Suchi Guha
Department of Physics & Astronomy, University of Missouri-Columbia MO 65211, USA
Curriculum Vitae
PUBLICATIONS
* undergraduate students advised by SG
* graduate students advised by SG
* high school students advised by SG
2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996-1993
64. "Tuning intermolecular interactions in di-octyl substituted polyfluorene via hydrostatic pressure", K. Paudel*, M. Chandrasekhar, and S. Guha (Submitted, 2009) arXiv: 0905.1736v1
63. " Synthesis of liquid crystalline benzothiazole based derivatives: a study of their optical and electrical properties", G.K. Dutta, S. Guha, and S. Patil, Organic Electronice (in press, 2009)
62. "The role of triplet states in the emission mechanism of polymer light-emitting diodes", M. Arif, S. Mukhopadhyay, S. Ramasesha, and S. Guha, Europhysics Letters 87, 57008 (2009).
61. "Triplet excitons in a ladder-type polymer: application in solar cells", K. Yang*, M. Arif, M. Förster, U. Scherf, and S. Guha, Synthetic Metals (in press, 2009)
60. "Density functional calculations of strain effects on the binding energies and adatom diffusion on (0001) GaN surfaces " , J.R. Grandusky, V. Jindal, J.E. Raynolds, S. Guha , F. Shahedipour-Sandvik, Materials Science and Engineering B 158 13, (2009).
59. "Harvesting triplet excitons for application in polymer solar cells ", M. Arif*, K. Yang*, L. Li, P. Yu, S. Gangopadhyay, M. Förster, U. Scherf, and S. Guha, Applied Physics Letters 94 , 063307 (2009).
58. "Optical properties of di-octyl substituted polyfluorene under hydrostatic pressure", K. Paudel*, M. Arif, M. Chandrasekhar, and S. Guha, Physica Status Solidi B 246 , 563 (2009).
57. "Space-charge-limited conduction in ethyl-hexyl substituted polyfluorene", S. Guha, M. Arif*, S. Gangopadhyay , and U. Scherf, J. Materials Science: Materials in Electronics 20, 351 (2009).
56. "Pulsed laser thin film growth of di-octyl substituted polyfluorene and its co-polymers", R. K. Gupta, K. Ghosh, P.K. Kahol, J. Yoon*, and S. Guha, Applied Surface Science 254, 7069 (2008).
55. "Raman spectroscopic studies of polyfluorenes", S. Guha, The Open Journal of Physical Chemistry 2, 6 (2008). ( invited review )
54. "Quantum dots by ultraviolet and x-ray lithography", M. F Bertino, R. Gadipalli, L. Martin, L. Rich, A. Yamilov, B. Heckman, N. Leventis, S. Guha, J. Katsoudas, R. S. Divan and D. C. Mancini, Nanotechnology 18, 315603 (2007).
53. "Probing electronic excitations in organic light-emitting diodes via Raman scattering ", M. Arif*, S. Guha, A. Tsami, U. Scherf, Applied Physics Letters 90, 252105 (2007).
52. "Interface states in polyfluorene-based metal-insulator-semiconductor diodes", M.Yun*, S. Gangopadhyay, M. Bai, H. Taub , M. Arif*, and. S. Guha, Organic Electronics 8, 591 (2007).
51. "Polyfluorene as a model system for space-charge-limited conduction", M. Arif*, M. Yun*, S. Gangopadhyay, K. Ghosh, L. Fadiga, F. Galbrecht, and U. Scherf, S. Guha, Phys. Rev. B 75, 195202 (2007).
50."Crystallization of amorphous silicon by self propagation of nano-engineered thermites", M. Hossain, S. Subramanian, S. Bhattacharya, Y. Gao, S. Apperson, R. Shende, S. Guha, M. Arif*, K. Gangopadhyay, and S. Gangopadhyay, Journal of Applied Physics 101, 054509 (2007); Virtual Journal of Nanoscale Science & Technology 15 (11), March 19 (2007).
49."Conformations in di-octyl substituted polyfluorene: a combined theoretical and experimental Raman scattering study", C. Volz*, M. Arif*, and S. Guha, The Journal of Chemical Physics 126, 064905 (2007).
48. " Structural and spectroscopic investigations of bulk poly[9,9-n-dioctyl fluorene]", B. Tanto, S. Guha , M. Arif*, and M.J. Winokur (Submitted, 2006).
47. "Enhanced dielectric constant of HfO 2 and Al 2 O 3 thin-films with silver nanoparticles ", R. Ravindran, M. Othmana, M. Yun, N. Biswas, N. Mehta, S. Guha, K. Gangopadhyay, and S. Gangopadhyay, ECS Transactions, 3 (3) 535 (2006).
46. " Infra red quantum dot photolithography", R.R. Gadipalli, L.A .Martin, B. Heckman, J.G. Story, M.F. Bertino, P. Fraundorf , S. Guha, and N. Leventis, Journal of Sol-Gel Science and Technology 40, 101 (2006).
45. "Patterning porous matrices and planar substrates with quantum dots", R R Gadipalli, L. A. Martin, J. G. Story; B. Heckman, Massimo F Bertino, N. Leventis, P. Fraundorf, S. Guha, Journal of Sol-Gel Science and Technology 39, 299 (2006).
44. "Electrical characterization of polyfluorene-based metal-insulator-semiconductor diodes", M.Yun*, M. Arif*, S. Gangopadhyay, and S. Guha, Mat. Res. Soc. Symp. Proc. 973E, Warrendale , PA , M07-08 (2006).
43. "Chain morphologies in blue-emitting polyfluorenes: impact on light-emitting diodes", S. Guha , M. Arif*, and C. Volz*, Mat. Res. Soc. Symp. Proc. 916 , Warrendale , PA , DD01-02 (2006).
42. "Chain morphologies in semi-crystalline polyfluorene: evidence from Raman scattering", M. Arif*, C. Volz*, and S. Guha, Physical Review Letters 96, 025503 (2006).
41. "Capacitance-voltage characterization of polyfluorene-based metal-insulator-semiconductor diodes", M. Yun*, R. Ravindran, M. Hossain, S. Gangopadhyay, U. Scherf, T. Bünnagel, F. Galbrecht, M. Arif* and S. Guha, Applied Physics Letters 89 , 013506 (2006).
40. "Agarose-stabilized gold nanoparticles for surface-enhanced Raman spectroscopic detection of DNA nucleosides", V. Kattumuri*, S. Guha , M. Chandrasekhar, K. Raghuraman, K. V. Katti , K. Ghosh and R.J. Patel, Applied Physics Letters 88, 153114 (2006); Virtual Journal of Nanoscale Science & Technology 13 (16) , April 24 (2006); Virtual Journal of Biological Physics Research 11 (8), April 15 (2006).
39. "Development of low dislocation and strain reduced GaN on Si(111) by substrate engineering", M. Jamil , J. R. Grandusky , V. Jindal , F. Shahedipour-Sandvik , S. Guha , and M. Arif*, Proc. SPIE Int. Soc. Opt. Eng. 5941 , 59411E (2005).
38. "Development of strain reduced GaN on Si (111) by substrate engineering", M. Jamil, J. R. Grandusky, V. Jindal, F. Shahedipour-Sandvik, S. Guha, and M. Arif*, Applied Physics Letters 87, 082103 (2005).
37. "Electronic structures and spectral properties of endohedral fullerenes", S. Guha and K. Nakamoto, Coordination Chemistry Reviews 249, 1111-1132 (2005). [Review Article] Recognized as a ‘top 50' most cited article from CCR, as published (2005-2008).
36. "Raman scattering from organic light emitting diodes", S. Guha, M. Arif*, J.G. Keeth*, T.W. Kehl, K. Ghosh, and R.E. Giedd, Proceedings of the 27th International Conference on the Physics of Semiconductors, eds. J. Menendez and C. G. Van de Walle, American Institute of Physics 1079 (2005). Link
35. "Laser writing of semiconductor nanoparticles and quantum dots", M. F. Bertino, R.R. Gadipalli, J.G. Story, C.G. Williams, G. Zhang, C. Sotiriou-Leventis, A. T. Tokuhiro, S. Guha and N. Leventis, Applied Physics Letters 85, 6007 (2004) and Virtual Journal of Nanoscale Science & Technology 10 (25) , Dec. 20, (2004) [FEATURED in the MRS bulletin, Feb 2005]
34. "Structural and spectroscopic investigations of bulk poly (bis(2-ethyl)hexylfluorene)", B. Tanto, S. Guha, C.M. Martin, U. Scherf, and M.J. Winokur, Macromolecules 37, 9438 (2004).
33. "Photophysics of organic emissive semiconductors under hydrostatic pressure", S. Guha and M. Chandrasekhar, Physica Status Solidi (b) 241, 3318 (2004).
32. "Raman modes in oligophenyls under hydrostatic pressure", C.M. Martin, Q. Cai , S. Guha, W. Graupner, M. Chandrasekhar, and H.R. Chandrasekhar, Physica Status Solidi (b) 241, 3339 (2004).
31. "Temperature dependent optical studies of Ti 1-x Co x O 2 ", S. Guha, K. Ghosh, J.G. Keeth*, S. B. Ogale, S. R. Shinde, J. R. Simpson, H. D. Drew, and T. Venkatesan, Applied Physics Letters 83, 3296 (2003) [and Appl. Phys. Lett. 84 , 1613 (2004)]
30. "Hydrostatic pressure dependence of the luminescence and Raman frequencies in polyfluorene ", C.M. Martin, S. Guha, M. Chandrasekhar, H.R. Chandrasekhar, R. Guentner, P. Scanduicci de Freitas, U. Scherf, Physical Review B 68 , 115203 (2003).
29. "Effect of temperature and pressure on the optical properties of polyfluorene ", C.M. Martin, S. Guha, M. Chandrasekhar, H.R. Chandrasekhar, R. Guentner, P.Scandiucci de Freitas, U. Scherf, Synthetic Metals 135-136, 273 (2003).
28. "Temperature dependent photoluminescence of organic semiconductors with varying backbone conformation ", S. Guha, J. D. Rice*, Y. T. Yau*, C. M. Martin, M. Chandrasekhar, H.R. Chandrasekhar, R. Guentner, P.Scandiucci de Freitas, U. Scherf, Physical Review B 67 , 125204 (2003).
27. "Optical spectroscopic studies of a soluble fluorene-based conjugated polymer: a hydrostatic pressure and temperature study", S. Guha, J.D. Rice*, C. M. Martin. M. Chandrasekhar, W. Graupner, and U. Scherf, Mat. Res. Soc. Symp. Proc. Vol. 708 , BB10.7.1 (2002).
26. "Tuning intermolecular interactions: A study of the structural and vibrational properties of para -hexaphenyl under pressure", S. Guha, W. Graupner, R. Resel, M. Chandrasekhar, H.R. Chandrasekhar, R. Glaser and G. Leising, Journal of Physical Chemistry 105 , 6203 (2001).
25. "Squeezing organic conjugated polymers: What does one learn?", M. Chandrasekhar, S. Guha and W. Graupner , Advanced Materials 13 , 613 (2001).
24. "Comparative optical studies of p-type and undoped GaN ", S. Guha, F. Shahedipour, R.C. Keller*, V. Yang* and B.W. Wessels, Applied Physics Letters 78 , 58 (2001).
23. "Optical transitions in para-phenylenes under hydrostatic pressure " M. Chandrasekhar, S. Guha, Q. Cai, C. M. Martin, S. C. Yang, H.R. Chandrasekhar, W. Graupner, G. Leising, Synthetic Metals 119 , 657-658 (2001).
22. "Optical properties of Organic Wide Bandgap Semiconductors Under High Pressure ", S. Guha, W. Graupner, S. Yang, M. Chandrasekhar, H. R. Chandrasekhar , Book Chapter in " Anisotropic Organic Materials - Approaches to Polar Order ", edited by R. Glaser and P. Kaszynski; ACS Symposium Series, Volume 798. American Chemical Society: Washington , D.C. , July 2001. ISBN: 0841236895.
21. "Geometry dependent electronic properties of highly fluorescent conjugated molecules ", S. Yang, W. Graupner, S. Guha, P. Puschnig, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, G. Leising, C. Ambrosch-Draxl, Physical Review Letters 85 , 2388 (2000).
20. "Influence of the molecular geometry on the photoexcitations of highly emissive organic semiconductors ", S. Yang, W. Graupner, S. Guha, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, G. Leising, SPIE Proceedings 3797 , 26 (1999).
19. "High pressure study of Raman modes in YBa2 (Cu 0.96 Ni 0.04 )4 O8 ", D.J. Payne , S. Guha, Q. Cai, M. Chandrasekhar, H.R. Chandrasekhar, U.D. Venkateswaran, B. Jayaram, J. Ulanday, Physical Review B, 60 , 4363, (1999).
18. "Planarity of para hexaphenyl ", S. Guha, W. Graupner, R. Resel, M. Chandrasekhar, H.R. Chandrasekhar, R. Glaser and G. Leising, Physical Review Letters, 82 , 3625 (1999).
17. "Optical properties of poly (para phenylenes) under high pressure ", S. Guha, S. Yang, W. Graupner, M. Chandrasekhar, H.R. Chandrasekhar, and G. Leising. Physica Status Solidi B 211 , 177 (1999).
16. "High pressure studies on the planarity of para-hexaphenyl ", S. Guha, W. Graupner, R. Resel, M. Chandrasekhar, H. R. Chandrasekhar, R. Glaser, G. Leising, Synthetic Metals 101 , 180 (1999).
15. "Raman phonons under hydrostatic pressure in YBa 2 (Cu 1-x Ni x )4O8 ", D.J. Payne, S. Guha, Q. Cai, M. Chandrasekhar, H.R. Chandrasekhar, B. Jayaram, J. Ulanday, Review of High Pressure Science and Technology 7 , 535 (1998).
14. "Electronic properties of poly (para-Phenylenes) under high pressure ", W. Graupner, S. Guha, S. Yang, M. Chandrasekhar, H.R. Chandrasekhar, G. Leising, U. Scherf, K. Müllen, Mat. Res. Soc. Symp. Proc. Vol. 488 , 873 (1998).
13. "Temperature dependence of the intervalley deformation potential of GaAs/AlAs superlattices under hydrostatic pressure", S. Guha, Q. Cai, M. Chandrasekhar, H.R. Chandrasekhar, H. Kim, A.D. Alvarenga, R. Vogelgesang, A.K. Ramdas and M.R. Melloch, Mat. Res. Soc. Symp. Proc. Vol. 499 , 201 (1998).
12. "Structural properties of hexaphenyl powder under high pressure ", S. Guha, W. Graupner, R. Resel, M. Chandrasekhar, H.R. Chandrasekhar, and G. Leising, Mat. Res. Soc. Symp. Proc. Vol. 488 , 867 (1998).
11. "Photoluminescence of short period GaAs/AlAs superlattices: a hydrostatic pressure and temperature study ", S. Guha, Q. Cai, M. Chandrasekhar, H.R. Chandrasekhar, H. Kim, A.D. Alvarenga, R. Vogelgesang, A.K. Ramdas and M.R. Melloch, Physical Review B 58 , 7222 (1998).
10. "Temperature dependence of interband transition in short period GaAs/AlAs superlattices ", S. Guha, Q. Cai, M. Chandrasekhar, H.R. Chandrasekhar, H. Kim, A.D. Alvarenga, R. Vogelgesang, A.K. Ramdas and M.R. Melloch, Physics of Low-Dimensional Structures 11/12 , 57 (1997).
9. "The isotope effect on the Raman spectrum of the pentagonal-pinch mode in C60 ", S. Guha, J. Menéndez, J.B. Page, and G.B. Adams, Physical Review B 56 , 15431 (1997).
8. "Raman cross section for the pentagonal-pinch mode in buckminsterfullerene C 60 ", J.D. Lorentzen, S. Guha, J. Menéndez, P. Gianozzi, and S. Baroni, Chemical Physics Letters 270 , 129 (1997).
7. "Empirical bond polarizability model for fullerenes ", S. Guha, J. Menéndez, J.B. Page, and G.B. Adams, Physical Review B 53 , 13106 (1996).
6. "Electron-phonon interactions in solid C60 studied by transient picosecond Raman spectroscopy ", K.T. Tsen, E.D. Grann, S. Guha, and J. Menéndez, Applied Physics Letters 68 , 1051 (1996).
5. "Silent-mode vibrational frequencies in C60 ", J. Menéndez and S. Guha, Proc. 22nd intern. Conf. on Physics of Semiconductors (World Scientific, Singapore, 1995), p.2093.
4. "Isotopically resolved Raman spectra of C 60 ", S. Guha, J. Menéndez, J.B. Page, G.B. Adams, G.S. Spencer, J.P. Lehman, P. Giannozzi and S.Baroni, Physical Review Letters 72 , 3359 (1994).
3. "Extrinsic nature of the 2.5 eV Raman resonance in C 60 ", S. Guha, J. Lorentzen, K. Sinha, J. Menéndez, G.B. Adams, J.B. Page and O.F. Sankey, Mol. Cryst. and Liq. Cryst. 256 , 391 (1994).
2. " The isotope effect on the Raman spectrum of molecular C 60 ", J. Menéndez, J.B. Page and S. Guha, Philosophical Mag. B 70 , 651 (1994).
1. " Raman study of photoexcited C 60 ", K. Sinha, S. Guha and J. Menéndez, Solid State Commun. 87 , 981 (1993).