Abstract:
Light-emitting organic field-effect transistors (LE-FETs) on the basis of composite films that consist of perovskite nanocrystals (CsPbBr3) embedded in a matrix of conjugated polymer–polyfluorene (PFO)–have been obtained, and their electrical and optical properties have been investigated. Output and transfer current-voltage characteristics (I-Vs) of FETs based on PFO : CsPbBr3 films (component ratio 1 : 1) have a slight hysteresis at temperatures of 100–300 K and are characteristic of hole transport. The hole mobility is ∼3.3 and ∼1.9 cm2/(V s) at the modes of the saturation and low fields, respectively, at 250 K and reaches ∼5 cm2/(V s) at 100 K. It has been shown that the application of pulsed voltage to LE-FETs based on PFO:CsPbBr3 can reduce the ionic conductivity and provide electroluminescence in this structure at 300 K.
Citation:
A. N. Aleshin, I. P. Shcherbakov, D. A. Kirilenko, L. B. Matyshkin, V. A. Moshnikov, “Light-emitting field-effect transistors based on composite films of polyfluorene and CsPbBr3 nanocrystals”, Fizika Tverdogo Tela, 61:2 (2019), 388–394; Phys. Solid State, 61:2 (2019), 256–262
\Bibitem{AleShcKir19}
\by A.~N.~Aleshin, I.~P.~Shcherbakov, D.~A.~Kirilenko, L.~B.~Matyshkin, V.~A.~Moshnikov
\paper Light-emitting field-effect transistors based on composite films of polyfluorene and CsPbBr$_{3}$ nanocrystals
\jour Fizika Tverdogo Tela
\yr 2019
\vol 61
\issue 2
\pages 388--394
\mathnet{http://mi.mathnet.ru/ftt8933}
\crossref{https://doi.org/10.21883/FTT.2019.02.47142.244}
\elib{https://elibrary.ru/item.asp?id=37478290}
\transl
\jour Phys. Solid State
\yr 2019
\vol 61
\issue 2
\pages 256--262
\crossref{https://doi.org/10.1134/S1063783419020021}
Linking options:
https://www.mathnet.ru/eng/ftt8933
https://www.mathnet.ru/eng/ftt/v61/i2/p388
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