Maths Karlsson

Forskare at Department of Physics, Condensed Matter Physics

My research group focuses on investigations of key fundamental properties of functional - mostly energy relevant - oxides. In addition to our expertise and traditional focus on proton conducting oxides, which show potential for next-generation intermediate temperature fuel cells, we are studying phosphors for use in solid state lighting, and most recently different types of hydride-ion conducting materials. A unifying theme is to investigate the mechanistic aspects of structural defects and dynamical excitations (local vibrational modes, diffusional motions) on the atomic length scale, and to correlate those elementary materials properties to the functional, macroscopic, properties of the materials. The primary tools to this end involve the use of the wider range of neutron scattering techniques and light spectroscopy, often combined with other, complementary, techniques, and theoretical modeling in collaboration with our research colleagues. We are therefore frequent users of instruments available at neutron sources and free-electron laser facilities around the world and to some extent also involved in the development of such methods.

Source: chalmers.se

Projects

2012–2016

Mekanistiska aspekter om protoner i rena energimaterial

Maths Karlsson Department of Applied Physics, Condensed Matter Physics
Swedish Foundation for Strategic Research (SSF)

2014–2016

New understanding and development of novel red phosphors for solid state lighting

Maths Karlsson Department of Applied Physics, Condensed Matter Physics
Formas

There might be more projects where Maths Karlsson participates, but you have to be logged in as a Chalmers employee to see them.

Publications

2016

Structure and Conductivity of Epitaxial Thin Films of In-Doped BaZrO3-Based Proton Conductors

Laura Mazzei, M. Wolff, D. Pergolesi et al
Journal of Physical Chemistry C. Vol. 120 (50), p. 28415-28422
Scientific journal article - peer reviewed
2016

Inorganic Phosphor Materials for Lighting

Yuan-Chih Lin, Maths Karlsson, M. Bettinelli et al
Topics in Current Chemistry. Vol. 374 (2)
Scientific journal article - peer reviewed
2016

Proton Dynamics in Hydrated BaZr0.9M0.1O2.95 (M = Y and Sc) Investigated with Neutron Spin-Echo

Daria Noferini, M. M. Koza, P. Fouquet et al
Journal of Physical Chemistry C. Vol. 120 (26), p. 13963-13969
Scientific journal article - peer reviewed
2016

Dynamics of Pyramidal SiH3- Ions in ASiH(3) (A = K and Rb) Investigated with Quasielastic Neutron Scattering

Carin Österberg, H. Fahlquist, U. Haussermann et al
Journal of Physical Chemistry C. Vol. 120 (12), p. 6369-6376
Scientific journal article - peer reviewed
2016

Structure and dehydration mechanism of the proton conducting oxide Ba2In2O5(H2O)(x)

Johan Bielecki, S. F. Parker, Laura Mazzei et al
Journal of Materials Chemistry A. Vol. 4 (4), p. 1224-1232
Scientific journal article - peer reviewed
2015

Structural Origin of the Mixed Glass Former Effect in Sodium Borophosphate Glasses Investigated with Neutron Diffraction and Reverse Monte Carlo Modeling

Maths Karlsson, M. Schuch, R. Christensen et al
Journal of Physical Chemistry C. Vol. 119 (49), p. 27275-27284
Scientific journal article - peer reviewed
2015

Alkali-ion concentration dependence of the structure of proton-conducting alkali thio-hydroxogermanates investigated with neutron diffraction

Maths Karlsson, Jonas Nordström, Aleksandar Matic et al
Solid State Ionics. Vol. 274, p. 40-45
Scientific journal article - peer reviewed
2015

The role of the ionic liquid C6C1ImTFSI in the sol–gel synthesis of silica studied using in situ SAXS and Raman spectroscopy

Moheb Nayeri, Kim Nygård, Maths Karlsson et al
Physical Chemistry Chemical Physics - PCCP. Vol. 17 (15), p. 9841-9848
Scientific journal article - peer reviewed
2015

Structural and Vibrational Properties of Silyl (SiH3-) Anions in KSiH3 and RbSiH3: New Insight into Si-H Interactions

V. F. Kranak, Yuan-Chih Lin, Maths Karlsson et al
Inorganic Chemistry. Vol. 54 (5), p. 2300-2309
Scientific journal article - peer reviewed
2015

Proton dynamics in oxides: insight into the mechanics of proton conduction from quasielastic neutron scattering

Maths Karlsson,
Physical Chemistry Chemical Physics - PCCP. Vol. 17 (1), p. 26-38
Scientific journal article - peer reviewed
2014

Short-range structure of the brownmillerite-type oxide Ba2In2O5 and its hydrated proton-conducting form BaInO3H

Johan Bielecki, S. F. Parker, Dharshani Ekanayake et al
Journal of Materials Chemistry A. Vol. 2 (40), p. 16915-16924
Scientific journal article - peer reviewed
2014

Liquid 1-propanol studied by neutron scattering, near-infrared, and dielectric spectroscopy

Per Sillrén, Aleksandar Matic, Maths Karlsson et al
Journal of Chemical Physics. Vol. 140 (12)
Scientific journal article - peer reviewed
2013

Preparing Swedish Students for the ESS

M. Wolff, Maths Karlsson,
Neutron News. Vol. 24 (3), p. 6
Scientific journal article - non peer reviewed
2013

Eu3+ as a luminescent probe for the local structure of trivalent dopant ions in barium zirconate-based proton conductors

P. Haro-Gonzalez, Maths Karlsson, Samuel Mwaniki Gaita et al
Solid State Ionics. Vol. 247, p. 94-97
Scientific journal article - peer reviewed
2013

Polarized neutron Laue diffraction on a crystal containing dynamically polarized proton spins

Maths Karlsson,
Journal of Applied Crystallography. Vol. 46, p. 30-34
Scientific journal article - peer reviewed
2013

Perspectives of neutron scattering on proton conducting oxides

Maths Karlsson,
Dalton Transactions. Vol. 42 (2), p. 317-329
Scientific journal article - peer reviewed
2012

Neutron diffraction study of the monoclinic to tetragonal structural transition in LaNbO4 and its relation to proton mobility

M. Huse, A. W. B. Skilbred, Maths Karlsson et al
Journal of Solid State Chemistry. Vol. 187, p. 27-34
Scientific journal article - peer reviewed
2010

Temperature-Dependent Infrared Spectroscopy of Proton-Conducting Hydrated Perovskite BaInxZr1-xO3-x/2 (x=0.10-0.75)

Maths Karlsson, Aleksandar Matic, Ezio Zanghellini et al
Journal of Physical Chemistry C. Vol. 114 (13), p. 6177-6181
Scientific journal article - peer reviewed
2010

Using Neutron Spin-Echo To Investigate Proton Dynamics in Proton-Conducting Perovskites

Maths Karlsson, Dennis Engberg, Mårten E. Björketun et al
Chemistry of Materials. Vol. 22 (3), p. 740-742
Scientific journal article - peer reviewed
2009

Short-range structure of proton-conducting perovskite BaInxZr1-xO3-x/2 (x=0-0

Maths Karlsson, Aleksandar Matic, Christopher S Knee et al
Chemistry of Materials. Vol. 20 (10), p. 3480-3486
Scientific journal article - peer reviewed
2009

Quasielastic neutron scattering of hydrated BaZr0.90A0.10O2.95 (A = Y and Sc)

Maths Karlsson, Aleksandar Matic, Dennis Engberg et al
Solid State Ionics. Vol. 180, p. 22-28
Scientific journal article - peer reviewed
2008

Previous Article Next Article Table of Contents Short-Range Structure of Proton-Conducting Perovskite BaInxZr1-xO3-x/2 (x = 0−0.75)

Maths Karlsson,
Chemistry of Materials. Vol. 20 (10), p. 3480–3486
Scientific journal article - peer reviewed
2008

Location of deuteron sites in the proton conducting perovskite BaZr0.50In0.50O3-y

Istaq Ahmed, Christopher S Knee, Maths Karlsson et al
Journal of Alloys and Compounds. Vol. 450 (1-2), p. 103-110
Scientific journal article - peer reviewed
2008

Crystal structure and proton conductivity of BaZr0.9Sc0

Istaq Ahmed, Maths Karlsson, Sten G. Eriksson et al
Journal of the American Ceramic Society. Vol. 91 (9), p. 3039-3044
Scientific journal article - peer reviewed
2008

Proton conduction in Perovskite Oxide BaZr0.5Yb0.5O3-δ Prepared by Wet Chemical Route

Istaq Ahmed, Christopher S Knee, Sten G. Eriksson et al
Journal of the Electrochemical Society . Vol. 155 (11), p. 97-102
Scientific journal article - peer reviewed
2008

O-H wag vibrations in hydrated BaInxZr1-xO3-x/2

Maths Karlsson, Aleksandar Matic, Stuart Parker et al
Physical Review B. Vol. 77, p. 104302
Scientific journal article - peer reviewed
2008

Structure of glassy lithium sulfate films sputtered in nitrogen: Insight from Raman spectroscopy and ab initio calculations

Patrik Johansson, Aleksandar Matic, Christian Muller et al
Physical Review B. Vol. 77, p. 094116
Scientific journal article - peer reviewed
2008

Structure of Proton-Conducting Alkali Thio-Hydroxogermanates

Maths Karlsson, Aleksandar Matic, Itai Panas et al
Chemistry of Materials. Vol. 20 (19), p. 6014-6021
Scientific journal article - peer reviewed
2007

Structural study and proton conductivity in Yb-doped BaZrO3

Istaq Ahmed, Sten G. Eriksson, Elisabet Ahlberg et al
SOLID STATE IONICS. Vol. 178 ((7-10)), p. 515-520
Scientific journal article - peer reviewed
2007

Neutron Diffraction and Far-Infrared Spectroscopy of Proton Conducting Alkali Thio-hydroxogermanates

Maths Karlsson, Aleksandar Matic, C.R. Nelson et al
Solid State Ionics. Vol. 178, p. 501-505
Scientific journal article - peer reviewed
2006

Synthesis and structural characterization of perovskite type proton conducting BaZr1−xInxO3−δ (0.0 ≤ x ≤ 0.75)

Istaq Ahmed, Sten G. Eriksson, Elisabet Ahlberg et al
Solid State Ionics. Vol. 177 (17-18), p. 1395-1403
Scientific journal article - peer reviewed
2006

Proton conductivity and low temperature structure of In-doped BaZrO3

Istaq Ahmed, Sten G. Eriksson, E. Ahlberg et al
Solid State Ionics. Vol. 177, p. 2357
Scientific journal article - peer reviewed
2006

Temperature Dependent Infrared Spectroscopy on Proton Conducting Alkali Thio-Hydroxogermanates

Maths Karlsson, C.R. Nelson, C.A. Martindale et al
Solid State Ionics. Vol. 177, p. 1009
Scientific journal article - peer reviewed
2005

Vibrational Properties of Protons in Hydrated BaInxZr1-xO3-x/2

Maths Karlsson, Mårten E. Björketun, Per G. Sundell et al
Physical Review B. Vol. 72, p. 1-7
Scientific journal article - peer reviewed
2005

Vibrational properties of proton conducting double pervoskites

Maths Karlsson, Aleksandar Matic, P Berastegui et al
Solid State Ionics. Vol. 176, p. 2971
Scientific journal article - peer reviewed