2022
DOI: 10.1021/acs.jpcc.1c09771
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Picosecond-Resolved Raman Response of a Si Nanotip for Probing Temperature and Thermal Stress in the Confined Regime under Laser Heating

Abstract: Tip-assisted lithography is a technique full of potential for nanofabrication and data storage, allowing for nanofabrication within several nanometers using the heated nanotip. Thus, the knowledge of the instantaneous thermal response of the nanotip under the laser heating is important for temperature control. In this work, a prototype of an ultrafast thermal probing method for the apex of a silicon nanotip has been achieved. Instead of obtaining an average thermal response over the entire nanotip, the tempera… Show more

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Cited by 5 publications
(2 citation statements)
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“…Balandin [31,32] introduced Raman thermometry to measure the thermal conductivity of single-layer graphene; this technique was further applied to a wide range of 2D materials. [33][34][35] Deng et al [28] used an ultrafast thermal probing method to measure the reduction in thermal conductivity due to size effects, and successfully measured the temperature and thermal stress in the confined apex region of a nanotip. Despite these prior studies, a comprehensive understanding of ballistic thermal transport in GaN is still lacking, and further studies are needed to probe the characteristic length dependence of the thermal conductivity.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Balandin [31,32] introduced Raman thermometry to measure the thermal conductivity of single-layer graphene; this technique was further applied to a wide range of 2D materials. [33][34][35] Deng et al [28] used an ultrafast thermal probing method to measure the reduction in thermal conductivity due to size effects, and successfully measured the temperature and thermal stress in the confined apex region of a nanotip. Despite these prior studies, a comprehensive understanding of ballistic thermal transport in GaN is still lacking, and further studies are needed to probe the characteristic length dependence of the thermal conductivity.…”
Section: Introductionmentioning
confidence: 99%
“…Raman thermometry is one of steady state optical techniques [ 27 , 28 , 29 , 30 ] used to measure local temperatures with the relatively high spatial resolution . Near‐field thermal measurements based on tip‐enhanced Raman spectroscopy represent a non‐contact and reliable optical method to investigate the thermal response of a material.…”
Section: Introductionmentioning
confidence: 99%