PICOLINE THIOUREA DERIVATIVE DOPED WITH Lawsonia inermis DYE AS ACTIVE LAYER IN POTENTIAL ORGANIC SOLAR CELL

Khairul WM*, Nurfifi Ashikin R, Rafizah R and Hasiah S

Abstract

PICOLINE THIOUREA DERIVATIVE DOPED WITH

Lawsonia inermis DYE AS ACTIVE LAYER IN POTENTIAL ORGANIC SOLAR CELL

Khairul WM1*, Nurfifi Ashikin R1, Rafizah R1 and Hasiah S2

1School of Fundamental Science, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Malaysia. .

2School of Ocean Engineering, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Malaysia

The versatility of conjugated thiourea system has attracted considerable attention as potential molecular framework to be applied as Organic Solar Cell (OSC). This is due to the fact that these compounds offer unique characteristics

of electronic delocalization in extended -orbital system which  bring significant contribution and brought further investigations to exploit to be used as OSC. Therefore, in the present research, interest has been focused on the design, synthesis, and characterization of unique molecular framework featuring picoline thiourea derivatives incorporated with natural approach to be applied as an active layer in organic solar cell. All these compounds were spectroscopically and analytically characterized via IR, UV-vis, 1H and 13C NMR, TGA as well as SEM. In turn, the electrical conductivity performance of the designated single molecule bearing conjugated thiourea doping with and without dyes onto the ITO substrate was investigated and eventually measured by Four Point Probe. From the SEM images, picoline thiourea in powder form exhibit board-like, compact, smooth and solid surfaces which could promise better deposition and distribution on ITO surface by the electrochemical deposition. From the series of result obtained, it revealed the synthesized compound has great potential to act as an active layer in photovoltaic cell.

Keywords: Organic Solar Cell, molecular wire, thiourea