A hybrid solid-liquid polymer photodiode for the bioenvironment

Antognazza, M. R.; Ghezzi, D.; Musitelli, D.; Garbugli, M.; Lanzani, G.
June 2009
Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p243501
Academic Journal
We demonstrate that a prototypical semiconducting polymer, poly[2-methoxy-5-(2′-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) maintains unaltered its optoelectronic properties throughout the various steps for neural preparation. Films of MEH-PPV, after prolonged immersion in water or buffer solution, are characterized by linear and nonlinear optical spectroscopy. Based on this result, we introduce a hybrid solid-liquid photodiode based on MEH-PPV, in which we use culturing media as liquid, ionic cathodes. The hybrid device is proposed as an active interface between living tissue and conducting polymers for cell diagnostic and neural implants.


Related Articles

  • Solid-liquid phase transitions in CdTe crystals under pulsed laser irradiation. Gnatyuk, V. A.; Aoki, T.; Gorodnychenko, 0. S.; Hatanaka, Y. // Applied Physics Letters;11/3/2003, Vol. 83 Issue 18, p3704 

    Phase transitions in CdTe crystals irradiated with nanosecond KrF (248 nm) excimer laser pulses were investigated by a numerical simulation and time-resolved reflectivity method. By solving the time-dependent heat flow equation and taking into account the temperature dependences of semiconductor...

  • Relating the physical structure and optical properties of conjugated polymers using neutron reflectivity in combination with photoluminescence spectroscopy. Mitchell, William J.; Burn, Paul L.; Thomas, Robert K.; Fragneto, Giovanna; Markham, Jonathan P.J.; Samuel, Ifor D.W. // Journal of Applied Physics;3/1/2004, Vol. 95 Issue 5, p2391 

    Understanding the effect of physical structure and the role of interfaces is critical for gaining insight into the optoelectronic properties of conjugated polymers and their behavior in semiconductor devices such as organic light-emitting diodes and photovoltaic cells. We have developed an in...

  • Photochemical stability of nonlinear optical chromophores in polymeric and crystalline materials. Rezzonico, Daniele; Seong-Ji Kwon; Figi, Harry; Kwon, O-Pil; Jazbinsek, Mojca; Günter, Peter // Journal of Chemical Physics;3/28/2008, Vol. 128 Issue 12, p124713 

    We compare the photochemical stability of the nonlinear optical chromophore configurationally locked polyene 2-{3-[2-(4-dimethylaminophenyl)vinyl]-5,5-dimethylcyclohex-2-enylidene} malononitrile (DAT2) embedded in a polymeric matrix and in a single-crystalline configuration. The results show...

  • Distribution of the Density of Electronic States in the Energy Gap of Microcrystalline Hydrogenated Silicon. Kazanskii, A. G.; Khabarova, K. Yu. // Semiconductors;Oct2004, Vol. 38 Issue 10, p1221 

    Photomodulation spectroscopy was applied to a study of the distribution of the density of electronic states in the energy gap of microcrystalline hydrogenated silicon (μc-Si:H) with a varied level of boron doping. The information on the density-of-states distribution was extracted by...

  • Novel Sorbents for Solid-Liquid Extraction. Majors, Ronald E. // LC-GC Europe;Dec2013, Vol. 26 Issue 12, p685 

    New sorbent materials for solid-phase extraction (SPE), dispersive solid-phase extraction (dSPE), solid-phase microextraction (SPME), and other solid-liquid extraction methods continue to be developed both in academia and the commercial sector. Here, we cover some areas of significant...

  • On the theory of electron transfer reactions at semiconductor electrode/liquid interfaces. Gao, Yi Qin; Yi Qui Gao; Georgievskii, Yuri; Marcus, R. A.; Marcus, R.A. // Journal of Chemical Physics;2/15/2000, Vol. 112 Issue 7 

    Electron transfer reaction rate constants at semiconductor/liquid interfaces are calculated using the Fermi Golden Rule and a tight-binding model for the semiconductors. The slab method and a z-transform method are employed in obtaining the electronic structures of semiconductors with surfaces...

  • Exciton trapping at heterojunctions in polymer blends. Morteani, Arne C.; Friend, Richard H.; Silva, Carlos // Journal of Chemical Physics;6/22/2005, Vol. 122 Issue 24, p244906 

    Optoelectronic devices made from semiconductor polymers often employ partially phase-separated binary polymer blends with “distributed heterojunctions” in the polymer film, and the migration of bulk excitons towards these heterojunctions crucially influences the device performance....

  • Stokes shear flow over a grating: Implications for superhydrophobic slip. Chiu-On Ng; Wang, C. Y. // Physics of Fluids;Jan2009, Vol. 21 Issue 1, pN.PAG 

    A semianalytical model based on the method of eigenfunction expansions and domain decomposition is developed for Stokes shear flow over a grating composed of a periodic array of parallel slats, with finite slippage on solid surfaces and infinite slippage on the bottom of troughs mimicking a...

  • Solid-liquid interface free energy in binary systems: Theory and atomistic calculations for the (110) Cu–Ag interface. Frolov, T.; Mishin, Y. // Journal of Chemical Physics;8/7/2009, Vol. 131 Issue 5, p054702 

    We analyze thermodynamics of solid-liquid interfaces in binary systems when the solid is in a nonhydrostatic state of stress. The difficulty lies in the fact that chemical potential of at least one of the chemical components in a nonhydrostatic solid is an undefined quantity. We show,...


Read the Article


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

Try another library?
Sign out of this library

Other Topics