Effect of potassium iodide on luminescent and photovoltaic properties of organic solar cells P3HT-PCBM

It has been investigated spectral-luminescence properties of polymer films, doped with potassium iodide (KI). Using of KI didn't lead to the gradual changes of optical density of polymer films and the range of band gap semiconductor polymer P3HT. The fluorescence intensity of P3HT decreased and...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2016-02, Vol.110 (1), p.12059-12063
Main Authors: Ibrayev, N Kh, Afanasyev, D A, Zhapabaev, K A
Format: Article
Language:English
Subjects:
Additives
Circuits
Current carriers
Electrical impedance
Fluorescence
Investigations
Luminescence
Magnetic fields
Magnetic properties
Open circuit voltage
Optical density
Optical properties
Photovoltaic cells
Photovoltaic effect
Polymer films
Polymeric films
Polymers
Potassium
Potassium iodides
Semiconductors
Short circuit currents
Solar cells
Solar magnetic field
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Summary:It has been investigated spectral-luminescence properties of polymer films, doped with potassium iodide (KI). Using of KI didn't lead to the gradual changes of optical density of polymer films and the range of band gap semiconductor polymer P3HT. The fluorescence intensity of P3HT decreased and changed by use of KI. Using of 1% KI in polymer leaded to decrease of fluorescence lifetime. Influence of heavy atom on photovoltaic effect of organic solar cells has been investigated. 1% of KI in polymer film leaded to decrease of Isc and slightly decrease of Uoc. Investigation shows that magnetic field does not affect on photovoltaic properties of cells P3HT-PCBM. Magnetic field increased of open circuit voltage and short circuit current of solar cells with 1% of KI. Study of electrical impedance of cells revealed the magnetic sensivity of solar cells with KI additives. The lifetime of free charge carriers increased in the magnetic field for solar cells with KI additives.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/110/1/012059