Temperature dependent phonon shifts in few-layer black phosphorus

ACS Applied Materials & Interfaces
Dattatray J Late

Abstract

Atomically thin two-dimensional (2D) sheets of black phosphorus have attracted much attention due to their potential for future nanoelectronic and photonics device applications. Present investigations deal with the temperature dependent phonon shifts in a few-layer black phosphorus nanosheet sample prepared using micromechanical exfoliation on a 300 nm SiO2/Si substrate. The temperature dependent Raman spectroscopy experiments were carried out on a few-layer black phosphorus sample, which depicts softening of Ag(1), B2g, and Ag(2) modes as temperature increases from 77 to 673 K. The calculated temperature coefficients for Ag(1), B2g, and Ag(2) modes of the few-layer black phosphorus nanosheet sample were observed to be -0.01, -0.013, and -0.014 cm(-1) K(-1), respectively. The temperature dependent softening modes of black phosphorus results were explained on the basis of a double resonance process which is more active in an atomically thin sample. This process can also be fundamentally pertinent in other promising and emerging 2D ultrathin layer and heterostructured materials.

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Citations

Dec 9, 2015·ACS Applied Materials & Interfaces·Wancheng ZhaoTiancheng Mu
Oct 16, 2015·ACS Applied Materials & Interfaces·Amit S PawbakeDattatray J Late
Sep 9, 2015·Nano Letters·Michael EngelPhaedon Avouris
May 29, 2015·ACS Applied Materials & Interfaces·Hui ZhuRobert M Wallace
Apr 27, 2017·ACS Applied Materials & Interfaces·Peng HuangGuoxin Xie
Oct 3, 2018·Chemical Communications : Chem Comm·Manila Ozhukil ValappilSubbiah Alwarappan
Sep 27, 2018·Nanotechnology·Lejing PiTianyou Zhai
Mar 16, 2019·Beilstein Journal of Nanotechnology·Mahendra S Pawar, Dattatray J Late
Apr 23, 2017·Nanoscale Research Letters·B B WuDavid W Zhang
Nov 25, 2017·Chemical Communications : Chem Comm·Liao GuanJian Sha
May 8, 2020·Nanoscale·Pradip Kumar RoyZdeněk Sofer
Mar 19, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Jin-Wu JiangHarold S Park
Jun 2, 2021·The Journal of Physical Chemistry Letters·Siqi Zhu, Wei Zheng
Jul 20, 2021·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Gabriele FaraoneEmiliano Bonera
Aug 29, 2019·ACS Omega·Juan Gómez-PérezÁkos Kukovecz
Aug 23, 2019·ACS Nano·Damien TristantVincent Meunier
Sep 27, 2018·ACS Applied Materials & Interfaces·Xiao-Wei HuangHuang-Hao Yang

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