[1] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland
[2] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
[3] Helmholtz Zentrum Mat & Energie, Inst Silizium Photovolta, D-12489 Berlin, Germany
[4] Helmholtz Zentrum Mat & Energie, Inst Methoden & Instrumente Forsch Synchrotronstr, D-12489 Berlin, Germany
[5] Univ Copenhagen, Dept Chem, DK-2100 Copenhagen, Denmark
[6] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
[7] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland