Energy levels of natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood for dye-sensitized solar cells

• DOI: 10.1007/s40243-017-0089-1
• Publication Date: 2017-02-18T08:00:41Z
• Authors: Nur ezyanie Safie; Norasikin Ahmad l...; Norul Hisham Hamid; Suhaila Sepeai; Mohd Asri Mat Teridi; Mohd Adib Ibrahim; Kamaruzzaman Sopian; Hironori Arakawa
• Keywords: HOMO/LUMO; Ultraviolet; Natural dye

Dye-sensitized solar cells (DSSCs) are fabricated using natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritieraelata) wood. The a cold extraction the Soxhlet methods. This paper presents results of analysis optical characteristics via ultraviolet–visible spectrophotometry Fourier transform infrared spectroscopy. band gap highest occupied molecular orbital (HOMO)–lowest unoccupied (LUMO) levels each investigated sensitizer calculated on basis analyzed data collected photoluminescence cyclic voltammetry. DSSCs with have better conversion efficiency (ŋ = 0.1695%) than 0.109%). performance indicates an increment as ratios mixed mengkulang:rengas (60%:40%) (40%:60%) increase up to 0.296 0.292%, respectively.