Investigation of optical phonon modes and figure of merit of graphene oxide nanosheets for use in optical switching devices

Document Type : Original Article

Authors
Zahra Dehghani 1
Fatemeh Ostovari 2
Abbas Faraji Alamuti 3
1 Physics group, Faculty of Science, university of neyshabur, Neyshabur
2 Solid State group, Department of Physics
3 Physics group, faculty of science, university of neyshabur, neyshabur
Abstract
X-ray diffraction pattern (XRD), Transmission electron microscope (TEM), Raman spectroscopy and Fourier transform infrared (FTIR) are used to characterize the structure of graphene oxide nanosheets. The results show the presence of thin graphene oxide layers, which have a suitable crystal structure with a peak of about 10 degrees and a ratio of ID/IG about 0.99. Also, by employing Kramers-Kronig (KK) relations and obtaining their refractive index, extinction coefficient and dielectric function via FTIR spectroscopy, the optical phonon modes, the transverse optical phonon (TO) and the longitudinal optical phonon (LO), of this material have been calculated. Then, the nonlinear optical (NLO) properties were obtained through the single-beam Z-scan method using a continuous wave (CW) Nd:YAG laser with a wavelength of 532 nm. The Z-scan results show that graphene oxide nanosheets have the phenomena of self-focusing and two photon absorption (TPA). In addition, a suitable figure of merit (FOM) was obtained for these nanosheets.
Keywords
Graphene oxide nanosheets
FTIR spectroscopy
Kramers-Kronig relations
Figure of merit
Z-scan
[1] F. Ostovari, and MK. Moravvej-Farshi, Journal of Applied Physics, 120(14), 144505, (2016).
[2] E. Owji, H. Mokhtari, F. Ostovari, B. Darazereshki, and N. Shakiba, Scientific Reports, 11 (1), 1–10, (2021).
[3] Z. Dehghani, PhD Thesis, Faculty of Basic Sciences, Tarbiat Modares University, (2013).
[4] T. Zaki, K. I. Kabel and H. Hassan, Ceramics International, 38, 4861–4866, (2012).
[5] V. Lucarini, J.J. Saarinen, K.E. Peiponen, E.M. Vartiainen, Kramers–Kronig Relations in Optical Materials Research, Springer, New York, (2005).
[6] M. Nadafan, M. Parishani, Z. Dehghani, R. Malekfar, G.H.H. Khorrami, Results Physics, 7, 3619–3623, (2017).
[7] S.S. Ng, Z. Hassan, H. Abu Hassan, Jurnal Teknologi, 44, 67-76, (2006).
 [8] I. Asselberghs, J. Pérez-Moreno, K. Clays, Springer, Netherlands, Dordrecht, 419–459(2006).
[9] K.R.W.A.B.D. A. Miller, Nonlinear Optical Materials and Devices for Applications in Information Technology, first ed., (1995).
[10] M.G.M. Dekker, Characterization Techniques and Tabulations for Organic Nonlinear Optical Materials, Taylor & Francis, (1998).
[11] U.K. John, S.Mathew, Applied Physics A, 128, 128:259, (2022).
[12] E. Owji, H. Mokhtari, F. Ostovari, B. Darazereshki, N. Shakiba, Scientific Reports, 11, 1771, (2021).
[13] M. Joghataei, F. Ostovari, S. Atabakhsh, N. Tobeiha, Scientific Reports, 10, 9723, (2020).
[14] R. Surjyakanta, B.J.  Sreekantha,  Catalysis Communications,  92 (10), 31-34, (2017).
[15] Maxim K. Rabchinskii,  Scientific Reports, 10, 6902, (2020).
[16] V. Irani, A. Tavasoli, M. Vahidi, Journal of Colloid and Interface Science, 527, 57-67, (2018).
[17] L. Lai, L. Chen, D. Zhan, L. Sun, J. Liu, S. H. Lim, C.K. Poh, Z. Shen, J. Lin, Carbon, 49 (10), 3250-3257, (2001).
[18] G.H. Khorrami, A. Khorsand Zak, A. Kompany, R. yousefi, Ceramics International, 38, 5683-5690, (2012).
[19] M. Ghasemifard, S.M. Hosseini, Gh. H. Khorrami, Ceramics International, 35, 2899–2905, (2009).

  • Receive Date 21 August 2022
  • Revise Date 02 September 2022
  • Accept Date 13 September 2022