Abstract
We report an experimental investigation of the non-steady-state photoelectromotive force in nanostructured GaN within porous glass and polypyrrole within chrysotile asbestos. The samples are illuminated by an oscillating interference pattern created by two coherent light beams and the alternating current is detected as a response of the material. Dependences of the signal amplitude versus temporal and spatial frequencies, light intensity, and temperature are studied for two wavelengths λ=442 and 532 nm. The conductivity of the GaN composite is measured: σ=(1.1–1.6)×10−10 Ω−1 cm−1 (λ=442 nm, I 0=0.045–0.19 W/cm2, T=293 K) and σ=(3.5–4.6)×10−10 Ω−1 cm−1 (λ=532 nm, I 0=2.3 W/cm2, T=249–388 K). The diffusion length of photocarriers in polypyrrole nanowires is also estimated: L D=0.18 μm.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
M. Ilegems, J. Cryst. Growth 13–14, 360 (1972)
R.K. Crouch, W.J. Debnam, A.L. Fripp, J. Mater. Sci. 13, 2358 (1978)
N.I. Kuznetsov, A.E. Nikolaev, A.S. Zubrilov, Yu.V. Melnik, V.A. Dmitriev, Appl. Phys. Lett. 75, 3138 (1999)
T.V. Vernitskaya, O.N. Efimov, Russ. Chem. Rev. 66, 443 (1997)
S.M. Ryvkin, Photoelectric Effects in Semiconductors (Consultants Bureau, New York, 1964)
M.P. Petrov, S.I. Stepanov, A.V. Khomenko, Photorefractive Crystals in Coherent Optical Systems (Springer, Berlin, 1991)
M.P. Petrov, I.A. Sokolov, S.I. Stepanov, G.S. Trofimov, J. Appl. Phys. 68, 2216 (1990)
P. Levitz, G. Ehret, S.K. Sinha, J.M. Drake, J. Chem. Phys. 95, 6151 (1991)
V.Yu. Davydov, R.E. Dunin-Borkovski, V.G. Golubev, J.L. Hutchison, N.F. Kartenko, D.A. Kurdyukov, A.B. Pevtsov, N.V. Sharenkova, J. Sloan, L.M. Sorokin, Semicond. Sci. Technol. 16, L5 (2001)
L. Bragg, G.F. Claringbull, Crystal Structure of Minerals (Bell, London, 1965)
N.D. Sobolev, Introduction to Asbestos Science (Nedra, Moscow, 1971) (in Russian)
I.V. Golosovsky, R.G. Delaplane, A.A. Naberezhnov, Y.A. Kumzerov, Phys. Rev. B 69, 132301 (2004)
N.F. Mott, E.A. Davis, Electron Processes in Non-crystalline Materials (Clarendon, Oxford, 1979)
S.R. Elliott, Physics of Amorphous Materials (Longman, London, 1984)
S.I. Stepanov, G.S. Trofimov, Sov. Phys. Solid State 31, 49 (1989)
M. Bryushinin, V. Kulikov, I. Sokolov, Phys. Rev. B 65, 245204 (2002)
A.K. Datta, S. Bhattacherjee, J. Mater. Sci. 21, 1041 (1986)
A.M. Timonov, S.M. Vasilieva, Soros Educ. J. 6, 33 (2000)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Bryushinin, M., Golubev, V., Kumzerov, Y. et al. Non-steady-state photo-EMF in nanostructured GaN and polypyrrole within porous matrices. Appl. Phys. B 95, 489–495 (2009). https://doi.org/10.1007/s00340-009-3388-0
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00340-009-3388-0