TY  - JOUR
AU  - A.O. Kostetskyi
AU  - Yu.P. Piryatinski
AU  - A.B. Verbitsky
AU  - P.M. Lutsyk
AU  - A.G. Rozhin
TI  - Photoluminescence of melanin-based nanocomposites with fullerene derivative
T2  - Semiconductor Physics, Quantum Electronics & Optoelectronics
PY  - 2022
VL  - 25
IS  - 1
SP  - 049
EP  - 057
DO  - 10.15407/spqeo25.01.049
UR  - https://doi.org/10.15407/spqeo25.01.049
AB  - This paper presents the study of the photoluminescent properties of molecular compositions consisting of melanin and an electron-acceptor material – fullerene derivative, [6,6]-phenyl C61 butyric acid methyl ester (PCBM). These molecular compositions have not been studied well and are promising for molecular electronics of natural materials, in particular, for organic solar cells. The novelty of this work relates to the study of photoluminescence spectra obtained for these molecular compositions and nanocomposites in various solvents (chloroform, acetonitrile, and toluene) as well as in a polystyrene matrix; these studies were carried out at various, in particular, liquid helium (4.2 K), temperatures. The obtained results allowed us to ascertain mechanisms of the state of aggregation and donor-acceptor interaction between melanin and PCBM
KW  - photoluminescence
KW  - melanin
KW  - PCBM
KW  - C60
KW  - charge transfer state
KW  - time-resolved emission spectrum
KW  - donor-acceptor complex
ER  -