• Article  

      Carrier dynamics and conductivity of SnO 2 nanowires investigated by time-resolved terahertz spectroscopy 

      Tsokkou, D.; Othonos, A.; Zervos, Matthew (2012)
      THz spectroscopy has been applied to investigate the photo-induced and intrinsic conductivity in SnO 2 nanowires using the Drude-Smith model. The refractive index of the nanowires was found to decrease from 2.4 to 2.1 with ...
    • Article  

      Carrier dynamics in InS nanowires grown via chemical vapor deposition 

      Othonos, A.; Zervos, Matthew (2010)
      Transient femtosecond absorption spectroscopy and timecorrelating single photon counting (TCSPC) photoluminescence (PL) were employed to study InS nanowires (NWs) grown by chemical vapor deposition (CVD) and determine the ...
    • Article  

      Carrier dynamics in Β-Ga2O3 nanowires 

      Othonos, A.; Zervos, Matthew; Christofides, C. (2010)
      Carrier dynamics have been investigated in Β-Ga2O 3 nanowires (NWs) grown by the vapor-liquid-solid mechanism, using ultrashort transient absorption spectroscopy in conjunction with time-correlating single photon counting ...
    • Article  

      Carrier relaxation dynamics in SnxNy nanowires grown by chemical vapor deposition 

      Othonos, A.; Zervos, Matthew (2009)
      Carrier relaxation dynamics in tin nitride (SnxNy) nanowires have been investigated using femtosecond transient absorption spectroscopy. The nanowires were grown directly on quartz using chemical vapor deposition and had ...
    • Article  

      Femtosecond carrier dynamics in In 2O 3 nanocrystals 

      Othonos, A.; Zervos, Matthew; Tsokkou, D. (2009)
      We have studied carrier dynamics in In 2O 3 nanocrystals grown on a quartz substrate using chemical vapor deposition. Transient differential absorption measurements have been employed to investigate the relaxation dynamics ...
    • Article  

      Tin oxide nanowires: The influence of trap states on ultrafast carrier relaxation 

      Othonos, A.; Zervos, Matthew; Tsokkou, D. (2009)
      We have studied the optical properties and carrier dynamics in SnO 2 nanowires (NWs) with an average radius of 50 nm that were grown via the vapor-liquid solid method. Transient differential absorption measurements have ...
    • Article  

      Ultrafast carrier relaxation in inn nanowires grown by reactive vapor transport 

      Othonos, A.; Zervos, Matthew; Pervolaraki, M. (2009)
      We have studied femtosecond carrier dynamics in InN nanowires grown by reactive vapor transport. Transient differential absorption measurements have been employed to investigate the relaxation dynamics of photogenerated ...
    • Article  

      Ultrafast hole carrier relaxation dynamics in p-type CuO nanowires 

      Othonos, A.; Zervos, Matthew (2011)
      Ultrafast hole carrier relaxation dynamics in CuO nanowires have been investigated using transient absorption spectroscopy. Following femtosecond pulse excitation in a non-collinear pump-probe configuration, a combination ...
    • Article  

      Ultrafast Spectroscopy and Red Emission from β-Ga2O3/β-Ga2S3 Nanowires 

      Othonos, K. M.; Zervos, Matthew; Christofides, C.; Othonos, A. (2015)
      Ultrafast pump-probe and transient photoluminescence spectroscopy were used to investigate carrier dynamics in β-Ga2O3 nanowires converted to β-Ga2O3/Ga2S3 under H2S between 400 to 600 °C. The β-Ga2O3 nanowires exhibited ...