Push–pull ruthenium diacetylide complexes: new dyes for p-type dye-sensitized solar cells

摘要

A couple of novel donor–π–acceptor dyes based on organometallic ruthenium diacetylide complexes ( SL1 and SL2 ) have been designed and synthesized for use in NiO-based p-type dye-sensitized solar cells (p-DSCs). The optical and electrochemical properties of the dyes were assessed and theoretical calculations were performed to rationalize the experimental data. The best performing dye in NiO-based p-DSC devices is the red dye SL1 , which gives a photocurrent density of 2.25 mA cm ~(?2) and maximum IPCE of 18%. This represents a promising result, paving the way for future finely tuned organometallic efficient dyes for such application.