An Investigation of Structural and I-V characteristics of (1-x)LaMnO3.(x)rGO Nanocomposite Samples

POSTER

Abstract

The study focused on (1-x)LaMnO3 (LSMO).(x)rGO nanocomposites, exploring their structure and electrical behavior. Using XRD, FESEM, and Raman spectroscopy, dual phases were observed. Distinctive bipolar resistive switching behavior in I-V profiles indicated potential electronic applications. Increasing rGO led to an oxygen-deficient region, confirmed by XPS. Oxygen vacancies and ions were identified as pivotal in resistive switching. Sample x = 0.001 exhibited superior characteristics. HRTEM validated distinct lattice spacings. Conduction primarily followed Ohmic and Schottky emission phenomena. The research offers insights for engineering nanocomposites in electronics.

*K.Kumari acknowledges the Department of Science and Technology for their financial support through INSPIRE Fellowship Scheme.

Publication: 1. Kumari, Karuna, Subhasmita Kar, Ajay D. Thakur, and S. J. Ray. "Role of an oxide interface in a resistive switch." Current Applied Physics 35 (2022): 16-23.
2. Kumari, Karuna, Ashutosh Kumar, Ajay D. Thakur, and S. J. Ray. "Charge transport and resistive switching in a 2D hybrid interface." Materials Research Bulletin 139 (2021): 111195.
3.Sun, Yihui, Xiaoqin Yan, Xin Zheng, Yichong Liu, Yanguang Zhao, Yanwei Shen, Qingliang Liao, and Yue Zhang. "High on–off ratio improvement of ZnO-based forming-free memristor by surface hydrogen annealing." ACS applied materials & interfaces 7, no. 13 (2015): 7382-7388.

Presenters

  • Karuna Kumari

    • Indian Institute of Technology Patna

Authors

  • Karuna Kumari

    • Indian Institute of Technology Patna

  • Subhasmita Kar

    • IIT Patna, India
    • Department of Physics, Indian Institute of Technology, Patna - 801106, India

  • Soumya Jyoti J Ray

    • IIT Patna
    • Indian Institute of Technology Patna, Bihta, Bihar-801106
    • Indian Institute of Technology Patna
    • Indian Institute Of Technology Patna
    • Department of Physics, Indian Institute of Technology Patna, Bihta 801106, India
    • Department of Physics, Indian Institute of Technology Patna, Bihta 801106
    • Department of Physics, Indian Institute of Technology, Patna - 801106, India