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Photothermal Effect: Large Photothermal Effect in Sub‐40 nm h‐BN Nanostructures Patterned Via High‐Resolution Ion Beam (Small 22/2018)
Author(s) -
López Josué J.,
Ambrosio Antonio,
Dai Siyuan,
Huynh Chuong,
Bell David C.,
Lin Xiao,
Rivera Nicholas,
Huang Shengxi,
Ma Qiong,
Eyhusen Soeren,
Kaminer Ido E.,
Watanabe Kenji,
Taniguchi Takashi,
Kong Jing,
Basov Dimitri N.,
JarilloHerrero Pablo,
Soljačić Marin
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201870101
Subject(s) - photothermal therapy , materials science , nanostructure , focused ion beam , nanotechnology , photothermal spectroscopy , photothermal effect , absorption (acoustics) , van der waals force , boron nitride , thermal expansion , optoelectronics , ion , chemistry , molecule , composite material , organic chemistry
In article number 1800072 , Josué J. López and co‐workers use photothermal microscopy to measure the near‐field absorption of nanostructured hexagonal boron nitride (h‐BN) and reveal a large photothermal expansion in the nanostructures. This effect is attributed to the anisotropy of the thermal expansion coefficients of h‐BN and the nanostructuring implemented. The photothermal expansion should be present in other van der Waals materials and may lead to nanomechanical switches driven by light.