Open AccessInfluence of ZnO nanoparticles as electron transport material on the performance and stability of organic solar cells with sputtered Ag back electrodes
Author(s) -
Rositsa Gergova,
M. SendovaVassileva,
G. Popkirov,
Hr Dikov,
MariyaDesislava Atanasova,
Georgy Grancharov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1762/1/012039
Subject(s) - materials science , organic solar cell , electrode , nanoparticle , electron transport chain , sputtering , nanotechnology , electron , chemical engineering , optoelectronics , composite material , polymer , thin film , chemistry , physics , biochemistry , quantum mechanics , engineering
ZnO has been widely used as electron selective material in P3HT:PCBM organic solar cells with either conventional or inverted architecture in order to enhance the extraction of electrons and block the collection of holes at one electrode. In this work we investigate the influence of ZnO nanoparticles electron transport layer (ETL) on the performance and stability of P3HT:PCBM based organic solar cells with conventional architecture and magnetron sputtered back Ag contacts. Their stability in the dark and under real outdoor conditions was monitored by current-voltage measurements and impedance spectroscopy. The impedance spectra were taken as a function of applied bias under illumination in order to reveal more information about the degradation mechanisms taking place in the device.