Systèmes moléculaires pour applications électroniques, électro-optiques et énergétiques

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Articles in Journals: 71

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1. A. Kumar, D. P. Singh and G. Singh: Recent progress and future perspectives on carbon nanomaterials dispersed liquid crystals composites, J. Phys. D:Appl. Phys., 55 (2022) 083002.

2. S.K. Gupta, D. Budaszewski and D. P. Singh: Ferroelectric Liquid Crystals: Futuristic Mesogens for Photonic Applications, EPJ ST, (2021) Accepted. (Invited Paper)

3. B. P. Singh, S. Sikarwar, K. K. Pandey, R. Manohar, M. Depriester and D. P. Singh: Carbon Nanotubes Blended Nematic Liquid Crystal For Display and Electro-optical Applications, Electronic Materials, 2(4) (2021) 466-481. (Invited Paper)

4. M. Vadivel, S. Singh, D. P. Singh, V.A. Raghunathan, and S. Kumar: Ambipolar Charge Transport Properties of Novel Naphthophenanthridine Discotic Liquid Crystals, Journal of Physical Chemistry B, 125 (36) (2021) 10364.

5. A. Shah, D. P. Singh, B. Duponchel, F. Krasisnski, A. Daoudi, S. Kumar, R. Douali: Molecular ordering dependent charge transport in π-stacked triphenylene based discotic liquid crystals and its correlation with dielectric properties, Journal of Molecular Liquids, 342 (2021) 117353.

6. N. Radouane, M. Depriester, A. Hadj Sahraoui, B. Ouaki, B. Escorne, B. Duponchel, D. P. Singh, and A. Maaroufi: Thermoelectric improvement of the figure of merit of zinc phosphate glass composites by a likely tunnel percolation mechanism, J. Appl. Phys. 129 (2021) 155110.

7. B. P. Singh, C.-Y. Huang, D. P. Singh, P. Palani, B. Duponchel, M. Sah, R. Manohar, K. K. Pandey: The scientific duo of TiO2 nanoparticles and nematic liquid crystal E204: Increased absorbance, Photoluminescence Quenching and improving response time for electro-optical devices, Journal of Molecular Liquids 325 (2021) 115130.

8. J. De, M. Devi, S. P. Gupta, A. Shah, I. Bala, D. P. Singh, R. Douali, and S. K. Pal: Luminescent Conductive π-Driven Supergelator with Columnar Self-assembly Based on Triazole Modified Phenylene-Vinylene Derivative for Metal Sensing and Bio-Imaging, Journal of Physical Chemistry B,124 (45) (2020) 10257–10265.

9. I. Bala, N. Singh, R. A. K. Yadav, J. De, S. P. Gupta, D. P. Singh, D. K. Dubey, J-H Jou, R. Douali, and S. K. Pal: Room Temperature Perylene Based Columnar Liquid Crystals as Solid-State Fluorescent Emitters in Solution-Processable Organic Light-Emitting Diodes, J. Mater. Chem. C, 8 (2020) 12485-12494.

10. A. Shah, B. Duponchel, A. Gowda, S. Kumar, C. Legrand, R. Douali, and D. P. Singh: Charge transport in phenazine-fused triphenylene discotic mesogens doped with CdS nanowires and their current-voltage characteristics for ITO-DLC-Au heterojunction, New Journal of Chemistry, 44 (2020) 14872.

11. A. Shah, M. S. Sannaikar, S. R. Inamdar, R. Douali and D. P. Singh: Photoluminescence modulation in the graphene oxide dispersed 4-n-octyl-4'-cyanobiphenyl molecular system, J. of Luminescence 226 (2020) 117509.

12. P. Mahesh, A. Shah, K. Swamynathan, D. P. Singh, R. Douali, and S. Kumar: Carbon dots dispersed hexabutyloxytriphenylene discotic mesogens: Structural, morphological and charge transport behavior, J. Mater. Chem. C, 8 (2020) 9252-9261.

13. D. P. Singh, B. Duponchel, Y. Boussoualem, G. H. Pujar, S. R. Inamdar, R. Douali and A. Daoudi: Phase transition, fluorescence quenching and geometrical deformation in ferroelectric smectic C* matrix by Cd0:15Zn0:85S/ZnS core/shell quantum dots: Ultra-fast electro optic response for gizmos display application,  Liquid Crystals 47 (11) (2020) 1638-1654.

14. D. P. Singh, A. K. Misra, K. K. Pandey, B. Pal, N. Kumar, D. Singh, K. Kondratenko, B. Duponchel, P. Genevray, and R. Douali: Spectroscopic, dielectric and nonlinear current-voltage characterization of a hydrogen-bonded liquid crystalline compound influenced via graphitic nanoflakes: An equilibrium between the experimental and theoretical studies, Journal of Molecular Liquids 302 (2020) 112537.

15. N. Radouane, A.-k. Maaroufi, B. Ouaki, C. Poupin, R. Cousin, B. Duponchel, D. P. Singh, A. H. Sahraoui, M. Depriester, Electrical and thermal characterization of zinc phosphate glass filled with synthetic graphite, Journal of Non-crystalline Solids, 536 (2020) 119989.

16. K. Kondratenko, Y. Boussoualem, D. P. Singh, R. Visvanathan, A. E. Duncan, N.A. Clark, C. Legrand and A. Daoudi: Molecular p-doping in organic liquid crystalline semiconductor: Influence of the charge transfer complex on the properties of mesophase and bulk charge transport, Physical Chemistry Chemical Physics, 21 (2019) 18686-18698.

17. I. Bala, W.-Y. Yang, S. P. Gupta, J. De, R. A. K. Yadav, D. P. Singh, D. K. Dubey, J.-H. Jou, R. Douali and S. K. Pal: Room temperature Discotic Liquid Crystalline Triphenylene-Pentalkynylbenzene dyads as an emitter in blue OLEDs and their Charge transfer complexes with ambipolar charge transport behaviour, J. Mater. Chem. C, 7 (2019) 5724-5738.

18. D. P. Singh, B. Duponchel, Y. Lin, J.-F. Blach, H. Khemakhem C. Legrand, and R. Douali: Orientation of 4-n-octyl-4'-cyanobiphenyl molecules on graphene oxide surface via electron-phonon coupling, J. Mater. Chem. C, 7 (2019) 2734-2743.

19. D. P. Singh, A. K. Misra, A. S. Achalkumar, C. V. Yelamaggad and M. Depriester: Transmuting the blue emission of hekates mesogens by quantum dot dispersion, J. of Luminescence, 210 (2019) 7-13.

20. E. Bsaibess, A. Hadj Sahraoui, Y. Boussoualem, M. Soueidan, B. Duponchel, D.P. Singh, B. Nsouli, A. Daoudi, and S. Longuemart: Study of the electrocaloric effect in ferroelectric liquid crystals, Liquid Crystals, 46 (10) (2019) 1517-1526.

21. K. Kondratenko, D. P. Singh, Y. Boussoualem, R. Douali, C. Legrand, A. Daoudi, Hole transporting properties of Discotic liquid-crystalline semiconductor confined in calamitic UV-crosslinked gel, Journal of Molecular Liquids 276 (2019) 27–31.

22. R. Singh, D. P. Singh, P. Gupta, P. Jain, Sanchita, T. Mishra, A. Kumar, Sunita Singh Dhawan, P. A. Shirke, Nanoparticles alter the withanolide biosynthesis and carbohydrate metabolism in Withania somnifera (Dunal), Industrial Crops and Products 127 (2019) 94–109.

23. D. P. Singh, K. Agrahari, A. S. Achalkumar, C. V. Yelamaggad, R. Manohar and M. Depriester: Preparation and photophysical properties of soft-nano composites comprising guest anatase TiO2 nanoparticle and host hekates discotic mesogens, J. of Luminescence 205 (2019) 304–309.

24. D. P. Singh, R. Visvanathan, A. E. Duncan, B. Duponchel, Y. Boussoualem, S. Kumar, N. A. Clark, Jean-François Blach, R. Douali and A. Daoudi: CdSe quantum dots in chiral smectic C matrix: Experimental evidence of smectic layer distortion by small and wide angle X-ray scattering and subsequent effect on electro-optical parameters,  Liquid Crystals,  46 (3) (2019) 376-385.

25. D. P. Singh, B. Duponchel, Y. Boussoualem, K. Agrahari, R. Manohar,  V. Kumar, Renu Pasricha, G. H. Pujar, S. R. Inamdar, R. Douali and A. Daoudi: Dual Photoluminescence and Charge Transport in alkoxy biphenyl benzoate ferroelectric liquid crystalline–Graphene Oxide Composite, New J. Chem., 42 (2018) 16682–16693.

26. A. Gowda, L. Jacob, D. P. Singh, R. Douali and S. Kumar: Charge Transport in Novel Phenazine Fused Triphenylene Supramolecular systems, ChemistrySelect, 3(23) (2018) 6551–6560.

27. D. P. Singh, T. Vimal, Y. J. Mange, M. C. Varia, T. Nann, K. K. Pandey, R. Manohar and R. Douali: CuInS2/ZnS QD-Ferroelectric liquid crystal mixtures for faster electro-optical devices and their energy storage aspects, Journal of Applied Physics 123 (2018) 034101.

28. A. Kumar, P. Kumar, D. P. Singh, B. Behera and S. L. Jain, A bridged Ruthenium dimer (Ru-Ru) for photoreduction of CO2 under visible light irradiation, Journal of Industrial and Engineering Chemistry, 61 (2018) 381–387.

29. T. Vimal, S. Pandey, S. K. Gupta, D. P. Singh, K. Agrahari, G. Pathak, R. Katiyar, P.   K. Tripathi and R. Manohar, Manifestation of strong magneto-electric dipolar coupling in ferromagnetic nanoparticles−FLC composite: Evaluation of time dependent memory effect, Liquid Crystals, 45 (5) (2018) 687–697.

30. D. P. Singh, Y. Boussoualem, B. Duponchel, A. H. Sahraoui, S. Kumar, R. Manohar and A. Daoudi : Corrigendum-Pico-ampere current sensitivity and CdSe quantum dots assembly assisted charge transport in ferroelectric liquid crystal,  J. Phys. D: Appl. Phys., 51 (2018) 469501.

31. D. P. Singh, Y. Boussoualem, B. Duponchel, A. H. Sahraoui, S. Kumar, R. Manohar and A. Daoudi : Pico-ampere current sensitivity and CdSe quantum dots assembly assisted charge transport in ferroelectric liquid crystal,  J. Phys. D: Appl. Phys., 50 (2017) 325301.

32. D. P. Singh, V. Kumar, A. Kumar, R. Manohar,  Renu Pasricha, B. Duponchel, Y. Boussoualem, A. H. Sahraoui and A. Daoudi : Effect of graphene oxide interlayer electron-phonon coupling on the electro-optical parameters of a ferroelectric liquid crystal, RSC Advances, 7 (2017) 12479–12485.

33. D. P. Singh, S. Pandey, R. Manohar, S. Kumar, G. H. Pujar and S. R. Inamdar: Time-Resolved Fluorescence and Absence of Förster Resonance Energy Transfer in Ferroelectric Liquid Crystal-Quantum Dots Composites, Journal of Luminescence  190 (2017) 161–170.

34. S. Pandey, D. P. Singh, K. Agrahari, A.Srivastava, M. Czerwinski, S. Kumar and R. Manohar: CdTe quantum dot dispersed ferroelectric liquid crystal: Transient memory with faster optical response and quenching of photoluminescence, Journal of Molecular Liquids 237 (2017) 71–80.

35. T. Vimal, S. Pandey, D. P. Singh, S. K. Gupta, K. Agrahari, P. Kumbhakar, A. K. Kole and R. Manohar: ZnS quantum dot induced phase transitional changes and enhanced ferroelectric mesophase in QDs/FLC composites, Physics and Chemistry of Solids 100 (2017) 134–142.

36. K. Agrahari, G. Pathak, R. Katiyar, G. Yadav, T. Vimal, S. Pandey, D. P. Singh, S. K. Gupta and R. Manohar: Effect of Cd1−xZnxS/ZnS core/shell quantum dot on the optical response and relaxation behaviour of ferroelectric liquid crystal, Molecular Crystal and Liquid Crystals 652 (2017) 195–205.

37. D. P. Singh, A. Daoudi, S. K. Gupta, S. Pandey, T. Vimal, R. Manohar, A. K. Kole, P. Kumbhakar and A. Kumar: Mn2+ doped ZnS quantum dots in ferroelectric liquid crystal matrix: Analysis of new relaxation phenomenon, faster optical response and concentration dependent quenching in photoluminescence, Journal of Applied Physics 119 (2016) 094101.

38. D. P. Singh, S. Pandey, S. K. Gupta, R. Manohar, A. Daoudi, A. H. Sahraoui, Chinmay Phadnis and S. Mahamuni: Quenching of photoluminescence and enhanced contrast of ferroelectric liquid crystal dispersed with Cd1-XZnXS/ZnS core/shell nanocrystals, Journal of Luminescence 173 (2016) 250–256.

39. S. K. Gupta, D. P. Singh and R. Manohar: Tuning phase retardation behaviour of nematic liquid crystal using quantum dot, Current Applied Physics 16 (2016) 79–82.

40. S. Pandey, T. Vimal, D. P. Singh, S. K. Gupta, G. Pathak, R. Katiyar and R. Manohar: Core/Shell Quantum Dots in Ferroelectric Liquid Crystals matrix: Effect of Spontaneous Polarization Coupling with Dopant, Liquid Crystals 43 (2016) 980–993.

41. D.P. Singh, T. Vimal, S. K. Gupta, P. Tripathi, M. C. Varia, S. Kumar, S. Manohar and R. Manohar: Tailoring of Cholesteric Plane Spacing, Dielectric Relaxation and Optical Properties of High Temperature Chiral Nematic Phase by UV Irradiation, Molecular Crystal and Liquid Crystals 625 (2016) 1–10.

42. T. Vimal, D. P. Singh, K. Agrahari, A. Srivastava and R. Manohar: Analysis of optical properties and mechanism of photoluminescence enhancement of quantum dots-ferroelectric liquid crystal composite, Photonics Letters of Poland 8(1) (2016) 23–25.

43. T. Vimal, D. P. Singh, S. K. Gupta, S. Pandey, K. Agrahari & R. Manohar: Thermal and optical study of semiconducting CNTs-doped nematic liquid crystalline material, Phase Transition 89 (2015) 632–642.

44. S. Pandey, D. P. Singh, A. Srivastava and R. Manohar: Analysis of faster optical response in core/shell nanocrystals ferroelectric liquid crystal composite, Photonics Letters of Poland 7(4) (2015) 97–99.

45. S. Pandey, T. Vimal, D. P. Singh, S. K. Gupta, S. Mahamuni, A. Srivastava and R. Manohar: Analysis of physical parameters and collective dielectric relaxations in core/shell quantum dot ferroelectric liquid crystal composite, Journal of Molecular Liquids 211 (2015) 157–163.

46. D.P. Singh, S. K. Gupta, S. Pandey, T. Vimal, P. Tripathi, M. C. Varia, S. Kumar, S. Manohar and R. Manohar: Influence of CdSe quantum dot on molecular/ionic relaxation phenomenon and change in physical parameters of ferroelectric liquid crystal, Liquid Crystals 42 (8) (2015) 1159–1168.

47. S. K. Gupta, D. P. Singh and R. Manohar: Electrical and polarization behaviour of titania nanoparticles doped ferroelectric liquid crystal, Advanced Materials Letters 6 (1) (2015) 68–72.

48. S. Pandey, S. K. Gupta, D. P. Singh, T. Vimal, P. K. Tripathi, A. Srivastava and R. Manohar: Effects of Polymer Doping on Dielectric and Electro-Optical Parameters of Nematic Liquid Crystal, Polymer Engineering and Science 55 (2) (2015) 414–420.

49. S. K. Gupta, S. Pandey, D.P. Singh, T. Vimal, S. Manohar and R. Manohar: Quantum Dot Doped Ferroelectric Liquid Crystal System: Investigation of Electro-Optical Parameters and Relaxation Behavior, Molecular Crystal and Liquid Crystals 610 (2015) 227–234.

50. T. Vimal, S. Pandey, S. K. Gupta, D. P. Singh and R. Manohar: Enhanced negative dielectric anisotropy and high electrical conductivity of the SWCNT doped nematic liquid crystalline material, Journal of Molecular Liquids 204 (2015) 21–26.

51. D. P. Singh, S. K. Gupta, T. Vimal and Rajiv Manohar: Dielectric, Electro-optical and Photoluminescence characteristics of ferroelectric liquid crystal on a grapheme-coated indium tin oxide substrate, Physical Review E 90 (2014) 022501.

52. D. P. Singh, S. K. Gupta, Rajiv Manohar, M. C. Varia, S. Kumar and A. Kumar: Effect of cadmium selenide quantum dots on the dielectric and physical parameters of ferroelectric liquid crystal, Journal of Applied Physics 116 (2014) 034106.

53. D. P. Singh, S. K. Gupta, S. Pandey, K. Singh and Rajiv Manohar: Electro-optical, UV absorbance and UV photoluminescence analysis of Se95In5 chalcogenide glass microparticle doped ferroelectric liquid crystal, Journal of Applied Physics 115 (2014) 214103.  

54. S. K. Gupta, D. P. Singh, and R. Manohar: Enhancement of Dielectric and Electro-Optical Properties in SWCNT Dispersed Ferroelectric Liquid Crystals, Ferroelectrics 468 (2014) 84–91.

55. S. Pandey, T. Vimal, D. P. Singh, S. K. Guptaa, P. Tripathi, C. Phadnis, S. Mahamuni, A. Srivastava and R. Manohar: Cd1-xZnxS/ZnS core/shell quantum dot ferroelectric liquid crystal composite system: analysis of faster optical response and lower operating voltage, Liquid Crystals 41 (12) (2014) 1811–1820.

56.  D. P. Singh, S. K. Gupta, T. Vimal and Rajiv Manohar: Formation of periodic domains and change in physical properties of paramagnetic copper doped ZnO nanoparticle dispersed ferroelectric liquid crystal system, Journal of Molecular Liquids 198 (2014) 267–273.

57.  D. P. Singh, S. K. Gupta, P. Tripathi, M.C. Varia, S. Kumar and R. Manohar: Reduction of ionic contaminations in CdSe quantum dot dispersed ferroelectric liquid crystal and its applications, Liquid Crystals 41 (9) (2014) 1356–1365.

58.  D. P. Singh, S. K. Gupta, S. P. Yadav, P. K. Sharma A. C. Pandey and Rajiv Manohar: Guest-Host interaction in ferroelectric liquid crystal-nanoparticle composite system, Bulletin of Materials Science, 37 (3) (2014) 511–518.

59.  D. P. Singh, S. K. Gupta, A. Srivastava and Rajiv Manohar: The Phenomenon of Induced Photoluminescence in Ferroelectric Mesophase, Journal of Luminescence 139 (2013) 60–63.

60.  D. P. Singh, S. P. Yadav, P. K. Tripathi, P. Tripathi, Rajiv Manohar, P. K. Sharma and A. C. Pandey: Concentration Dependent Physical Parameters of Ferroelectric Liquid Crystal and ZnOS Nano material Composite System, Soft Materials 11 (2013) 305–314.

61.  D. P. Singh, S. K. Gupta, A. C. Pandey and Rajiv Manohar: Dielectric relaxation and electrical properties of ZnO1-xSx nanoparticle dispersed ferroelectric mesophase, Advanced Materials Letters 4 (7) (2013) 556–561.

62.  D. P. Singh, S. K. Gupta, K. K. Pandey, S. P. Yadav, M. C. Varia and R. Manohar: Ferroelectric Liquid Crystal Matrix Dispersed with Cu doped ZnO Nanoparticles, Non-Crystalline Solids 363 (2013) 178–186.

63.  S. K. Gupta, D. P. Singh and R. Manohar: SWCNT doped ferroelectric liquid crystal: The Electro-Optical properties with enhanced dipolar contribution, Current Applied Physics 13 (2013) 684–687.

64.  D. P. Singh, S. K. Gupta and R. Manohar: ZnO1−𝑥S𝑥 Nanosphere in Ferroelectric Liquid Crystal Matrix: The Effect of Aggregation and Defects on the Dielectric and Electro-Optical Properties Advances in Condensed Matter Physics 2013 (2013) Art. ID 250301, 1–10.

65.  S. K. Gupta, D. P. Singh, P. Tripathi, R. Manohar, M. C. Varia, L. K. Sagar and S. Kumar: CdSe quantum dot Dispersed DOBAMBC: An Electro-optical study, Liquid Crystal 40 (4) (2013) 528–533.

66.  D. P. Singh, M. C. Varia, S. K. Gupta, L. K. Sagar, S. Kumar, S. P. Yadav, and Rajiv Manohar: High Temperature Chiral Nematic Phase in Naphthalene and Cholesterol Derivative Liquid Crystal: Characterization and Dielectric Relaxation Study, Physics and Chemistry of Liquids 51 (5) (2013) 663–676.

67.  S. K. Gupta, D. P. Singh, R. Manohar, U. S. Hiremath and C.V. Yelmaggad: Dielectric behaviour of a ferroelectric liquid crystal dimer, Liquid Crystal 39 (9) (2012) 1125–1129.

68.  R.  Manohar, A. K. Srivastav, P. Tripathi and D. P. Singh: Dielectric and Electro-optical Study of ZnO Nano Rods Doped Ferroelectric Liquid Crystals, Journal of Materials Science 46 (2011) 5969–5976.

69.  R.  Manohar, A. K. Misra, D. P. Singh, S. P. Yadav, P. Tripathi, A. K. Prajapati and M. C. Varia: Dielectric, thermal and optical study of an unusually shaped liquid crystal, Journal of Physics and Chemistry of Solids 71(2010)1684–1689.

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Conference Proceedings: 03

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1. D. P. Singh, S. K. Gupta and R. Manohar: The Nanosphere Driven Optical and Dielectric Changes in Ferroelectric Liquid Crystal, AIP Conference Proceeding, Volume: 1591, Pages 1674, 2014.

2. D. P. Singh, S. K. Gupta and R. Manohar: The phenomenon of nanomaterial induced photoluminescence in Ferroelectric liquid crystals, AIP Conference Proceeding, Volume: 1536, Pages 629, 2013.

3. S. K. Gupta, D. P. Singh, and R. Manohar: FLC diffraction grating: Efficiency enhancement by SWCNT doping, AIP Conference Proceeding, Volume: 1536, Pages 1264, 2013.