@article{dd129ce2923b414b8b9cabcbc5242c43,
title = "Cellulose-inorganic hybrids of strongly reduced thermal conductivity",
abstract = "The employment of atomic layer deposition and spin coating techniques for preparing inorganic–organic hybrid multilayer structures of alternating ZnO-CNC layers was explored in this study. Helium ion microscopy and X-ray reflectivity showed the superlattice formation for the nanolaminate structures and atomic force microscopy established the efficient control of the CNCs surface coverage on the Al-doped ΖnO by manipulating the concentration of the spin coating solution. Thickness characterization of the hybrid structures was performed via both ellipsometry and X-ray reflectivity and the thermal conductivity was examined by time domain thermoreflectance technique. It appears that even the incorporation of a limited amount of CNCs between the ZnO laminates strongly suppresses the thermal conductivity. Even small, submonolayer amounts of CNCs worked as a more efficient insulating material than hydroquinone or cellulose nanofibers which have been employed in previous studies.",
keywords = "Aluminum doping, Cellulose nanocrystals, Hybrids, Thermal conductivity, Zinc oxide",
author = "Panagiotis Spiliopoulos and Marie Gestranius and Chao Zhang and Ramin Ghiyasi and John Tomko and Kai Arstila and Matti Putkonen and Hopkins, {Patrick E.} and Maarit Karppinen and Tekla Tammelin and Eero Kontturi",
note = "Funding Information: Open Access funding provided by Aalto University. PS and MG were funded by Academy of Finland (grants no. 300364 and 300367). MK and RG received funding from European Union{\textquoteright}s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement (No. 765378), the Academy of Finland (Profi 3) and the use of RawMatters Finland Infrastructure (RAMI) at Aalto University. M.P received funding from the Academy of Finland by the profiling action on Matter and Materials, grant no. 318913. The work is a part of FinnCERES Materials Bioeconomy Ecosystem. PEH and JT received funding from the US Department of Defense, Multidisciplinary University Research Initiative through the Army Research Office, Grant no. W911NF-16-1-0406. Funding Information: PS and MG would like to acknowledge Academy of Finland (grants no. 300364 and 300367) for the financial support. MK and RG would like to acknowledge the European Union{\textquoteright}s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement (No. 765378), Academy of Finland (Profi 3) and the use of RawMatters Finland Infrastructure (RAMI) at Aalto University. M.P acknowledges funding from Academy of Finland by the profiling action on Matter and Materials, grant no. 318913. The work is a part of FinnCERES Materials Bioeconomy Ecosystem. The use of ALD center Finland research infrastructure is acknowledged. PEH and JT acknowledge funding from the US Department of Defense, Multidisciplinary University Research Initiative through the Army Research Office, Grant no. W911NF-16-1-0406. Publisher Copyright: {\textcopyright} 2022, The Author(s).",
year = "2022",
month = aug,
day = "11",
doi = "10.1007/s10570-022-04768-3",
language = "English",
volume = "29",
pages = "8151--8163",
journal = "Cellulose",
issn = "0969-0239",
publisher = "Springer",
}