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Pregled bibliografske jedinice broj: 658736

Charge carrier photogeneration in single- and few-layer MoS2


Gadermaier, Christoph; Borzda, Tetiana; Vujičić, Nataša; Topolovšek, Peter; Mertelj, Tomaž; Viola, Danielle; Cerullo, Giulio; Mihailović, Dragan
Charge carrier photogeneration in single- and few-layer MoS2 // SLONANO Book of Abstracts / Mihailović, Dragan ; Pintar, Albin ; Arčon, Denis ; Hassanien, Abdou (ur.).
Ljubljana, 2013. str. 69-69 (poster, sažetak, znanstveni)


Naslov
Charge carrier photogeneration in single- and few-layer MoS2

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

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

Izvornik
SLONANO Book of Abstracts / Mihailović, Dragan ; Pintar, Albin ; Arčon, Denis ; Hassanien, Abdou - Ljubljana, 2013, 69-69

Skup
SLONANO

Mjesto i datum
Ljubljana, Slovenija, 23-25.10.2013.

Vrsta sudjelovanja
Poster

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 effect suggests that photoexcitation of MoS2 also generate charge carriers. Using method of ultrafast spectroscopy we show the photogeneration of long-lived charge carriers in single- and few-layer 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

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Nataša Vujičić, (278444)