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Fizika i Tekhnika Poluprovodnikov, 2016, Volume 50, Issue 9, Pages 1213–1219
(Mi phts6364)
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This article is cited in 8 scientific papers (total in 8 papers)
Amorphous, glassy, organic semiconductors
Photoluminescence spectra of thin films of ZnTPP-C$_{60}$ and CuTPP-C$_{60}$ molecular complexes
M. A. Elistratovaab, I. B. Zakharovaa, N. M. Romanovac, V. Yu. Panevina, O. E. Kvyatkovskiiab a Peter the Great St. Petersburg Polytechnic University
b Ioffe Institute, St. Petersburg
c Lappeenranta University of Technology, Lappeenranta, Finland
Abstract:
The results of studies of thin composite films of zinc and copper tetraphenylporphyrins with different fractions of fullerene C$_{60}$ are reported. The photoluminescence spectra are recorded, and the composition and surface morphology are analyzed by means of scanning electron microscopy. The results show a difference in the structure of films with two types of metals (Zn, Cu) entering into the complex of the porphyrin macrocycle. An additional long-wavelength photoluminescence band at 1.4 eV is detected for the first time, which is evidence of the formation of ZnTPP–C$_{60}$ molecular complexes from a gas-dynamic vapor flow upon condensation. In CuTPP thin films, the processes of self-assembly into nanowires 20 nm in diameter and up to 50 $\mu$m in length and the formation of nanoheterojunctions upon the addition of fullerene C$_{60}$ are observed. Quantum-chemical calculations in the context of density-functional theory are carried out to interpret the experimental data.
Received: 11.02.2016 Accepted: 18.02.2016
Citation:
M. A. Elistratova, I. B. Zakharova, N. M. Romanov, V. Yu. Panevin, O. E. Kvyatkovskii, “Photoluminescence spectra of thin films of ZnTPP-C$_{60}$ and CuTPP-C$_{60}$ molecular complexes”, Fizika i Tekhnika Poluprovodnikov, 50:9 (2016), 1213–1219; Semiconductors, 50:9 (2016), 1191–1197
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https://www.mathnet.ru/eng/phts6364 https://www.mathnet.ru/eng/phts/v50/i9/p1213
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