List of Publications

• A. Singh and S. Kumar, Structural, chemical, optical and photocatalytic properties of Zr co-doped anatase-rutile mixed phase TiO2: Ag nanoparticles. Journal of Alloys and Compounds 925 (2022) 166709. 
• S. Kumar, A. Kumar, T. Malhotra, S. Verma, Characterization of structural, optical and photocatalytic properties of silver modified Hematite (α-Fe2O3) nanocatalyst. Journal of Alloys and compounds 904 (2022)164006.
• A. Singh and S. Kumar, Effect of Ag doping on phase-change and photocatalytic performance of rutile–anatase mixed-phase titanium dioxide (TiO2) nanoparticles. Applied Physics A-Materials Science & Processing 127(11) (2021) 1-14.
• A. Singh, and S. Kumar, Study of pure and Ag-doped TiO2 nanoparticles for photocatalytic degradation of methylene blue. IOP Conference Series: Materials Science and Engineering, 1033(1) (2021) 012050.
• S. Kumar, N. Gupta, S. Thakur and A. Singh, Study of Glass Forming Ability and Structural Rigidity of Zn Modified (GeTe)x(Sb2Te3)100-x Chalcogenide Glassy Alloys. Phase Transitions 93(1) (2020) 183-196.
• S. Sandhu, S. Kumar, R. Thangaraj, Study of aluminium-modified Ge2Sb2Te5 thin films for the applicability as phase-change storage device material. Phase Transitions 90(10) (2017) 1013-1024.
• S. Kumar, R. Thangaraj, Thickness-dependent optical and electrical properties of Ge8Sb2Te11 thin films. Phase transitions 90(2) (2017) 189-199.
• Sharanjit, Sandhu, D. Singh, S. Kumar, and R. Thangaraj. Phase analysis of aluminium modified GeSbTe bulk prepared from XRD of samples. AIP Conference Proceedings 1728(1) (2016) 020334 1-3.
• S. Sandhu, D. Singh, S. Kumar, R. Thangaraj, Investigation of Resonant Bonding in Al modified Ge2Sb2Te5 thin films. Chalcogenide letters 12(12) (2015) 705-711, 2015.
• S. Kumar, D. Singh, S. Sandhu, R. Thangaraj, Characterization of silver photodiffusion in Ge8Sb2Te11 thin films. AIP Conference Proceeding 1665 (2015) 080021 1-3.
• S. Sandhu, D. Singh, S. Kumar, R. Thangaraj, Effect of aluminium addition on crystallization activation energy of GeSbTe thin films. Journal of Ovonic Research 10(1) (2014) 1-5.
• D. Singh, S. Kumar, S. Sandhu, R. Thangaraj, Optical properties of (Se80Te20)100-xAg (0? x?4) thin films. AIP Conference Proceeding 1591 (2014) 1435-1436.
• D. Singh, S. Kumar, R. Thangaraj, Optical properties of polyvinyl alcohol doped (Se80Te20)100–xAgx (0≤x≤4) composites. Phase Transitions 87(2014) 206-222.
• D. Singh, S. Kumar, R. Thangaraj, Electrical properties of MWCNT-composite (Se80Te20)100-xAgx (0≤x≤4) chalcogenide glasses. Phase Transitions 87(2014) 148-156.
• D. Singh, S. Kumar, R. Thangaraj “Effect of different substrate on optical properties of Se92Te4Ag4 films. Phase Transitions 87(2014) 19-28.
• S. Kumar, D. Singh, R. Thangaraj, Optical properties and phase transition in photodoped amorphous Ge-Sb-Te:Ag thin films. Thin solid films 540 (2013) 271-276.
• S. Kumar,D. Singh, R. Thangaraj,. Electronic structure and optical band gap of silver photo-diffused Ge2Sb2Te5 thin film Applied surface science 273 (2013) 437-443.
• S. Sandhu, D. Singh, S. Kumar, R. Thangaraj, Estimation of glass transition of Alx(Ge2Sb2Te5)1-x glassy system. Journal of Ovonic Research 9 (2013) 143-146.
• D. Singh, S. Kumar, K. Anand, R. Thangaraj, Composition dependence of the optical constants of amorphous (Se80Te20)100-xAgx (0≤ x ≤ 4) films. Physica Status Solidi A 210 (2013) 2128-2134.
  20. S. Kumar,D. Singh, R. Thangaraj, Structural, Electrical and Optical study of thermally evaporated Ge8Sb2Te11 thin films. Thin solid films 531 (2013) 577-582.
• D. Singh, S. Kumar, R. Thangaraj, T.S. Sathiaraj, Transient photoconductivity in a-(Se80Te20)100-xAgx(0?x?4) thin ?lms. Progress in Natural Science: Materials International 22 (2012) 386–391.
• D. Singh, S. Kumar, R. Thangaraj, T.S. Sathiaraj, Influence of thickness on optical properties of a-(Se80Te20)96Ag4 thin films. Physica B 408 (2013) 119–125.
• K. Anand, D. Singh, S. Kumar, R. Thangaraj, Preparation and Characterization of Eu3+ Doped In2O3 Nanoparticles. AIP Conference Proceeding 1512 (2013) 448-449.
• D. Singh, S. Kumar, R. Thangaraj, Optical and electrical properties of as-prepared and annealed (Se80Te20)100−xAgx (0 ≤ x ≤ 4) ultra-thin films. Journal of Non-Crystalline Solids 358 (2012) 2826–2834.
• S. Kumar,D. Singh, S. Sandhu, R. Thangaraj, Structural, electrical and optical properties of thermally evaporated GT, GST and ST thin films. Physica status solidi (a)-applications and materials science 209 (2012) 2014–2019.
• S. Kumar,D. Singh, S. Sandhu, R. Thangaraj, Chemical states and optical properties of thermally evaporated Ge-Te and Ge-Sb-Te amorphous films. Applied Surface Science 258(2012) 7406-7411.
• S. Kumar,D. Singh, S. Sandhu, R. Thangaraj, Characterization of phase transition in silver photo-diffused thin Ge2Sb2Te5 films. Vacuum 86 (2012) 1443-1447.
• S. Kumar,D. Singh, S. Sandhu, R. Thangaraj, Structure and Crystallization Study of Phase Change Thin Ge-Sb-Te Films. AIP Conference Proceeding 1451 (2012) 172-173.
• S. Kumar, D. Singh and R. Thangaraj, XPS study of thermally evaporated Ge-Sb-Te amorphous thin films. AIP Conference Proceeding 1393 (2011) 141-142.
• S. Kumar, D. Singh, R. Thangaraj, Structural transformations in silver photodoped Ge-Sb-Te films. Optoelectronics and Advanced Materials-Rapid Communications 5 (2011) 920-923.
• D. Singh, S. Kumar, S. Kaur, R. Thangaraj, Effect of Ag additive on the photoconductive properties of (Se80Te20)100-xAgx (1< x< 4) thin films. European Physical Journal- Applied Physics 55 (2011) 30301 1-6.
• S. Kumar, D. Singh, R. Thangaraj, Structural study of silver photodoped Ge-Sb-Te thin films. Chalcogenide Letters 8 (2011) 355-361.
• D. Singh, S. Kumar, R. Thangaraj, Study of the physical properties with compositional dependence in (Se70Ge30)100-xBix (0<x< 8) glassy semiconductors. Advances in Applied Science Research 2 (2011) 20-29.
• D. Singh, S. Kumar, R. Thangaraj, Specific heat and related thermodynamic properties of (Se80Te20)100−xAgx (1 <x <4) glasses. European Physical Journal- Applied Physics 53 (2011) 20302-20307.
• S. Kumar, D. Singh, R. Thangaraj, Structure of Photodiffused Ge-Sb-Te:Ag Amorphous Film. AIP Conference Proceeding 1349 (2011) 711-712.
• D. Singh, S. Kumar, R. Thangaraj, Experimental and theoretical determination of physical parameters of (Se80Te20)100-xAgx (0<x<4) glassy alloys. Journal of Optoelectronics and Advanced Materials 12 (2010) 1505-1514.
• D. Singh, S. Kumar, R. Thangaraj, Study of crystallization rate constant of (Se80Te20)100−xAgx chalcogenide glasses. European Physical Journal- Applied Physics 52 (2010) 20303 1-7.
• D. Singh, S. Kumar, R. Thangaraj, Structural study of (Se80Te20)100-xAgx bulk samples using XRD spectra: Applicability of Piloyan–Borchardt method. Journal of Optoelectronics and Advanced Materials 12 (2010) 2242-2246.
• D. Singh, S. Kumar, R. Thangaraj, Calorimetric studies of (Se80Te20)100-xAgx bulk samples. Journal of Optoelectronics and Advanced Materials 12 (2010) 1706 –1713.