T-Shaped Indan-1,3-dione Derivatives as Promising Electron Donors for Bulk Heterojunction Small Molecule Solar Cell
- Resource Type
- Authors
- Dinesh Pathak; Tham Adhikari; Tyler Reed; Filip Bureš; Jean-Michel Nunzi; Parmeshwar Solanke; Tomas Wagner
- Source
- Subject
- Morphology
Materials science
Photoluminescence
Indan-1,3-dione
XRD
Nanotechnology
02 engineering and technology
010402 general chemistry
01 natural sciences
Polymer solar cell
law.invention
Inorganic Chemistry
chemistry.chemical_compound
law
Solar cell
Surface roughness
Molecule
Dewetting
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Spectroscopy
Organic Chemistry
Doping
021001 nanoscience & nanotechnology
Bulk Heterojunction
Roughness
Atomic and Molecular Physics, and Optics
0104 chemical sciences
Electronic, Optical and Magnetic Materials
Chemical engineering
chemistry
Solar Cell
Polystyrene
0210 nano-technology
- Language
- English
We report on the photovoltaic performance of novel T-Shaped Indan-1,3-dione derivatives as donors in a solution processed bulk heterojunction solar cells. Small molecule bulk heterojunction solar cells of these molecules with [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) were fabricated and characterized. The preliminary characterization of these devices yielded a PCE of 0.24% and 0.33% for two separate derivatives. These low power conversion efficiencies were attributed to a high surface roughness with a large number of dewetting spots. Doping with 10% Polystyrene in the Indan-1,3-dione derivatives decreases surface roughness and dewetting spots thereby improving the efficiency of the devices. Efficiency of the devices was found as 0.39% and 0.51% for two derivatives after doping with polystyrene. The charge transfer mechanism was studied with photoluminescence quenching. The morphology and packing behavior of molecules were further studied using Atomic Force Microscopy (AFM) and X-ray diffraction (XRD).