Author(s)

Tran Si Trong Khanh, Nguyen Phuong Hoai Nam, Nguyen Nang Dinh

Advanced Research Group of Nano-Semiconducting Materials and Devices (ARGD), University of Engineering and Technology, VNU in Hanoi, Hanoi, Vietnam.

Multiwalled carbon nanotubes (MWCNTs) mixed in poly(3-hexylthiophene) (P3HT) were used as a photoactive layer for organic solar cells (OSC). The flexible OSCs of a structure of PET/rGO-P3HT/P3CT/PCBM/LiF-Al were prepared by spincoating. The UV-Vis absorption spectra of the photoactive films and current-voltage characteristics of the OSCs showed the advantage of the composite devices above the pristine-polymeric ones. Under illumination of light with a 100 mW/cm²-powerdensity, the photoelectrical conversion efficiency (PCE) of the OSCs with 3.0 wt% MWNCTs embedded in the photoactive layer possess a value as large as 2.35%. The obtained results suggest further useful applications of the flexible large-area solar cells.

P3HT-MWCNTs, Composite Photovoltage, UV-Vis Absorption, Photoluminescence (PL) Quenching, J-V Characteristics, Photoelectrical Conversion Efficiency (PCE)

Khanh, T. , Nam, N. and Dinh, N. (2020) Facile Preparation, Characterization of Flexible Organic Solar Cells Using P3HT-MWCNTS Composite Photoactive Layer. Journal of Materials Science and Chemical Engineering, 8, 1-10. doi: 10.4236/msce.2020.810001.