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Pregled bibliografske jedinice broj: 690853

Charge carrier photogeneration in few-layers of MoS2


Borzda, Tetiana; Gadermeier, Christoph; Vujičić, Nataša; Topolovšek, Peter; Mertelj, Tomaž; Viola, Danielle; Cerullo, Giulio; Mihailović, Dragan
Charge carrier photogeneration in few-layers of MoS2 // Non-equilibrium Dynamics of Correlated Electron Systems: latest theoretical and experimental advances/Book of Abstracts / Jan Kogoj (ur.).
Ljubljana, 2013. str. 64-64 (predavanje, sažetak, znanstveni)


Naslov
Charge carrier photogeneration in few-layers of MoS2

Autori
Borzda, Tetiana ; Gadermeier, Christoph ; Vujičić, Nataša ; Topolovšek, Peter ; Mertelj, Tomaž ; Viola, Danielle ; Cerullo, Giulio ; Mihailović, Dragan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Non-equilibrium Dynamics of Correlated Electron Systems: latest theoretical and experimental advances/Book of Abstracts / Jan Kogoj - Ljubljana, 2013, 64-64

Skup
Non-equilibrium Dynamics of Correlated Electron Systems: latest theoretical and experimental advances

Mjesto i datum
Krvavec, Slovenija, 18-20.12.2013.

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Neobjavljeni rad

Ključne riječi
MoS2; charge transfer; photoexcitation; ultrafast spectroscopy

Sažetak
The primary photoexcitations in MoS2 are excitons with a binding energy close to 0.5 eV or even higher in single flakes. Their relaxation behavior has been described as the interplay of trapping, phonon-assisted interband transitions and radiative recombination. On the other hand, the observation of photocurrents and a photovoltaic eff ect suggests that photoexcitation of MoS2 also generate charge carriers. Using method of ultrafast spectroscopy we show the photogeneration of long-lived charge carriers few-layers flakes of MoS2 dispersed in an inert PMMA matrix. Charges are formed from both the A and B excitons with a time constant of approximately 1 ps during the fastest observed exciton relaxation process.

Izvorni jezik
Engleski



POVEZANOST RADA


Autor s matičnim brojem:
Nataša Vujičić, (278444)