Structural mechanism behind piezoelectric enhancement in off-stoichiometric Na0. 5Bi0. 5TiO3 based lead-free piezoceramics A Mishra, DK Khatua, A De, B Majumdar, T Frömling, R Ranjan
Acta Materialia 164, 761-775, 2019
51 2019 Flattening of free energy profile and enhancement of energy storage efficiency near morphotropic phase boundary in lead-free BZT-xBCT R Syal, R Goel, A De, AK Singh, G Sharma, OP Thakur, S Kumar
Journal of Alloys and Compounds 873, 159824, 2021
27 2021 Large temperature tuning of emission color of a phosphor by dual use of Raman and Photoluminescence signals A De, R Ranjan
Materials Horizons 7 (4), 1101-1105, 2020
22 2020 Off-stoichiometry, structural-polar disorder and piezoelectricity enhancement in pre-MPB lead-free Na0. 5Bi0. 5TiO3-BaTiO3 piezoceramic A Mishra, DK Khatua, A De, R Ranjan
Journal of Applied Physics 125 (21), 2019
21 2019 Factors contributing to the local polar-structural heterogeneity and ultrahigh piezoelectricity in Sm-modified Pb (Mg1/3Nb2/3) O3–PbTiO3 N Kumar, A Mishra, A De, U Shankar, R Ranjan
Journal of Physics D: Applied Physics 53 (16), 165302, 2020
20 2020 Increasing intervention of nonferroelectric distortion and weakening of ferroelectricity at the morphotropic phase boundary in G Das Adhikary, DK Khatua, A Mishra, A De, N Kumar, S Saha, ...
Physical Review B 100 (13), 134111, 2019
20 2019 Synergistic role of poling in enhancing structural heterogeneity in perovskite piezoelectrics A De, R Ranjan
Physical Review B 98 (9), 094111, 2018
18 2018 Resonance/off-resonance excitations: implications on the thermal evolution of Eu 3+ photoluminescence A De, MA Hernández-Rodríguez, ANC Neto, V Dwij, V Sathe, LD Carlos, ...
Journal of Materials Chemistry C 11 (18), 6095-6106, 2023
13 2023 Enhancement in the piezoelectric properties in lead-free BZT-x BCT dense ceramics R Syal, M Kumar, AK Singh, A De, OP Thakur, S Kumar
Journal of Materials Science: Materials in Electronics 31, 21651-21660, 2020
11 2020 Organic Multifunctional Materials: Second Harmonic, Ferroelectric, and Dielectric Properties in N -Benzylideneaniline Analogues R Kumari, R Seera, A De, R Ranjan, TN Guru Row
Crystal Growth & Design 19 (10), 5934-5944, 2019
10 2019 Synergistic use of Raman and photoluminescence signals for optical thermometry with large temperature sensitivity A De, V Dwij, V Sathe, MA Hernández-Rodríguez, LD Carlos, R Ranjan
Physica B: Condensed Matter 626, 413455, 2021
8 2021 Optical temperature sensing by tuning photoluminescence in wide (visible to NIR) wavelength range in Eu3+-doped Bi-based relaxor ferroelectric A DE, A MISHRA, DK KHATUA, V DWIJ, V SATHE, S JENA, R RANJAN
Optics Letters 47 (3), 489-492, 2022
6 * 2022 Effect of A-site off-stoichiometry on the microstructural, structural, and electromechanical properties of lead-free tetragonal 0.80 Na 0.5 Bi 0.5 TiO 3–0.20 BaTiO 3 (NBT–20BT … A Mishra, G Abebe, G Jafo, G Das Adhikary, A De
Journal of Materials Science: Materials in Electronics 32, 12578-12593, 2021
5 2021 Microstructural, structural, dielectric, piezoelectric and energy storage properties of 0.2 wt% MnO 2 doped (0.94-x) Na 0.5 Bi 0.5 TiO 3–0.06 BaTiO 3-xK 0.5 Na 0.5 NbO 3 … G Abebe, G Jafo, GD Adhikary, A De, R Ranjan, A Mishra
SN Applied Sciences 2, 1-18, 2020
5 2020 Large structural heterogeneity in submicrometer BaTiO3 revealed via Eu+ 3 photoluminescence study A De, R Ranjan
Journal of Applied Physics 128 (12), 2020
5 2020 Magnetic enhancement of ferroelectric polarization in a particulate multiferroic composite derived in situ via additive assisted sintering of a pseudo ternary alloy system … S Saha, RP Singh, A Kumar, A De, P Pandey, B Narayan, H Basumatary, ...
Applied physics letters 116 (14), 2020
5 2020 Symmetry Engineering of Epitaxial Hf0.5 Zr0.5 O2 Ultrathin Films A De, MH Jung, YH Kim, SB Bae, SG Jeong, JY Oh, Y Choi, H Lee, Y Kim, ...
ACS Applied Materials & Interfaces, 2024
4 2024 A comparative study of energy harvesting performance of polymer‐piezoceramic composites fabricated with different piezoceramic constituents B Mahale, N Kumar, A De, R Pandey, R Ranjan
International Journal of Energy Research 45 (2), 2694-2708, 2021
4 2021 Phase modulation of Hf0.5 Zr0.5 O2 /La0.7 Sr0.3 MnO3 heterostructure by growth orientation mediated strain engineering A DE, SGYO JEONG, JY Oh, SB Bae, H Lee, T Choi, SM Yang, YM Kim, ...
Bulletin of the American Physical Society, 2024
2024 Designing multifunctional organic thermochromic ferroelectric materials: remarkable melt-cool large thermal hysteresis of reversible single crystal to single crystal transformation R Kumari, A De, AJ Bhattacharyya, TNG Row
Materials Advances 5 (8), 3411-3423, 2024
2024 
Rajeev RanjanDepartment of Materials Engineering Indian Institute of ScienceEmail verificata su iisc.ac.in