TY - JOUR

T1 - Nanosecond Pulsed Laser‐Heated Nanocrystals Inside a Metal‐Organic Framework Matrix

AU - Niemeyer, Max

AU - Bessel, Patrick Michael

AU - Rusch, Pascal

AU - Himstedt, Rasmus

AU - Kranz, Daniel

AU - Borg, Hadir Mahmoud Abdelghaffar Moustafa

AU - Bigall, Nadja-Carola

AU - Dorfs, Dirk

N1 - Funding Information: The team of authors would like to thank following people and institutions: D.D. thanks the Deutsche Forschungsgemeinschaft for the DFG Research Grant 1580/5‐1. D.D. and N.C.B. are thankful for the funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy within the Cluster of Excellence PhoenixD (EXC2122). M.N. is thankful for the financial support by the Graduiertenakademie of the Leibniz University Hanover. P.B. and R.H. are thankful to the Hannover School for Nanotechnology for financial support. D.K. is grateful for funding by the Konrad‐Adenauer‐Stiftung (KAS). N.C.B received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant Agreement No. 714429). The whole team of authors thanks the Laboratorium of Nano‐ and Quantum Engineering for supporting work space, laboratories and access to the TEM and Apl. Prof. Armin Feldhoff for access to the XRD device. Open Access funding enabled and organized by Projekt DEAL.

PY - 2022/6/8

Y1 - 2022/6/8

N2 - Investigations on gold and gold-zinc oxide nanocrystals encapsulated in a matrix of a metal-organic framework (ZIF-8) upon plasmonic heating with nanosecond laser pulses are presented. Irradiation of Au@ZIF-8 composite particles leads to heating of the gold core and decomposition of surrounding matrix acting as temperature probe. Cavities inside the ZIF-8 matrix are found on TEM images after irradiation. Their size is determined dependent on laser energy density and the generated heat at the gold core after absorption of a laser pulse approximated. The surrounding of the gold cores can be heated up to ZIF-8 decomposition over a distance up to 60 nm. This represents a method to visualize heat transfer from the gold cores to the ZIF-8 matrix in three dimensions. Studies on ZIF-8 encapsulated Au@ZnO dot-rod particles give insight in heat transfer between the particle components and show the applicability of the method to different, more complex systems.

AB - Investigations on gold and gold-zinc oxide nanocrystals encapsulated in a matrix of a metal-organic framework (ZIF-8) upon plasmonic heating with nanosecond laser pulses are presented. Irradiation of Au@ZIF-8 composite particles leads to heating of the gold core and decomposition of surrounding matrix acting as temperature probe. Cavities inside the ZIF-8 matrix are found on TEM images after irradiation. Their size is determined dependent on laser energy density and the generated heat at the gold core after absorption of a laser pulse approximated. The surrounding of the gold cores can be heated up to ZIF-8 decomposition over a distance up to 60 nm. This represents a method to visualize heat transfer from the gold cores to the ZIF-8 matrix in three dimensions. Studies on ZIF-8 encapsulated Au@ZnO dot-rod particles give insight in heat transfer between the particle components and show the applicability of the method to different, more complex systems.

KW - Composite

KW - Laser Heating

KW - Metal Organic Framework

KW - Nanoparticles

KW - Plasmonics

UR - http://www.scopus.com/inward/record.url?scp=85129274953&partnerID=8YFLogxK

U2 - 10.1002/cnma.202200169

DO - 10.1002/cnma.202200169

M3 - Article

VL - 8

JO - CHEMNANOMAT

JF - CHEMNANOMAT

SN - 2199-692X

IS - 6

M1 - e202200169

ER -