eprintid: 1255
rev_number: 6
eprint_status: archive
userid: 5
dir: disk0/00/00/12/55
datestamp: 2015-11-19 04:05:50
lastmod: 2015-11-19 04:07:09
status_changed: 2015-11-19 04:05:50
type: article
metadata_visibility: show
creators_name: Nguyen, Nang Dinh
creators_name: Tran, Thi Thao
creators_name: Do, Ngoc Chung
creators_id: dinhnn@vnu.edu.vn
creators_id: thaott@vnu.edu.vn
creators_id: chungdn@vnu.edu.vn
title: Characterization of Organic Solar Cells Made from Hybrid Photoactive Materials of P3HT:PCBM/nc-TiO2
ispublished: pub
subjects: Phys
divisions: fac_physic
abstract: Nanorod-like TiO2 was grown on Ti wafers by annealing at 700oC for 1.5h. Hybrid Organic Solar Cells (HOSC) were then prepared by using a nano hybrid material of P3HT:PCBM/nc-TiO2. The HOSC have the laminar structure of Al/P3HT:PCBM/TiO2/Ti, where P3HT:PCBM were made by spincoating. Under illumination of the standard light wavelength ( = 470 nm), the polymer luminescence quenching was observed at the heterojunctions, resulting in the charge separation. With an illumination power of 56 mW/cm2, a best hybrid solar cell exhibited an open circuit voltage of 0.60 V, short cut current density of 4.60 mA/cm2, fill factor of 0.54 and photoelectrical conversion efficiency of 2.6 %. This suggests a useful application for fabricating “reverse” OSCs, where the illumination light goes-in through the windows of Al-electrode cathode, instead of the indium tin oxide (ITO). For these devices, the Ohmic contact of wires to metallic Ti-substrates can be made much better than to ITO electrode. Keywords: Organic Solar cell (OSC); nanorod-like TiO2, P3HT:PCBM/nc-TiO2 heterojunctions; polymer quenching.
date: 2014
date_type: published
full_text_status: none
publication: VNU Journal of Mathematics-Physics
volume: 30
number: 1
pagerange: 8-15
refereed: TRUE
citation:   Nguyen, Nang Dinh and Tran, Thi Thao and Do, Ngoc Chung  (2014) Characterization of Organic Solar Cells Made from Hybrid Photoactive Materials of P3HT:PCBM/nc-TiO2.  VNU Journal of Mathematics-Physics, 30  (1).   pp. 8-15.