Research Output 1992 2020

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2011
27 Citations (Scopus)

Free volume related fluorescent behavior in electron beam irradiated chalcone doped PVA

Ravindrachary, V., Ismayil, Nayak, S. P., Dutta, D. & Pujari, P. K., 01-09-2011, In : Polymer Degradation and Stability. 96, 9, p. 1676-1686 11 p.

Research output: Contribution to journalArticle

Chalcone
Free volume
Crosslinking
Electron beams
crosslinking
2 Citations (Scopus)

Magnetic and thermal behavior of Ru 0.9Sr 2YCu 2.1O 7.9 magneto-superconductor synthesized by high-pressure high-temperature technique

Kumar, A., Gahtori, B., Rao, A., Kuo, Y. K., Shahnawaz, Awana, V. P. S. & Tandon, R. P., 01-07-2011, In : Journal of Superconductivity and Novel Magnetism. 24, 5, p. 1643-1648 6 p.

Research output: Contribution to journalArticle

Superconductivity
Superconducting materials
superconductivity
frequency modulation
Specific heat
4 Citations (Scopus)

Magneto-resistance, thermal conductivity, thermo-electric power and specific heat of superconductor Gd0.95Pr0.05Ba 2Cu2.94M0.06O7-δ (M=Fe, Ni, Zn and Mn)

Chakraborty, T., Gahtori, B., Soni, A., Okram, G. S., Agrawal, S. K., Chen, S. Y., Kuo, Y. K., Ahsan, M. A. H. & Rao, A., 01-09-2011, In : Solid State Communications. 151, 17, p. 1117-1121 5 p.

Research output: Contribution to journalArticle

Thermoelectric power
Magnetoresistance
electric power
Superconducting materials
Specific heat
4 Citations (Scopus)
Electron beams
Polystyrenes
polystyrene
Silver
silver
14 Citations (Scopus)
Photoacoustic spectroscopy
photoacoustic spectroscopy
Support vector machines
principal components analysis
Principal component analysis
10 Citations (Scopus)

Photoconductivity and photo-detecting properties of vacuum deposited ZnSe thin films

Gowrish Rao, K., Bangera, K. V. & Shivakumar, G. K., 01-11-2011, In : Solid State Sciences. 13, 11, p. 1921-1925 5 p.

Research output: Contribution to journalArticle

zinc selenides
Photoconductivity
photoconductivity
Zinc
Vacuum
8 Citations (Scopus)

Raman spectroscopy and conductivity variation of nanocluster carbon thin films grown using a room temperature based cathodic arc process

De, S., Niranjana, S., Satyanarayana, B. S. & Mohan Rao, K., 2011, In : Scientia Iranica. 18, 3 F, p. 797-803 7 p.

Research output: Contribution to journalArticle

Nanoclusters
Carbon films
Raman spectroscopy
Thin films
Graphite
11 Citations (Scopus)

Studies on vacuum deposited p-ZnTe/n-CdTe heterojunction diodes

Rao, G. K., Bangera, K. V. & Shivakumar, G. K., 01-02-2011, In : Solid-State Electronics. 56, 1, p. 100-103 4 p.

Research output: Contribution to journalArticle

Heterojunctions
heterojunctions
Diodes
diodes
Vacuum
31 Citations (Scopus)

Synthesis and applications of main-chain Ru(ii) metallo-polymers containing bis-terpyridyl ligands with various benzodiazole cores for solar cells

Padhy, H., Sahu, D., Chiang, I. H., Patra, D., Kekuda, D., Chu, C. W. & Lin, H. C., 28-01-2011, In : Journal of Materials Chemistry. 21, 4, p. 1196-1205 10 p.

Research output: Contribution to journalArticle

Solar cells
Polymers
Ligands
Butyric Acid
Butyric acid
18 Citations (Scopus)

The effect of solvent induced crystallinity of polymer layer on poly(3-hexylthiophene)/C70 bilayer solar cells

Kekuda, D., Lin, H. S., Chyi Wu, M., Huang, J. S., Ho, K. C. & Chu, C. W., 01-02-2011, In : Solar Energy Materials and Solar Cells. 95, 2, p. 419-422 4 p.

Research output: Contribution to journalArticle

Solar cells
Polymers
Boiling point
Excitons
Sun
2010
29 Citations (Scopus)

3,3′-Benzene-1,4-diylbis[1-(substituted)phenylprop-2-en-1-one] derivatives: A new class of materials for third-order nonlinear optical applications

Poornesh, P., Ravi, K., Umesh, G., Hegde, P. K., Manjunatha, M. G., Manjunatha, K. B. & Adhikari, A. V., 01-04-2010, In : Optics Communications. 283, 7, p. 1519-1527 9 p.

Research output: Contribution to journalArticle

Benzene
Photons
benzene
Derivatives
photons
31 Citations (Scopus)

Correlation between exciton lifetime distribution and morphology of bulk heterojunction films after solvent annealing

Huang, J. H., Li, K. C., Chien, F. C., Hsiao, Y. S., Kekuda, D., Chen, P., Lin, H. C., Ho, K. C. & Chu, C. W., 20-05-2010, In : Journal of Physical Chemistry C. 114, 19, p. 9062-9069 8 p.

Research output: Contribution to journalArticle

Excitons
Heterojunctions
heterojunctions
Polymers
Butyric acid
9 Citations (Scopus)

Dibenzo[f,h]thieno[3,4-b] quinoxalinefullerene heterojunction bilayer solar cells with complementary spectrum coverage

Kekuda, D., Huang, J. S., Velusamy, M., Lin, J. T. & Chu, C. W., 01-10-2010, In : Solar Energy Materials and Solar Cells. 94, 10, p. 1767-1771 5 p.

Research output: Contribution to journalArticle

Heterojunctions
Solar cells
Quinoxalines
Molecules
Fullerenes
11 Citations (Scopus)

Doped Pr0.7-xBixSr0.3MnO3 manganite: A structural, electrical and magnetic effect

Kumar, N., Kishan, H., Rao, A. & Awana, V. P. S., 20-08-2010, In : Journal of Alloys and Compounds. 504, 2

Research output: Contribution to journalArticle

Superconducting transition temperature
Ions
Exchange interactions
Magnetic variables measurement
Heavy ions
1 Citation (Scopus)

Effect of Mn substitution on the thermo-power of the superconductor Mg 1-xMnxB2

Rao, A., Chakraborty, T., Gahtori, B., Sarkar, C., Agarwal, S. K., Soni, A. & Okram, S., 01-01-2010, In : Journal of Physics: Conference Series. 234, PART 1, 012033.

Research output: Contribution to journalArticle

substitutes
communication
slopes
trends
38 Citations (Scopus)

Efficient bilayer polymer solar cells possessing planar mixed-heterojunction structures

Huang, J. H., Li, K. C., Kekuda, D., Padhy, H. H., Lin, H. C., Ho, K. C. & Chu, C. W., 09-04-2010, In : Journal of Materials Chemistry. 20, 16, p. 3295-3300 6 p.

Research output: Contribution to journalArticle

Heterojunctions
Annealing
Fullerenes
Open circuit voltage
Quantum efficiency
4 Citations (Scopus)

Electrical and thermal properties of bulk superconductors Eu0.95Pr0.05Ba2(Cu1-xMx)3O7-δ (M = Fe, Ni, Zn and Mn)

Chakraborty, T., Gahtori, B., Soni, A., Okram, G. S., Agarwal, S. K., Chen, Y. S., Kuo, Y. K., Geetha, Rao, A. & Sarkar, C. K., 01-02-2010, In : Physica C: Superconductivity and its Applications. 470, 3, p. 244-249 6 p.

Research output: Contribution to journalArticle

Superconducting materials
Superconducting transition temperature
Electric properties
Thermodynamic properties
thermodynamic properties
31 Citations (Scopus)

Enhanced spectral response in polymer bulk heterojunction solar cells by using active materials with complementary spectra

Huang, J. H., Lee, C. P., Ho, Z. Y., Kekuda, D., Chu, C. W. & Ho, K. C., 01-01-2010, In : Solar Energy Materials and Solar Cells. 94, 1, p. 22-28 7 p.

Research output: Contribution to journalArticle

Heterojunctions
Solar cells
Polymers
Fullerenes
Butyric acid
41 Citations (Scopus)

Fe ion doping effect on electrical and magnetic properties of La 0.7Ca0.3Mn1-xFexO3 (0 ≤ x ≤ 1)

Kumar, N., Kishan, H., Rao, A. & Awana, V. P. S., 23-07-2010, In : Journal of Alloys and Compounds. 502, 2, p. 283-288 6 p.

Research output: Contribution to journalArticle

Magnetic properties
Electric properties
Doping (additives)
Ions
Polarons
37 Citations (Scopus)

Growth, structural and optical properties of CdxZn1-xS thin films deposited using spray pyrolysis technique

Raviprakash, Y., Bangera, K. V. & Shivakumar, G. K., 01-01-2010, In : Current Applied Physics. 10, 1, p. 193-198 6 p.

Research output: Contribution to journalArticle

Spray pyrolysis
pyrolysis
sprayers
Structural properties
Optical properties
5 Citations (Scopus)

Hybrid TiOx/fluoropolymer bi-layer dielectrics for low-voltage complementary inverters

Sung, C. F., Kekuda, D., Chu, L. F., Chen, F. C., Cheng, S. S., Lee, Y. Z., Wu, M. C. & Chu, C. W., 01-01-2010, In : Organic Electronics: physics, materials, applications. 11, 1, p. 154-158 5 p.

Research output: Contribution to journalArticle

fluoropolymers
Fluorine containing polymers
inverters
Gate dielectrics
low voltage
4 Citations (Scopus)

Introduction to Quark-Gluon plasma

Ranjan, A. & Ravishankar, V., 01-2010, In : Indian Journal of Physics. 84, 1, p. 11-40 30 p.

Research output: Contribution to journalArticle

quarks
Landau damping
damping
signatures
physics
20 Citations (Scopus)

Investigation of third-order nonlinear optical properties of conjugated benzodioxal derivatives

Shettigar, S., Poornesh, P., Umesh, G., Sarojini, B. K., Narayana, B. & Prakash Kamath, K., 01-10-2010, In : Optics and Laser Technology. 42, 7, p. 1162-1166 5 p.

Research output: Contribution to journalArticle

Optical properties
Derivatives
optical properties
Molecules
molecules
28 Citations (Scopus)

Label-free detection of DNA using novel organic-based electrolyte-insulator-semiconductor

Lin, T. W., Kekuda, D. & Chu, C. W., 01-08-2010, In : Biosensors and Bioelectronics. 25, 12, p. 2706-2710 5 p.

Research output: Contribution to journalArticle

Semiconductors
Electrolytes
Labels
DNA
Semiconductor materials
38 Citations (Scopus)

Modulation of donor-acceptor interface through thermal treatment for efficient bilayer organic solar cells

Kekuda, D., Huang, J. H., Ho, K. C. & Chu, C. W., 18-02-2010, In : Journal of Physical Chemistry C. 114, 6, p. 2764-2768 5 p.

Research output: Contribution to journalArticle

Conversion efficiency
solar cells
Heat treatment
Modulation
modulation
56 Citations (Scopus)

Nonlinear optical and optical power limiting studies on a new thiophene-based conjugated polymer in solution and solid PMMA matrix

Poornesh, P., Hegde, P. K., Umesh, G., Manjunatha, M. G., Manjunatha, K. B. & Adhikari, A. V., 01-02-2010, In : Optics and Laser Technology. 42, 1, p. 230-236 7 p.

Research output: Contribution to journalArticle

Methylmethacrylate
Thiophenes
Conjugated polymers
Thiophene
thiophenes
41 Citations (Scopus)

Optical and microstructural studies on electron irradiated PMMA: A positron annihilation study

Ismayil, Ravindrachary, V., Bhajantri, R. F., Praveena, S. D., Poojary, B., Dutta, D. & Pujari, P. K., 01-06-2010, In : Polymer Degradation and Stability. 95, 6, p. 1083-1091 9 p.

Research output: Contribution to journalArticle

Positron annihilation
Electron irradiation
Free volume
Polymethyl Methacrylate
positron annihilation
41 Citations (Scopus)

Structural, electrical, magnetic, and thermal studies of Cr-doped La 0.7 Ca0.3 Mn1-x CrxO3 (0≤x≤1) manganites

Kumar, N., Kishan, H., Rao, A. & Awana, V. P. S., 15-04-2010, In : Journal of Applied Physics. 107, 8, 083905.

Research output: Contribution to journalArticle

frequency modulation
spin glass
heat
magnetic spectroscopy
transition temperature
14 Citations (Scopus)

Structural, electrical and thermal studies of Nb-doped Pr0.7 Sr0.3 Mn1 - x Nbx O3 (0 ≤ x ≤ 0.05) manganites

Agarwal, S. K., Kumar, N., Panwar, N., Gahtori, B., Rao, A., Chang, P. C. & Kuo, Y. K., 01-04-2010, In : Solid State Communications. 150, 13-14, p. 684-688 5 p.

Research output: Contribution to journalArticle

Manganites
Doping (additives)
electrical resistivity
Thermoelectric power
Specific heat
19 Citations (Scopus)

Studies on the photoconductivity of vacuum deposited ZnTe thin films

Rao, G. K., Bangera, K. V. & Shivakumar, G. K., 01-10-2010, In : Materials Research Bulletin. 45, 10, p. 1357-1360 4 p.

Research output: Contribution to journalArticle

zinc tellurides
Photoconductivity
photoconductivity
Zinc
Vacuum
8 Citations (Scopus)

Studies on vacuum deposited p-ZnTe/n-ZnSe heterojunction diodes

Rao, G. K., Bangera, K. V. & Shivakumar, G. K., 01-08-2010, In : Solid-State Electronics. 54, 8, p. 787-790 4 p.

Research output: Contribution to journalArticle

Heterojunctions
heterojunctions
Diodes
diodes
Vacuum
32 Citations (Scopus)

Synthesis and application of H-Bonded cross-linking polymers containing a conjugated pyridyl H-Acceptor side-chain polymer and various carbazole-based H-Donor dyes bearing symmetrical cyanoacrylic acids for organic solar cells

Sahu, D., Padhy, H., Patra, D., Kekuda, D., Chu, C. W., Chiang, I. H. & Lin, H. C., 10-12-2010, In : Polymer. 51, 26, p. 6182-6192 11 p.

Research output: Contribution to journalArticle

Bearings (structural)
Polymers
Coloring Agents
Dyes
Hydrogen
35 Citations (Scopus)

Synthesis and applications of 2,7-carbazole-based conjugated main-chain copolymers containing electron deficient bithiazole units for organic solar cells

Patra, D., Sahu, D., Padhy, H., Kekuda, D., Chu, C. W. & Lin, H. C., 01-12-2010, In : Journal of Polymer Science, Part A: Polymer Chemistry. 48, 23, p. 5479-5489 11 p.

Research output: Contribution to journalArticle

Copolymers
Butyric acid
Butyric Acid
Electrons
Esters
59 Citations (Scopus)

Synthesis and applications of low-bandgap conjugated polymers containing phenothiazine donor and various benzodiazole acceptors for polymer solar cells

Padhy, H., Huang, J. H., Sahu, D., Patra, D., Kekuda, D., Chu, C. W. & Lin, H. C., 01-11-2010, In : Journal of Polymer Science, Part A: Polymer Chemistry. 48, 21, p. 4823-4834 12 p.

Research output: Contribution to journalArticle

Conjugated polymers
Polymers
Energy gap
Butyric acid
Electron energy levels
63 Citations (Scopus)

Synthesis and characterization of a narrow-bandgap polymer containing alternating cyclopentadithiophene and diketo-pyrrolo-pyrrole units for solar cell applications

Chen, G. Y., Chiang, C. M., Kekuda, D., Lan, S. C., Chu, C. W. & Wei, K. H., 01-04-2010, In : Journal of Polymer Science, Part A: Polymer Chemistry. 48, 7, p. 1669-1675 7 p.

Research output: Contribution to journalArticle

Pyrroles
Solar cells
Polymers
Energy gap
Conjugated polymers
4 Citations (Scopus)
zinc tellurides
Bismuth
bismuth
Zinc
Doping (additives)
3 Citations (Scopus)

Thermal conductivity and thermo-power of Y1 - x Prx Ba2 (Cu1 - x Mx)3 O7 - δ (M = Fe,Mn,Zn and Ni) bulk superconductors

Chakraborty, T., Gahtori, B., Ahsan, M. A. H., Geetha, Chen, Y. S., Kuo, Y. K., Rao, A., Sarkar, C. K. & Agrawal, S. K., 01-03-2010, In : Solid State Communications. 150, 9-10, p. 454-457 4 p.

Research output: Contribution to journalArticle

Superconducting materials
Thermal conductivity
thermal conductivity
Doping (additives)
Phonon scattering
22 Citations (Scopus)

Thermal properties of La2/3Ba1/3(Mn1-xSbx)O3 manganites

Sen, V., Bhalla, G. L., Panwar, N., Syu, W. K., Kaurav, N., Kuo, Y. K., Rao, A. & Agarwal, S. K., 01-01-2010, In : Physica B: Condensed Matter. 405, 1, p. 1-4 4 p.

Research output: Contribution to journalArticle

Manganites
Thermodynamic properties
thermodynamic properties
Doping (additives)
thermal conductivity
9 Citations (Scopus)

Variation of radiation level and radionuclide enrichment in high background area

Shetty, P. K. & Narayana, Y., 01-12-2010, In : Journal of Environmental Radioactivity. 101, 12, p. 1043-1047 5 p.

Research output: Contribution to journalArticle

Radioisotopes
radionuclide
Radiation
Gamma Rays
Beaches
2009
81 Citations (Scopus)

Annealing effect of polymer bulk heterojunction solar cells based on polyfluorene and fullerene blend

Huang, J. H., Yang, C. Y., Ho, Z. Y., Kekuda, D., Wu, M. C., Chien, F. C., Chen, P., Chu, C. W. & Ho, K. C., 01-02-2009, In : Organic Electronics: physics, materials, applications. 10, 1, p. 27-33 7 p.

Research output: Contribution to journalArticle

Fullerenes
fullerenes
Heterojunctions
heterojunctions
Solar cells
25 Citations (Scopus)

Autofluorescence of normal, Benign, and malignant ovarian tissues: A pilot study

Kamath, S. D., Bhat, R. A., Ray, S. & Mahato, K. K., 01-04-2009, In : Photomedicine and Laser Surgery. 27, 2, p. 325-335 11 p.

Research output: Contribution to journalArticle

Tissue
Lasers
Laser excitation
Principal Component Analysis
Pulsed lasers
12 Citations (Scopus)

Characterization of p-CdTe/n-CdS hetero-junctions

Mahesha, M. G., Bangera, K. V. & Shivakumar, G. K., 06-2009, In : Materials Science in Semiconductor Processing. 12, 3, p. 89-93 5 p.

Research output: Contribution to journalArticle

Cadmium telluride
Cadmium sulfide
Thermal evaporation
Energy gap
Crystalline materials
50 Citations (Scopus)

Effects of nanomorphological changes on the performance of solar cells with blends of poly[9,9′-dioctyl-fluorene-co-bithiophene] and a soluble fullerene

Huang, J. H., Ho, Z. Y., Kekuda, D., Chang, Y., Chu, C. W. & Ho, K. C., 14-01-2009, In : Nanotechnology. 20, 2, 025202.

Research output: Contribution to journalArticle

Fullerenes
Solar cells
Butyric acid
Esters
Butyric Acid
14 Citations (Scopus)

Efficient bulk heterjunction solar cells based on a low-bandgap polyfluorene copolymers and fullerene derivatives

Huang, J. H., Li, K. C., Wei, H. Y., Chen, P. Y., Lin, L. Y., Kekuda, D., Lin, H. C., Ho, K. C. & Chu, C. W., 01-09-2009, In : Organic Electronics: physics, materials, applications. 10, 6, p. 1109-1115 7 p.

Research output: Contribution to journalArticle

Fullerenes
fullerenes
copolymers
Solar cells
Polymers
10 Citations (Scopus)
Polystyrenes
Silver
polystyrene
silver
Polymers
85 Citations (Scopus)

Electrochemical characterization of the solvent-enhanced conductivity of poly(3,4-ethylenedioxythiophene) and its application in polymer solar cells

Huang, J. H., Kekuda, D., Chu, C. W. & Ho, K. C., 08-06-2009, In : Journal of Materials Chemistry. 19, 22, p. 3704-3712 9 p.

Research output: Contribution to journalArticle

Polymers
Thin films
Conductive films
Buffer layers
Dimethyl Sulfoxide
10 Citations (Scopus)

Enhanced superconducting properties of bulk MgB2 prepared by in situ Powder-In-Sealed-Tube method

Varghese, N., Vinod, K., Rao, A., Kuo, Y. K. & Syamaprasad, U., 20-02-2009, In : Journal of Alloys and Compounds. 470, 1-2, p. 63-66 4 p.

Research output: Contribution to journalArticle

Powders
Flux pinning
Sintering
Temperature
Grain boundaries
50 Citations (Scopus)

Fabrication of multilayer organic solar cells through a stamping technique

Huang, J. H., Ho, Z. Y., Kuo, T. H., Kekuda, D., Chu, C. W. & Ho, K. C., 19-06-2009, In : Journal of Materials Chemistry. 19, 24, p. 4077-4080 4 p.

Research output: Contribution to journalArticle

Stamping
Polymer films
Multilayers
Fabrication
Conversion efficiency
47 Citations (Scopus)

Flexible fullerene field-Effect transistors fabricated through solution processing

Sung, C. F., Kekuda, D., Chu, L. F., Lee, Y. Z., Chen, F. C., Wu, M. C. & Chu, C. W., 18-12-2009, In : Advanced Materials. 21, 47, p. 4845-4849 5 p.

Research output: Contribution to journalArticle

Fullerenes
Thin film transistors
Field effect transistors
ITO glass
Vacuum deposition
8 Citations (Scopus)

Low temperature specific heat (zero field and with field) of Fe and Mn-doped MgB2

Rao, A., Gahtori, B., Agarwal, S. K., Chakraborty, T., Sarkar, C. K. & Das, A., 01-01-2009, In : Physica C: Superconductivity and its Applications. 469, 1, p. 64-69 6 p.

Research output: Contribution to journalArticle

Specific heat
Thermal variables measurement
specific heat
heat measurement
Magnetoresistance