Header Home Profile Research Publication Gallary

 

      Patents:

      1. TiN based metamaterials. US Patent, PCT/US2013/64057, G. V. Naik, B. Saha, T. D. Sands, V. M. Shalaev and A. Boltasseva.

      Journal Publications:

        Publications in 2017

        27. B. Osoba, B. Saha, S. Almeida, L. Brandt, J. Patil, M. Roots, E. Acosta, J. Wu, T. J. K. Liu, “Variability Study for Low-Voltage MEM Relay Operation” (in-review, 2017).

        26. B. Saha, B. Osoba, T. J .K. Liu, and J. Wu, “Nanoelectromechanical Relay Switch Operations at 40 mV enabled by Self-assembled Molecular Coating” (in-review, 2017)

        25.B. Saha, A. Shakouri and T. D. Sands, “ Metal/Semiconductor Superlattices: Development of an Elusive Heterostructure”. (in-review, 2017).

        24. B. Saha, J. Anders, Y. R. Koh, J. Bahk, M. M. Gonzalez, A. Shakouri and T. D. Sands, “Large Thermoelectric Power-factor in Epitaxial n- and p-type Scandium Nitride (ScN)” (in-review 2017)

        23. K. Dong, H. S. Choe, X. Wang, H. Liu, B. Saha, C. Koh, Y. Deng, K. B. Tom, S. Lou, L. Wang, C. P. Grigoropoulos, Z. You, J. Yao and J. Wu, “A 0.2-Volt Microelectromechanical Switch Enabled by Phase Transition”, (in-review, 2017).

        22. M. Garbrecht, L. Hultman, M. H. Fawey, T. D. Sands, and B. Saha, “Tailoring of surface plasmon resonances in TiN/(Al,Sc)N superlattices by dielectric layer thickness variation”, (in-review 2017)

        21. M. Garbrecht, L. Hultman, M. H. Fawey, T. D. Sands, and B. Saha, “Void-mediated coherency-strain relaxation and impediment of cubic-to-hexagonal transformation in epitaxial metastable metal/semiconductor TiN/Al0.72Sc0.28N multilayers.” Phys. Rev. Materials 1, 033402 (2017).

        20. B. Saha, M. Garbrecht, J. Anders, Y. R. Koh, L. Hultman, M. M. Gonzalez, A. Shakouri and T. D. Sands, “Compensation of Native Donor Doping in ScN: Carrier Concentration Control and p-type ScN”, Appl. Phys. Lett. 110, 252104 (2017),

        19. M. Garbrecht, B. Saha J. L. Schroeder, L. Hultman, and T. D. Sands “Dislocation Pipe Diffusion in Nitride Superlattices Directly Observed in Lattice Resolved Microscopy”, Sci. Rep. 7, 46092 (2017).

        18. B. Saha, A. Peschot, B. Osoba, and T. J. K. Liu and J. Wu, “Reduction of Adhesion Energy on Mirco Relay Contacts Through Surface Engineering ” APL Materials, 5, 036103, (2017).

        17. B. Saha, Y. R. Koh, J. P. Feser, S. Sadasivam, A. Shakouri, T. S. Fisher, and T. D. Sands, “Phonon Wave Effects in the thermal transport of epitaxial TiN/(Al,Sc)N metal/dielectric superlattices.” J. Appl. Phys. 121, 015109 (2017).


        Publications in 2016

        16. B. Saha, S. Saber, E. Stach, E. P. Kvam, and T. D. Sands “Understanding the Rocksalt-to-Wurtzite Phase Transformation Through Microstructural Analysis of (Al,Sc)N Epitaxial Thin Films. Appl. Phys. Lett. 109, 172102 (2016).

        15. B. Osoba, B. Saha, L. Dougherty, J. Edgington, C. Qian, F. Niroui, J. H. Lang, V. Bulovic, J. Wu and T. J .K. Liu, “Sub-50 mV NEM Relay Operation Enabled by Self-Assembled Molecular Coating” IEEE International Electron Devices Meeting (IEDM) Technical Digest, pp 655-658, (2016).

        14. M. Garbrecht, J. L. Schroeder, L. Hultman, J. Birch, B. Saha and T. D. Sands, "Microstructural evolution and thermal stability of ZrxHf1-xN/ScN (x= 0, 0.5, 1) metal/semiconductor superlattices" J. Mater. Sci., 51, 8250 (2016)

        13. Y. Chen, S. Zhang, W. Gao, F. Ke, J. Yan, B. Saha,, C. Ko, J. Suh, B. Chen, J. W. Ager III, W. Walukiewicz, R. Jeanloz, J. Wu, "Pressure-induced structural transition and phase diagram of CdxZn1-xO alloys", Appl. Phys. Lett. 108, 152105 (2016)

        12. B. Saha, Y. R. Koh, J. Comparan, S. Sadasivam, J. L. Schroeder, J. Birch, T. S. Fisher, A. Shakouri, T. D. Sands, “Cross-plane thermal transport in (Ti,W)N/(Al,Sc)N metal/semiconductor superlattice.” Phys. Rev. B 93, 045311, (2016).


        Publications in 2015

        11. J. L. Schroeder, B. Saha, M. Garbrecht, N. Schell, T. D. Sands, and J. Birch, “Thermal stability of epitaxial TiN/(Al,Sc)N metal/semiconductor superlattices for refractory applications.” J. Mater. Sci. 50 (8), 3200-3206 (2015).


        Publications in 2014

        10. B. Saha, S. K. Lawrence, J. L. Schroeder, J. Birch, D. F. Bahr, and T. D. Sands, “Enhanced Hardness in Epitaxial TiAlScN Alloy Thin Films and Rocksalt TiN/(Al,Sc)N Superlattices.” Appl. Phys. Lett. 105, 151904 (2014).

        9. B. Saha, G. V. Naik, S. Saber, E. Stach, V. M. Shalaev, A. Boltasseva, and T. D. Sands, “TiN/(Al,Sc)N metal/dielectric superlattices and multilayers as hyperbolic metamaterial in the visible spectral range.” Phys. Rev. B, 90, 125420, (2014). (Editor’s Suggestion)

        8. B. Saha, S. Saber, G. V. Naik, A. Boltasseva, E. Stach, E. P. Kvam, and T. D. Sands, “Development of epitaxial AlxSc1-xN for artificially structured metal/semiconductor superlattice metamaterials.” Phys. Stat. Sol. B, 252, 251 (2015). (Editor’s Choice and Cover Article, Purdue MSE News)

        7. G. V. Naik, B. Saha, J. Liu, S. M. Saber, E. Stach, J. M. K. Irudayaraj, T. D. Sands, V. M. Shalaev and A. Boltasseva, “Epitaxial superlattices with titanium nitride as a plasmonic component for optical hyperbolic metamaterials.” Proc. Natl. Acad. Sci. 111, 7546 (2014). (Chosen for Issue Highlight, Purdue News)


        Publications in 2013

        6. B. Saha, G. Naik, V. Drachev, A. Boltasseva, E. E. Marinero, and T. D. Sands, “Electrical and optical properties of ScN and Mn-doped ScN deposited by dc-magnetron sputtering.” J. Appl. Phys., 114, 063519 (2013).

        5. P. V. Burmistrova, J. Maassen, T. Favaloro, B. Saha, S. Salamat, Y. R. Koh, M. S. Lundstrom, A. Shakouri, and T. D. Sands, “High mobility and high thermoelectric power factor in epitaxial ScN films deposited by reactive magnetron sputtering onto MgO(001) substrate.” J. Appl. Phys. 113, 153704 (2013).


        Publications in 2012

        4. B. Saha, T. D. Sands and U. V. Waghmare, “Electronic structure, vibrational spectra and thermal properties of HfN/ScN metal/semiconductor superlattices: A first-principles Study.” J. Phys.: Cond. Matt., 24 415303, (2012).


        Publications in 2011

        3. B. Saha, T. D. Sands and U. V. Waghmare, “Electronic structure, vibrational spectrum, and thermal properties of yttrium nitride (YN): A first-principles study.” J. Appl. Phys. 109, 083717 (2011).

        2. B. Saha, T. D. Sands and U. V. Waghmare, “First-principles analysis of thermoelectric ZrN/ScN metal/semiconductor superlattices”:, J. Appl. Phys. 109, 073720 (2011).


        Publications in 2010

        1. B. Saha, J. Acharya, T. D. Sands and U. V. Waghmare, “Electronic structures, phonons and thermal properties of ScN, ZrN and HfN: A first-principles Study”, J. Appl. Phys. 107, 033715 (2010).


      Conference Publications:

      5. M. Garbrecht, J. L. Schroeder, L. Hultman, J. Birch, T. D. Sands and B. Saha, “Microstructural evolution and thermal stability of nitride-based metal/semiconductor superlattices for thermoelectric and hard-coating applications.” European Microscopy Congress 2016: Proceedings, pp.237-238.

      4. J. Suh, B. Saha, J. Wu. "Novel device functionalities enabled by substitutional doping against native propensity in 2D semiconductors" Energy Efficient Electronic Systems (E3S), 2015 Fourth Berkeley Symposium, September 6-11, 2015.

      3. M. Garbrecht, J. L. Schroeder, B. Saha, T. D. Sands, J. Birch. Microscopy Conference Gottingen, September 6-11, 2015.

      2. G. V. Naik, B. Saha, T. D. Sands, A. Boltasseva, 4th International Topical Meeting on Nanophotonics and Metamaterials (NANOMETA 2013), Seefeld, Austria, January 2-6, 2013.

      1. G. V. Naik, B. Saha, J. Liu, S. M. Saber, E. Stach, J. Irudayaraj, T. D. Sands, V. M. Shalaev, and A. Boltasseva, "A Titanium Nitride based Metamaterial for Applications in the Visible," Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2013 Conference on. IEEE, 2013.


      Presentation (Oral and Posters)

      36. Oral:: B. Saha, M. Garbrecht, and T. D. Sands, Defects in Epitaxial Metal/Semiconductor Superlattices, Materials Research Society (MRS) Fall Meeting, Boston, November 30, 2016.

      35. Oral:: B. Saha, A. Peschot, B. Osoba, T. J. K. Liu, and J. Wu, Enginering Adhesion Properties of Micro Relay Contacts Through Surface Engineering, Materials Research Society (MRS) Fall Meeting, Boston, December 1, 2016.

      34. Poster: B. Saha, Yee Rui Koh, A. Shakouri and T. D. Sands, Phonon wave-effects in the thermal transport of epitaxial TiN/(Al,Sc)N metal/semiconductor superlattices, Materials Research Society (MRS) Fall Meeting, Boston, November 29, 2016.

      33. Poster: B. Saha, B. Osoba, T. J. K. Liu, and J. Wu, Contact Surface Material Engineering Toward miliVolt Relays, IEEE S3S conference, San francisco, October, 2016.

      32. Oral and Poster: B. Saha, B. Osoba, L. Dougherty, J. Edgington, C. Qian, F. Niroui, J. H. Lang, V. Bulovic, T. J. K. Liu and J. Wu, Sub-50 mV NEM Relay enabled by Self-assembled Molecular Coating. E3S Annual Review Meeting, UC Berkeley, September 2016.

      31. Poster: B. Saha, B. Osoba, T. J. K. Liu and J. Wu, Reduction of Adhesion Energy on Mirco Relay Contacts Through Surface Engineering, E3S External Review Meeting, UC Berkeley, January, 2016.

      30. Poster: Engineering Adhesion Properties of NEM Relay Contact Metals. E3S Annual Review Meeting, Massachusetts Institute of Technology, Boston,Septermber, 2015.

      29. Poster: Disorder and Defects in Solar Cell Materials, Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) Workshop, National University of Sinagpore (NTU), CREATE Towers, Singapore, July 28th, 2015.

      28. Invited Special Talk: “Metal/Semiconductor Superlattices …… at Last”- Timothy D. Sands and Bivas Saha, Materials Research Society (MRS) Spring Meeting 2015, San Francisco, CA.

      27. Poster: Metal/Semiconductor Superlattices …… at Last, Purdue University Prospective Future Faculty Workshop, West Lafayette, March 2, 2015.

      26. Oral: Effect of Period Thickness on the Cross-plane Thermal Transport of (Ti,W)N/(Al,Sc)N Metal/Dielectric Superlattices, International Thermoelectric Society, Nashville, TN, July 6-10, 2014.

      25. Oral: Heat Conduction through (Ti,W)N/(Al,Sc)N Metal/Semiconductor Superlattices, Electronic Materials Conference, University of California, Santa Barbara, CA, June, 2014.

      24. Oral: Thermal transport in TiN/(Al,Sc)N metal/dielectric superlattices. Materials Research Society Spring Meeting, San Francisco, CA, USA, April 21-25 2014.

      23. Oral: Electronic and optical properties of ScN and (Sc,Mn)N thin films deposited by dc-magnetron sputtering, American Physical Society (APS) March Meeting, Denver, March 3-7, 2014.

      22. Poster: Pseudomorphic stabilization of cubic AlxSc1-xN with high Al concentration and large critical thickness on (001) MgO substrates with TiN as a seed layer, Materials Research Society Fall Meeting, Boston, MA, USA, December 2-6, 2013. (Awarded “one of the very best” research presentation in the Fall MRS meeting, and Nominated for the Best Poster Award)

      21. Oral: TiN/(Al,Sc)N metal/dielectric superlattices as hyperbolic metamaterial in the visible range. Electronic Materials Conference, Notre Dame University, June 26-28, 2013.

      20. Poster: TiN/(Al,Sc)N metal/dielectric superlattices as hyperbolic metamaterial in the visible range. School of Materials Engineering External Advisory Board Meeting, Purdue University, April 25-26, 2013.<br />

      19. Oral: TiN/(Al,Sc)N metal/dielectric superlattices as hyperbolic metamaterial in the visible range. Materials Research Society Spring Meeting, San Francisco, April 1-5, 2013.

      18. Poster: TiN/(Al,Sc)N metal/dielectric superlattices as hyperbolic metamaterial in the visible range. SIGMA XI Graduate Student Research Awards Competition; Purdue University, February 13, 2013. (Best Poster Award)

      17. Poster: Growth, characterization and optoelectronic properties of Mn-doped ScN. Birck Nanotechnology Center Annual Review Meeting, Purdue University, October 10, 2012.<br />

      16. Oral: Growth, characterization and optoelectronic properties of Mn-doped ScN. Electronic Materials Society. Penn. State Convention Center, Pennsylvania, June 20-22, 2012.

      15. Poster: TiN/(Al,Sc)N superlattices and metamaterial for light harvest application. Symposium on Nanomaterial for Energy, Burton. D. Morgan Center for Entrepreneurship, Purdue University, April 2012.

      14. Oral: Growth, characterization and optoelectronic properties of Mn-doped ScN. Bivas Saha and Tim Sands; Materials Science and Engineering Annual Day 2012, Purdue University, May 2012.

      13. Poster: Growth, characterization and optoelectronic properties of Mn-doped ScN. Symposium on Nanomaterial for Energy, Burton. D. Morgan Center for Entrepreneurship, Purdue University, April 2012. (Best Poster Award)

      12. Poster: Growth, characterization and optoelectronic properties of Mn-doped ScN. The Society of Sigma Xi, Graduate Student & Post-doctoral Researcher Poster Competition, Stewart Center, Purdue University, February 2012.

      11. Poster: Nanostructured thermoelectric for automotive waste heat recovery: Bivas Saha and Timothy D. Sands. Materials Science and Engineering Annual Day 2011, Purdue University, May 2011.<br />

      10. Oral: Understanding the graphene-BN interface. Materials Research Society Spring Meeting, Boston, MA, USA, December 2-6, 2013.

      9. Poster: Nanostructured (Hf,Zr)N/(Sc,Y)N metal/semiconductor superlattices for thermoelectric energy conversion: Materials Research Society Spring Meeting 2010, San Francisco, California, April 5-9, 2010. (Nominated for the Best Poster Award).

      8. Oral: Ordering tendency of nitrogen in N doped MgO for spintronic Applications: Joint INDO-EU meeting on Advanced Materials, HRI, Allahabad, India, January 2010.

      7. Oral: Nitride metal/semiconductor superlattices and alloys for thermoelectric and thermionic applications: Joint INDO-EU meeting on Advanced Materials, HRI, Allahabad, India, January 2010.<br />

      6. Oral: Nitride metal/semiconductor superlattices and alloys for thermoelectric and thermionic applications. Annual Faculty Meeting, JNCASR, India, November 2009.

      5. Oral: Metal/semiconductor superlattices for solid state energy conversion. TSU In-house symposium. JNCASR August, 2009.

      4. Poster: Nitride metal/semiconductor superlattices and alloys for thermoelectric and thermionic applications. Winter School on Chemistry and Physics of Materials, JNCASR, November 30 –December 6, 2009. (Best Poster Award)

      3. Poster: Strain, electronic structure, phonons and thermal Properties of ZrN/ScN and HfN/ScN metal/semiconductor superlattices. Indo-US joint conference on advanced materials Research. JNCASR 2009.

      2. Poster: Strain, electronic structure, phonons and thermal Properties of ZrN/ScN and HfN/ScN metal/semiconductor superlattices. CPMU In-house symposium. JNCASR 2009.

      1. Poster: Strain, electronic structure, phonons and thermal Properties of ZrN/ScN and HfN/ScN metal/semiconductor superlattices. Frontiers and Directions in Condensed Matter Physics. Indian Institute of Science, Bangalore 2009.

     

Footer