PHOTOVOLTAIC AND OPTICAL PROPERTIES OF COMPOSITE FILMS OF MESOTETRAPHENYLPORPHYRIN AND MULTIWALL CARBON NANOTUBES ArticleNagovitsyn I.A., Zavedeev E.V., Chudinova G.K., Gadzhiev T.T., Komissarov G.G., Zubov A.I., Kurilkin V.V.Успехи прикладной физики. Vol. 1. 2013. P.. 403-407