Dr. Neelam Yadav


Dr. Neelam Yadav

Assistant Professor
Department of Physics
Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India-211004
E-mail: neelamy[at]mnnit[dot]ac[dot]in
Telephone: 09369402579(O)

Research Publications


Book Chapter:

Neelam Yadav, Ravindra Dhar. Liquid Crystalline materials for efficient solar energy harvesting, pages 211-238. In Unconventional Liquid crystals and their applications. Editors: Wei Lee and Sandeep Kumar, de Gruyter 2021. ISBN-9783110584370.
Neelam Yadav, Ravindra Dhar. Impedance Spectroscopy, pages 515-540. In Modern techniques of spectroscopy: basics, instrumentation and applications. Editors: Dheeraj K. Singh, Manik Pradhan, Springer 2021. ISBN-9789813360839.

Journals:

Y. Takanishi, Neelam Yadav, V. P. Panov, H. Iwayama, F. Araoka, A. Fukuda, J. K. Vij. Subphase with four-layer superlattice structure confirmed by resonant soft x-ray scattering in thresholdless antiferroelectric liquid crystal mixtures. Physical Review E 2026, 113, 055411.
R. Uttam, Neelam Yadav, M. Sahai, A. Belik, W. Jiang, G. H. Mehl, J. K. Vij, Y. P. Panarin. Ferroelectric and hyper dielectric modes in ferronematic liquid crystals. J. Material Chemistry C 2026, DOI: 10.1039/d6tc00004e.
S. Ansari, R. Uttam, N. Yadav, C. Schmiedl, E. Donnelly, Y.P. Panarin, M. Fisch, P. Knipe, J. K. Vij. Ferroelectric Nematic Mesogens with wide Temperature Ranges. ACS Omega 2026, DOI: 10.1021/acsomega.5c11391.
A. Baghla, M. Sahai, N. Yadav, S. P. Gupta, V. Punjani, V. Manjuladevi, J. K. Vij, S. K. Pal. Unusual Polar Ordering and Room Temperature Blue Phase Stabilization in Tetrafluorinated Bent-Shaped Mesogens. Chemical Science, 2025, 16, 8002-8013.
E. Coleman, A. Kelly, Adam Kelly, C. Gabbett, L. Doolan, S. Liu, N. Yadav, J. K. Vij, J. N. Coleman. Extracting The Temperature Dependence of Both Nanowire Resistivity and Junction Resistance from Electrical Measurements on Printed Silver Nanowire Networks. ACS Applied Electronic Materials, 2025, 7, 806-815.
Y. P. Panarin, W. Jiang, N. Yadav, M. Sahai, Y. Tang, X. Zeng, O. E. Panarina, G. H. Mehl, J. K. Vij. Colossal Dielectric Permittivity and Superparaelectricity in Phenyl Pyrimidine Based Liquid Crystals. J. Materials Chemistry C, 2025, 13, 1507-1518.
C. Gabbett, A. G. Kelly, E. Coleman, L. Doolan, T. Carey, K. Synnatschke, S. Liu, A. Dawson, D. O’Suilleabhain, J. Munuera, E. Caffrey, J. B. Boland, Z. Sofer, G. Ghosh, S. Kinge, L. D. A. Siebbeles, N. Yadav, J. K. Vij, M. Awais Aslam, A. Matkovic, J. N. Coleman Understanding How Junction Resistances Impact the Conduction Mechanism in Nanonetworks. Nature Communications, 2024, 15, 4517.
L. Hughes, A. Roy, N. Yadav, C. Downing, M. P. Browne, J. K. Vij, V. Nicolosi. Dielectric Engineering of Perovskite Bamn03 for The Rapid Heterogeneous Nucleation of Pt Nanoparticles for Catalytic Applications. Advanced Functional Materials, 2024, 34, 2402103.
N. Yadav, Y. P. Panarin, W. Jiang, G. H. Mehl, J. K. Vij. Collective Relaxation Processes in Nonchiral Nematics. Crystals 2023, 13(6), 962.
N. Yadav, Y. P. Panarin, W. Jiang, G. H. Mehl, J. K. Vij. Spontaneous mirror symmetry breaking and chiral segregation in the achiral ferronematic compound DIO. Phys. Chem. Chem. Phys. 2023, 25, 9083.
N. Yadav, Y. P. Panarin, J. K. Vij, W. Jiang, G. H. Mehl. Two mechanisms for the formation of the ferronematic phase studied by dielectric spectroscopy. J. Mol. Liquids 2023, 378, 121570.
N. Yadav, Y. P. Panarin, J. K. Vij, W. Jiang, G. H. Mehl. Optical activity and linear electrooptic response in the paraelectric subphase of an achiral ferroelectric nematic compound. Liquid Crystals 2023, 50, 1375-1382.
K. Shirota, A. Fukuda, N. Yadav, V. P. Panov, J. K. Vij, Y. Yamagata, and K. Ishikawa Response to an applied electric field in an antiferroelectric 1/2 subphase: The role of thermal fluctuations. Physical Review E 2023, 107, 064701.
S. Kaur, G. Mohiuddin, N. Yadav, S. K. Pal, Nematic Phase of Polar Unsymmetrical Bent-Core Molecules. Chem. Phys. Chem. 2023, e202300133.
S. P. Sreenilayam, N. Yadav, Y. P. Panarin, G. Shanker, J. K. Vij. Electrooptic, pyroelectric and dielectric spectroscopic studies of nematic and twist bend nematic phases of achiral hockey-shaped bent-core Liquid Crystal. J. Mol. Liquids 2022, 315, 118632.
N. Yadav, S. Kaur, V. Punjani, A. Barthakur, A. Baghla, S. Dhara, S. K. Pal, Chemical and physical aspects of recent bent-shaped liquid crystals exhibiting mostly nematic and smectic phases. Liq. Cryst. 2022, 49, 1078-1146.
M. Chemingui, U. B. Singh, N. Yadav, R. S. Dabrowski, R. Dhar. Effect of iron oxide ( y- Fe2O3) nanoparticles on the morphological, electro-optical and dielectric properties of a nematic liquid crystalline material. J. Mol. Liquids 2020, 319, 114299.
R. Uttam, N. Yadav, S. Kumar, R. Dhar. Strengthening of columnar hexagonal phase of a room temperature discotic liquid crystalline material by using ferroelectric barium titanate nanoparticles J. Mol. Liquids 2019, 294, 111609.
Y. Takanishi, A. Iida, N. Yadav, A. D. L. Chandani Perera, A. Fukuda, M. A. Osipov, J. K. Vij. Unexpected electric-field-induced antiferroelectric liquid crystal phase in the SmC∗α temperature range and the discrete flexoelectric effect. Phys. Rev. E 2019, 100, 010701(R).
N. Yadav, V. Swaminathan, V. P. Panov, R. Dhar, J. K. Vij. Elucidation of the de Vries behaviour in terms of the orientational order parameter, apparent tilt angle, and field-induced tilt angle for smectic liquid crystals by polarized infrared spectroscopy. Phys. Rev. E 2019, 100, 052704.
H. H. M. Elkhalgi, S. Khandka, N. Yadav, R. Dhar, R. Dabrowski. Effect of manganese (II) titanium oxide nano particles on the physical properties of a room temperature nematic liquid crystal 4-(trans-4′-n-hexylcyclohexyl) isothiocyanatobenzene. J. Mol. Liq. 2018, 268, 223-228.
N. Yadav, V. P. Panov, V. Swaminathan, S. P. Sreenilayam, J. K. Vij, T. S. Perova, R. Dhar, A. Panov, D. Rodriguez-Lojo, P. J. Stevenson. Chiral smectic-A and smectic-C phases with de Vries characteristics. Phys. Rev. E. 2017, 95, 062704.
A. Kocot, J. K. Vij, T. S. Perova, K. Merkel, V. Swaminathan, S. P. Sreenilayam, N. Yadav, V. P. Panov, P. J. Stevenson, A. Panov, D. Rodriguez-Lojo. Observation of the de Vries behaviour in SmA∗ phase of a liquid crystal using polarized Raman scattering and infrared spectroscopy. J. Chem. Phys. 2017, 147, 094903.
M. Bajpai, N. Yadav, S. Kumar, R. Srivastava, R. Dhar. Bulk heterojunction solar cells made from carbazole copolymer and fullerene derivative with an inserted layer of discotic liquid crystalline material. Liq. Cryst. 2017, 44, 379-386.
M. Bajpai, N. Yadav, S. Kumar, R. Srivastava, R. Dhar. Incorporation of liquid crystalline triphenylene derivative in bulk heterojunction solar cell for improved efficiency. Liq. Cryst. 2016, 43, 928-936.
M. Bajpai, N. Yadav, S. Kumar, R. Srivastava, R. Dhar. Bulk hetero junction solar cell based on self-assembling of disc shaped liquid crystalline material. Liq. Cryst. 2016, 43, 305-313.
N. Yadav, S. Kumar, R. Dhar. Cadmium selenide quantum dots for the amelioration of the properties of a room temperature discotic liquid crystalline material. RSC Adv. 2015, 5, 78823-78832.
N. Yadav, R. Dabrowski, R. Dhar. Effect of alumina nanoparticles on dielectric permittivity, electrical conductivity, director relaxation frequency, threshold and switching voltages of a nematic liquid crystalline material. Liq. Cryst. 2014, 41, 1803-1810.