Observation of resonant energy transfer in Au:CdS nanocomposite

Ma, G. H.; He, J.; Rajiv, K.; Tang, S. H.; Yang, Y.; Nogami, M.
June 2004
Applied Physics Letters;6/7/2004, Vol. 84 Issue 23, p4684
Academic Journal
Au:CdS nanocomposite film was investigated using femtosecond pump–probe measurement at 800 nm. Time dependence of transmittance shows a two-photon absorption followed by a saturable absorption and recovery process, which clearly demonstrates that resonant energy transfer between CdS and Au nanocomposite systems occur with excitation at 800 nm. In addition, enhancement of the two-photon absorption coefficient in Au:CdS nanocomposite with a factor of more than 6 was observed compared to that of bulk CdS. © 2004 American Institute of Physics.


Related Articles

  • Photocurrent detection from photochromic diarylethene film. Tsujioka, Tsuyoshi; Masui, Kyoko; Otoshi, Fumio // Applied Physics Letters;10/11/2004, Vol. 85 Issue 15, p3128 

    The photocurrent characteristics of a diarylethene (DAE) film were investigated. The photocurrents were attributed to the dissociation of electric carriers from the excited molecules in the DAE film. We demonstrated the on-off property of the photocurrent according to the isomerization state....

  • Perfect absorption in nanotextured thin films via Anderson-localized photon modes. Aeschlimann, Martin; Brixner, Tobias; Differt, Dominik; Heinzmann, Ulrich; Hensen, Matthias; Kramer, Christian; Lükermann, Florian; Melchior, Pascal; Pfeiffer, Walter; Piecuch, Martin; Schneider, Christian; Stiebig, Helmut; Strüber, Christian; Thielen, Philip // Nature Photonics;Oct2015, Vol. 9 Issue 10, p663 

    The enhancement of light absorption in absorber layers is crucial in a number of applications, including photovoltaics and thermoelectrics. The efficient use of natural resources and physical constraints such as limited charge extraction in photovoltaic devices require thin but efficient...

  • energy levels, electronic.  // Hutchinson Dictionary of Scientific Biography;2005, p1 

    Series of specific, discrete energy states that electrons orbiting a nucleus can occupy. In certain processes an electron may absorb external energy and move to a higher energy level (in which case the electron is said to be excited) or it may release energy (usually in the form of light) and...

  • Separation of radiation and absorption losses in two-dimensional photonic crystal single defect cavities. Alvarado-Rodriguez, I.; Yablonovitch, E. // Journal of Applied Physics;12/1/2002, Vol. 92 Issue 11, p6399 

    We have characterized the optical modes present in a two-dimensional photonic crystal single defect cavity fabricated in an InP/In[sub 0.53]3Ga[sub 0.47]As/InP double heterostructure thin film on a glass slide. The cavity resonance was tuned to different frequencies in the 1.55 µm spectral...

  • Energy transfer boosted by photonic crystals with metal film patterns. Li, Mingzhu; Liao, Qing; Zhang, Jianping; Jiang, Lei; Song, Yanlin; Zhu, Daoben; Chen, Dong; Tang, Fangqiong; Wang, Xue-Hua // Applied Physics Letters;11/12/2007, Vol. 91 Issue 20, p203516 

    An active plasmonic device is fabricated by introducing a photonic crystal structure into an energy transfer system across a metal film. It is demonstrated that the stopband of the photonic crystal plays a key role in improving the efficiency of the energy transfer. A well-designed stopband can...

  • Ultraviolet and visible upconversion emission in Tb3+/Yb3+ co-doped fluorophosphate glasses. Lai, B.; Wang, J.; Su, Q. // Applied Physics B: Lasers & Optics;Jan2010, Vol. 98 Issue 1, p41 

    Ultraviolet and visible upconversion emissions in Tb3+/Yb3+ co-doped YF3–BaF2–Ba(PO3)2 glasses were observed under 980-nm laser diode excitation. The dependence of the emission intensities of Tb3+ on the pump power reveals that two-photon processes account for blue cooperative...

  • Visible to near infrared conversion in Ce3+–Yb3+ Co-doped YAG ceramics. Ueda, Jumpei; Tanabe, Setsuhisa // Journal of Applied Physics;Aug2009, Vol. 106 Issue 4, p043101-1 

    In Ce3+–Yb3+ co-doped Y3Al5O12 (YAG) ceramics, possibility of quantum cutting mechanism converting one visible photon into two NIR photons with optimum quantum efficiency approaching 200% have been investigated. In this material, Yb3+ emissions due to the 2F5/2-2F7/2 in the range of 1...

  • Time-resolved infrared absorption studies of the solvent-dependent vibrational relaxation dynamics of chlorine dioxide. Bolinger, Joshua C.; Bixby, Teresa J.; Reid, Philip J. // Journal of Chemical Physics;8/22/2005, Vol. 123 Issue 8, p084503 

    We report a series of time-resolved infrared absorption studies on chlorine dioxide (OClO) dissolved in H2O, D2O, and acetonitrile. Following the photoexcitation at 401 nm, the evolution in optical density for frequencies corresponding to asymmetric stretch of OClO is measured with a time...

  • Numerical Simulation of High-Density Plasma-Arc Processing of FePt Nanoparticle Films. Sabau, Adrian S.; Dinwiddie, Ralph B. // JOM: The Journal of The Minerals, Metals & Materials Society (TM;Jun2006, Vol. 58 Issue 6, p35 

    This papers deals with the high-density plasma-arc processing of FePtnanoparticle films. For short processing times, different materials, and multiple length scales of the system considered, the estimation of the optimum combination of process parameters is a difficult task. The process...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics