Organic Semiconductor Photovoltaic Materials

Abstract

Organic solar cells (OSCs) are an emerging alternative photovoltaic technology and thus they have recently gained much attention. In this chapter, recent developments in organic photovoltaic materials, involving small molecule donors and non-fullerene acceptors for vacuum and solution-processed photovoltaic cells, are summarized. A general overview of the structure-property relationships of these organic photovoltaic materials and the design rules for such materials is presented. Critical factors which determined their photophysical properties such as energy levels, absorption, and carrier mobilities are also highlighted.