Thin-film heterostructures based on conducting polymers and organic semiconductors
We have carried out the experimental verification of a possibility to produce organic heterostructures by using films of organic semiconductors (OS) which are photosensitive in a wide spectral region, absorb light, and generate charge carriers in the region of transparency of films of conducting...
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| Datum: | 2009 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2009
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| Schriftenreihe: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/118865 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Thin-film heterostructures based on conducting polymers and organic semiconductors / Ya.I. Vertsimakha, O.I. Aksimentyeva, R.J. Perminov, D.O. Poliovyi // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2009. — Т. 12, № 3. — С. 218-223. — Бібліогр.: 9 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | We have carried out the experimental verification of a possibility to produce
organic heterostructures by using films of organic semiconductors (OS) which are
photosensitive in a wide spectral region, absorb light, and generate charge carriers in the
region of transparency of films of conducting polymers – electrochemically synthesized
polyaniline (PAN) and poly-3,4-ethylenedioxythiophene (PEDOT) stabilized by
polystyrenesulfone acid (PSS). As components for the fabrication of these
heterostuctures, we chose photosensitive organic semiconductors of the n-type, N,N`-
dimethyl-3,4,9,10-perylenetetracarboxydiimide (МРР), and of the р-type, pentacene
(Pn), which were thermally sprayed on thin layers of PAN and PEDOT. The
photovoltage of heterostuctures produced at the temperature of substrates 370 K is
several times greater than that of components, reaches its maximum in the region of
strong light absorption in OS layers, but is one order less in the region of strong
absorption in polymers. This testifies to the appearance of an internal electric field near
the polymer/OS boundary which enhances the efficiency of separation of photogenerated
charge carriers, whereas the efficiency inherent to photogeneration of carriers in the
layers with PAN and PEDOT-PSS is insufficient yet. |
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