Hostname: page-component-8448b6f56d-wq2xx Total loading time: 0 Render date: 2024-04-24T23:47:26.502Z Has data issue: false hasContentIssue false

A photovoltaic response of a Schottky diode based on the conducting polymer PEDOT:PSS and inorganic semiconductors

Published online by Cambridge University Press:  22 July 2010

V. V. Kislyuk
Affiliation:
Taras Shevchenko Kyiv National University, pr. Glushkov 2/5, 03022 Kyiv, Ukraine
P. S. Smertenko
Affiliation:
Institute of Semiconductor Physics, pr. Nauki 45, 03028 Kyiv, Ukraine
O. P. Dimitriev*
Affiliation:
Institute of Semiconductor Physics, pr. Nauki 45, 03028 Kyiv, Ukraine
A. A. Pud
Affiliation:
Institute of Bioorganic Chemistry and Petrochemistry, 50 Kharkivske shose, 02160 Kyiv, Ukraine
Get access

Abstract

Hybrid organic-inorganic heterostructures have been produced using the conducting polymer PEDOT:PSS and three types of semiconductor single crystals, i.e., high-ohmic and low-ohmic cadmium sulphide (CdS, n-type semiconductor) and low-ohmic cadmium telluride (CdTe, p-type semiconductor). A photovoltaic (PV) response was observed upon light illumination of both CdS/PEDOT:PSS and CdTe/PEDOT:PSS heterojunctions. Photocurrent spectra unequivocally evidenced the main contribution of band-band transitions of inorganic crystals to the PV response, and current-voltage measurements indicated that band bending due to a depleting region at the surface of the crystals takes place. The suggested band bending was consistent with the model of the vacuum level alignment only at the interface of the low-ohmic CdS crystal and the polymer, which results in formation of a Schottky barrier responsible for the PV response. However, the analogous band bending for high-ohmic CdS and p-type CdTe crystals could be associated only with the Fermi level pinning regime at the semiconductor interfaces.

Type
Research Article
Copyright
© EDP Sciences, 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Weiler, U., Mayer, Th., Jaegermann, W., Kelting, C., Schlettwein, D., Makarov, S., Wo þhrle, D., J. Phys. Chem. B 108, 19398 (2004) CrossRef
Brown, S., Osikowicz, W., Wang, Y., Salaneck, W.R., Org. Electron. 8, 14 (2007)
Brown, S., Salaneck, W.R., Chem. Phys. Lett. 438, 259 (2007)
Salaneck, W.R., Fahlman, M., J. Mat. Res. 19, 1917 (2004) CrossRef
Tang, J.X., Lee, C.S., Lee, S.T., Xu, Y.B., Chem. Phys. Lett. 396, 92 (2004) CrossRef
Petterson, L.A.A., Carlsson, F., Inganas, O., Arwin, H., Thin Solid Films 313, 356 (1998) CrossRef
Groenendaal, L., Jonas, F., Freitag, D., Pielartzik, H., Reynolds, J.R., Adv. Mater. 12, 481 (2000) 3.0.CO;2-C>CrossRef
E.H. Roderick, Metal – Semiconductor Contacts (Clarendon Press, Oxford, 1978)
Klimova, N.V., Korsunskaya, N.E., Markevich, I.V., Pekar, G.S., Singaevsky, A.F., Mater. Sci. Eng. B 34, 12 (1995) CrossRef
Smertenko, P., Fenenko, L., Brehmer, L., Schrader, S., Adv. Colloid Interface Sci. 116, 255 (2005) CrossRef
Ciach, R., Dotsenko, Y.P., Naumov, V.V., Smyryeva, A.N., P.S. Smertenko. Sol. Energy Mater. Sol. Cells 76, 613 (2003) CrossRef
R. Baron, J.W. Mayer, Semiconductors and Semimetals (Academic Press, New York, London, 1970)
S.M. Sze, Physics of Semiconductor Devices, 2nd edn. (Wiley-Interscience Pub., New York, 1981)
O. Madelung, U. Rössler, M. Shultz, II-VI and I-VII compounds; semimagnetic compounds (Springer, Berlin, 1999)
K.V. Shalimova, Physics of Semiconductors (Energoatomizdat, Moscow, 1985)
Kahn, A., Koch, N., Gao, W., J. Polym. Sci. B: Polym. Phys. 41, 2529 (2003) CrossRef
Ichizo, U., J. Phys. Soc. Jpn 22, 770 (1967)
R.S. Muller, T.I. Kemins, Device Electronics for integrated circuits (John Wiley & Sons, New York, 1986)
Simmons, J.G., Phys. Rev. 155, 657 (1967) CrossRef
N.H. Abrikosov, V.F. Bankina, L.V. Poretskaya, E.V. Skudnova, L.E. Shelimova, Semiconductor compounds, their synthesis and properties (Nauka, Moscow, 1967)
Harnik, E., Solid State Electron. 8, 931 (1965) CrossRef
Matthews, S.M., Turiel, I., Furst, M., Kallmann, H., Rev. Sci. Instrum. 39, 970 (1968) CrossRef
Kallmann, H., Kramer, B., Shain, J., Spruch, G.M., Phys. Rev. 117, 1482 (1960) CrossRef
Kislyuk, V.V., Fedorchenko, M.I., Smertenko, P.S., Dimitriev, O.P., Pud, A.A., J. Phys. D: Appl. Phys. 43, 185301 (2010) CrossRef