@misc{mrkl_comparing_the_2020, 
author={Märkl, R.,Hohn, N.,Hupf, E.,Bießmann, L.,Körstgens, V.,Kreuzer, L.,Mangiapia, G.,Pomm, M.,Kriele, A.,Rivard, E.,Müller-Buschbaum, P.},
title={Comparing the backfilling of mesoporous titania thin films with hole conductors of different sizes sharing the same mass density},
year={2020},
howpublished = {journal article},
doi = {https://doi.org/10.1107/S2052252520000913},
abstract = {Efficient infiltration of a mesoporous titania matrix with conducting organic polymers or small molecules is one key challenge to overcome for hybrid photovoltaic devices. A quantitative analysis of the backfilling efficiency with time-of-flight grazing incidence small-angle neutron scattering (ToF-GISANS) and scanning electron microscopy (SEM) measurements is presented. Differences in the morphology due to the backfilling of mesoporous titania thin films are compared for the macromolecule poly[4,8-bis­(5-(2-ethyl­hexyl)­thio­phen-2-yl)benzo[1,2-b;4,5-b′]di­thio­phene-2,6-diyl-alt-(4-(2-ethyl­hexyl)-3-fluoro­thieno[3,4-b]thio­phene-)-2-carboxyl­ate-2-6-diyl)] (PTB7-Th) and the heavy-element containing small molecule 2-pinacol­boronate-3-phenyl­phen­anthro[9,10-b]telluro­phene (PhenTe-BPinPh). Hence, a 1.7 times higher backfilling efficiency of almost 70% is achieved for the small molecule PhenTe-BPinPh compared with the polymer PTB7-Th despite sharing the same volumetric mass density. The precise characterization of structural changes due to backfilling reveals that the volumetric density of backfilled materials plays a minor role in obtaining good backfilling efficiencies and interfaces with large surface contact.},
note = {Online available at: \url{https://doi.org/10.1107/S2052252520000913} (DOI). Märkl, R.; Hohn, N.; Hupf, E.; Bießmann, L.; Körstgens, V.; Kreuzer, L.; Mangiapia, G.; Pomm, M.; Kriele, A.; Rivard, E.; Müller-Buschbaum, P.: Comparing the backfilling of mesoporous titania thin films with hole conductors of different sizes sharing the same mass density. IUCrJ. 2020. vol. 7, no. 2, 268-275. DOI: 10.1107/S2052252520000913}}