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  • rubrene crystal
  • rubrene crystal
  • rubrene single-crystal OFET
  • rubrene single-crystal OFET
  • rubrene single-crystal OFET
  • rubrene single-crystal OFET
  • rubrene single-crystal OFET
  • rubrene single-crystal OFET
  • rubrene single-crystal OFET
  • rubrene single-crystal OFET
  • 4-probe rubrene device
  • rubrene crystal
  • cross channel
  • 1-in rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene crystal
  • rubrene OFET on a fingertip
  • mol. steps in rubrene
  • STM of rubrene
  • 1st WSe2 FETs, APL 2004
  • 1st WSe2 FETs, APL 2004
  • STM on rubrene, AM 2006
  • PL of crystals, AM 2012
  • bias stress effect, PRB 2010
  • bias stress effect, AM 2012
  • SAM on rubrene, AM 2011
  • SAM on rubrene, AFM 2009
  • SAM on graphene, Nano Lett 2010
  • photocurrent oscillations, AM 2011
  • exciton diffusion, Nature M. 2010
  • instabilities in OFETs, PCCP 2012
  • low-noise Hall effect, Nature M. 2013
  • ultra-flexible OFETs, Nature Comm. 2012
  • Vitaly's 1st parylene system
  • TES-ADT film
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We are a research group based in Rutgers University Physics Department in Piscataway, New Jersey, where we study the physics of novel semiconductors. Our research tends to revolve around the following themes:

  1. Fundamentals of charge carrier transport in organic semiconductors (OFETs).
  2. The fundamental optical properties of highly ordered organic semiconductors (exciton dynamics, photo-conductivity and the photovoltaic effect).
  3. Molecular self-assembly at functional interfaces.
  4. Novel inorganic layered semiconductors (dihalcogenides and graphene).
  5. Photo-physics of hybrid (organo-inorganic) perovskites.
  6. Ionic-liquid gating of multiferroic oxides.

Watch video: Vacuum lamination approach to high-performance OFETs [video-1]

Watch video: Crystallization of TES-ADT on flexible substrates [video-2]

Fall MRS 2012, Tutorial Lecture: "Organic single crystals 101" [download file]

Latest News (click individual entry for abstract)

  1. Multi-particle interactions and non-linear photoconductivity in rubrene.
  2. Ionic-liquid gating of multi-ferroic oxide SrRuO3.
  3. Trap healing and very high-resolution Hall effect in org. semiconductors.
  4. Extremely flexible solution-processed organic devices are demonstrated.
  5. Dependence of nominal μ on VG sweep rate is revealed in disordered OFETs.
  6. Bias stress effect is measured in "air-gap" OFETs.
  7. Vacuum lamination approach to fabrication of high-performance OFETs.
  8. Origin of PL spectral variability in crystalline organic semiconductors is revealed.
  9. An amazing effect of photo-triggered diffusion of molecular oxygen in a crystalline organic semiconductor is reported.
  10. The origin of the bias-stress instability in single-crystal OFETs is revealed.
  11. A very large exciton diffusion length (LEX ~ 3-8 μm) is observed in highly ordered organic semiconductors.
  12. A molecular self-assembly of silanes on organic semiconductors is discovered.
  13. D. J. Ellison from the group of Prof. D. C. Frisbie (University of Minnesota) successfully applied a Kelvin Probe Microscopy (KPM) to our SAM-rubrene system.
  14. Microscopic mechanism of SAM nucleation and growth on organic surfaces is revealed.
  15. A high-density hole-doped regime in graphene is realized by growing FTS SAM on top of the single-layer graphene FETs.