Open AccessOrganic bulk heterojunction solar cells spin-coated in ambient environment on flexible and glass substrates
Author(s) -
Rositsa Gergova,
M. SendovaVassileva,
G. Popkirov,
Hr Dikov,
Georgy Grancharov,
P Terziyska
Publication year - 2022
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 - 10.1088/1742-6596/2240/1/012030
Subject(s) - materials science , photocurrent , spin coating , dielectric spectroscopy , polyethylene terephthalate , optoelectronics , characterization (materials science) , polymer solar cell , organic solar cell , coating , solar cell , chemical engineering , nanotechnology , composite material , polymer , electrode , chemistry , electrochemistry , engineering
Organic solar cells based on Poly (3-hexylthiophene) [6,6]-phenyl C61-butyric acid methyl ester (P3HT-PCBM) were fabricated in standard architecture by spin-coating on glass and on flexible polyethylene terephthalate (PET) substrates in ambient laboratory environment. In addition to the conventional DC characterization, impedance spectroscopy was used in order to study the capacitive behavior of the devices and obtain their electrical parameters. In combination with the electrical characterization methods, laser-beam-induced current (LBIC) measurements were used as a non-destructive method of mapping the photocurrent distribution and analyzing local device failures and macroscopic defects (shunts, dark spots, defects). The results of the study can be used to develop guidelines for the development and design of P3HT:PCBM solar cells in ambient environment.