scholarly journals Terahertz short-range mobilities in neat and intermixed regions of polymer:fullerene blends with controlled phase morphology

2018 ◽  
Vol 6 (44) ◽  
pp. 22301-22309 ◽  
Author(s):  
Philipp Krauspe ◽  
Demetra Tsokkou ◽  
Martina Causa' ◽  
Ester Buchaca-Domingo ◽  
Zhuping Fei ◽  
...  

Terahertz spectroscopy unravels the inner working principles of polymer:fullerene blend organic semiconductors with regard to their solar cell performance.

2020 ◽  
pp. 114-119

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.


Author(s):  
Apichat Phengdaam ◽  
Supeera Nootchanat ◽  
Ryousuke Ishikawa ◽  
Chutiparn Lertvachirapaiboon ◽  
Kazunari Shinbo ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document