KUMMARA SUNIL KUMAR
@svuniversity.edu.in
doctorate and physics
sri venkateswara University
Eight years of research experience in the preparation of nanostructures by various synthesis routes and investigated for their properties useful for energy storage devices, sensors, photocatalytic hydrogen evaluation, fuel cells, electrochemical and environmental applications.
EDUCATION
Academic Credentials:
Ph.D. : Physics, June 2020, Sri Venkateswara University, Tirupati, INDIA.
*Thesis Title: “Investigations on (Ca, Gd) co-doped BiFeO3: Er sol-gel synthesis nanoparticles”
M.Phil. : Physics, November 2015, Sri Venkateswara University, Tirupati, INDIA.
* Dissertation Title: “Studies on Nanomaterials”.
M.Sc. : Physics, (2008-2010), Sri Venkateswara University, Tirupati, INDIA.
B.Sc. : Physics, Mathematics, and Chemistry as optional subjects (2003-2006),
Sri Krishnadevaraya University, Anantapuramu, INDIA.
RESEARCH INTERESTS
Multi-state memory devices, Catalysis, Sensors, perovskite solar cells, and Opto-electronic devices. Recycle the energy storage devices via eco-friendly methods and also interested to produce biodegradable energy conversion and storage devices.
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Ramanadha Mangiri, K. Sunil kumar, K. Subramanyam, A. Sudharani, D. Amaranatha Reddy, and R.P. Vijayalakshmi
Elsevier BV
K. Sunil Kumar, A. Sudharani, M. Ramanadha, S. Ramu, G. Murali, and R.P. Vijayalakshmi
Elsevier BV
Ramanadha Mangiri, K. Sunil kumar, K. Subramanyam, Y.C. Ratnakaram, A. Sudharani, D. Amaranatha Reddy, and R.P. Vijayalakshmi
Elsevier BV
Elavarthi Pragna, Mangiri Ramanadha, Ande Sudharani, and Kummara Sunil Kumar
Springer Science and Business Media LLC
A. Sudharani, K. Sunil Kumar, Ramanadha Mangiri, Y.C. Ratnakaram, and R.P. Vijayalakshmi
Elsevier BV
B. Yasoda, K. Sunil Kumar, M. Ramanadha, A. Sudharani, and R. P. Vijayalakshmi
Springer Science and Business Media LLC
P. Muniraja, K. Sunil Kumar, A. Sudharani, M. Ramanadha, S. Ramu, B. Poornaprakash, and R. P. Vijayalakshmi
Springer Science and Business Media LLC
K. Sunil Kumar, S. Ramu, A. Sudharani, M. Ramanadha, G. Murali, and R.P. Vijayalakshmi
Elsevier BV
Ramanadha Mangiri, D. Amaranatha Reddy, K. Subramanyam, K. Sunil Kumar, A. Sudharani, B. Poornaprakash, and R.P. Vijayalakshmi
Elsevier BV
P. Muniraja, K. Sunil Kumar, M. Ramanadha, A. Sudharani, Muchakayala Ravi, and R. P. Vijayalakshmi
Springer Science and Business Media LLC
S Ramu, T Chandrakalavathi, G Murali, K Sunil Kumar, A Sudharani, M Ramanadha, Koteswara Rao Peta, R Jeyalakshmi, and R P Vijayalakshmi
IOP Publishing
In recent days, 2-dimensional materials (2D) have become auspicious for gas sensor applications. Usually, the gas kinetics is poor at room temperature (RT). Considering the power consumption, photon excitation is an alternative way to enhance the gas kinetics at RT. In this work, we demonstrated the gas sensing properties of molybdenum disulfide (MoS2) monolayer at low temperature (RT ∼ 27 °C to 100 °C). The monolayer MoS2 gas sensor has been developed using atomic-layered MoS2 synthesized by facile chemical vapor deposition (CVD), and structural properties were carried out by Raman spectroscopy. The NO gas was tested at three different operating temperatures (27 °C, 50 °C and 100 °C) and the effect of photonic energy on gas sensing performance at RT also manifested. The experimental results revealed that atomic MoS2 sensor exhibited a response of about 25% at RT, and improved response (70%) was observed to NO gas under UV light (λ = 254 nm). A large number of charge carriers perturbed on the surface of MoS2 under UV illumination, which could be contributed to enhance the response of the MoS2 sensor at RT.
K. Sunil Kumar, M. Ramanadha, A. Sudharani, S. Ramu, and R. P. Vijayalakshmi
Springer Science and Business Media LLC
N. Manjula, K. Sunil Kumar, M. Ramanadha, A. Sudha Rani, and R. P. Vijayalakshmi
Springer Science and Business Media LLC
K. Udaya Kumar and C.K. Jayasankar
Elsevier BV