Investigation of Dye Dopant Influence on Electrooptical and Morphology Properties of Polymeric Acceptor Matrix Dedicated for Ternary Organic Solar Cells.

Gabriela Lewińska,Maciej Sitarz,Piotr Jeleń,Jerzy Sanetra,Jarosław Kanak,Konstanty Waldemar Marszałek,Łukasz Walczak,Robert Socha

doi:10.3390/polym13234099

Abstract

The publication presents the results of investigations of the influence of dye dopant on the electrooptical and morphology properties of a polymeric donor:acceptor mixture. Ternary thin films (polymer:dye:fullerene) were investigated for potential application as an active layer in organic solar cells. The aim of the research is to determine the effect of selected dye materials (dye D131, dye D149, dye D205, dye D358) on the three-component layer and their potential usefulness as an additional donor in ternary cells, based on P3HT donor and PC71BM acceptor. UV–vis spectroscopy studies were performed, and absorption and luminescence spectra were determined. Ellipsometry parameters for single dye and ternary layers have been measured. The analyses were performed using the Raman spectroscopy method, and the Raman spectra of the mixtures and single components have been determined. Organic layers were prepared and studied using scanning electron microscope and atomic force microscope. For dyes, ultraviolet photoelectron spectroscopy and X-ray photoelectron spectroscopy studies were carried out and the ternary system was presented and analyzed in terms of energy bands.

Highlights

Organic photovoltaics (OPV) has been developing in recent years due to its cost, solution processibility, semi-transparency, mechanical flexibility, light weight, and has become increasingly interesting for technology [1,2,3]
This paper presents a study of ternary mixtures of polymer:dye:fullerene for potential applications as an active layer in ternary organic cells [24,25]
Due to the application potential, we found the effect of dye in ternary systems

Summary

Introduction

Organic photovoltaics (OPV) has been developing in recent years due to its cost, solution processibility, semi-transparency, mechanical flexibility, light weight, and has become increasingly interesting for technology [1,2,3]. The possibility of application in wearable systems, connection to IOT (Internet of Things) and powering personal devices [4,5,6] as well as the hope for the use of organic cells in space [7], causes substantial popularity of the organic photovoltaic. It should be mentioned the possibility of using OPV in indoor applications, which have excellent potential for use in flexible and wearable electronics [8,9,10]. Materials that broaden the absorption spectrum and facilitate the transport of holes and electrons are selected as the third element [12]

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