide and
antimony sulfide”
J. Bachmann,* J. Escrig, K. Pitzschel, J. M.
Montero Moreno, J. Jing, D. Görlitz, D.
Altbir, K. Nielsch J. Appl. Phys.
2009, 105, 07B521
“Size effects in ordered arrays of magnetic
nanotubes: Pick your reversal mode”
(selected in the Virtual Journal of Nanoscale Science
& Technology2009, 12)
L. Moreno i Codinachs,* C. Birkenstock, T.
Garma, R. Zierold, J. Bachmann, K. Nielsch, M.
J. Schöning, A. Fontcuberta i Morral Phys. Stat.
Sol. (a) 2009, 206, 435-441
“A micron-sized nanoporous multifunction sensing
device”
J. Bachmann, T. S. Teets, D. G. Nocera* Dalton Trans.
2008,
4549-4551
“Proton storage in the periphery of
zirconium(IV) porphyrinogen”
J. Bachmann,* R. Zierold, Y. T. Chong, R.
Hauert, C. Sturm, R. Schmidt-Grund, B.
Rheinländer, U. Gösele, K. Nielsch* Angew. Chem.
Int. Ed. 2008, 47, 6177-6179, and Angew. Chem. 2008, 120,
6272-6274
“A Practical, Self-Catalytic, Atomic Layer
Deposition of Silicon Dioxide”
(“Selbstkatalytische Atomlagenabscheidung von
Siliciumdioxid”)
J. Escrig, J. Bachmann, J. Jing, M. Daub, K.
Nielsch, D. Altbir Phys. Rev. B 2008, 77, 214421
“Crossover between two different magnetization
reversal modes in arrays of iron oxide
nanotubes”
(selected in the Virtual Journal of Nanoscale Science
& Technology2008, 17)
J. Bachmann,* J. Jing, M. Knez, S. Barth, H.
Shen, S. Mathur, U. Gösele, K. Nielsch* J. Am. Chem.
Soc. 2007,
129,
9554-9555
“Ordered Iron Oxide Nanotube Arrays of
Controlled Geometry and Tunable Magnetism by
Atomic Layer Deposition”
(featured in the “Research Highlights” of Nature
Nanotechnology online 2007,
doi:10.1038/nnano.2007.255)
J. Bachmann, J. M. Hodgkiss, E. R. Young, D. G.
Nocera* Inorg. Chem. 2007, 46, 607-609
“Ground- and Excited-State Reactivity of Iron
Porphyrinogens”
J. Y. Yang, J. Bachmann, D. G. Nocera* J. Org. Chem. 2006, 71, 8706-8714 “Hangman
Salen Platforms Containing Two Xanthene
Scaffolds” J.
Bachmann, D. G. Nocera* Inorg. Chem. 2005, 44, 6930-6932
“Structural Tuning of Ligand-Based
Two-Electron Intervalence Charge Transfer” J.
Rosenthal, J. Bachman, J. L. Dempsey, A. J.
Esswein, T. G. Gray, J. M. Hodgkiss, D. R.
Manke, T. D. Luckett, B. Pistorio, A. S.
Veige, D. G. Nocera* Coord. Chem. Rev. 2005, 249, 1316-1326 “Oxygen
and hydrogen photocatalysis by two-electron
mixed-valence coordination compounds” J.
Bachmann, D. G. Nocera* J. Am. Chem. Soc. 2005, 127, 4730-4743
“Multielectron Redox Chemistry of Iron
Porphyrinogens” J.
Bachmann, D. G. Nocera* J. Am. Chem. Soc. 2004, 126, 2829-2837
“Multielectron Chemistry of Zinc
Porphyrinogen: A Ligand-Based Platform for
Two-Electron Mixed Valency”
Doctoral dissertation:
“Metal-ligand redox interaction in the multielectron
chemistry of porphyrinogen coordination compounds”
(2006)
available online from DSpace
at MIT.
Book review:
“Nanotechnology: Understanding Small Systems, by
Rogers, Pennathur and Adams” Angew. Chem. Int.
Ed. 2008,
47,
4778-4779, and Angew.
Chem. 2008,
120,
4856-4857