| Naslov: | Negative field‐dependent charge mobility in crystalline organic semiconductors with delocalized transport |
|---|
| Avtorji: | ID Tong, Fei (Avtor)
ID Kadashchuk, Andrey, IMEC (Avtor)
ID Pavlica, Egon, UNG (Avtor)
ID Bratina, Gvido, UNG (Avtor), et al. |
|---|
| Datoteke: |
Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u.  |
|---|
| Jezik: | Angleški jezik |
|---|
| Vrsta gradiva: | Delo ni kategorizirano |
|---|
| Tipologija: | 1.01 - Izvirni znanstveni članek |
|---|
| Organizacija: | UNG - Univerza v Novi Gorici
|
|---|
| Opis: | Charge-carrier mobility has been investigated by time-of-flight (TOF) transient photocurrent in a lateral transport con- figuration in highly crystalline thin films of 2,7-dioctyl[1]benzothieno [3,2-b][1] benzothiophene (C8-BTBT) grown by a zone-casting alignment technique. High TOF mobility has been revealed that it is consistent with the delocalized nature of the charge transport in this material, yet it featured a positive temperature dependence at T ≥ 295 K. Moreover, the mobility was surprisingly found to decrease with electric field in the high-temperature region. These observations are not compat- ible with the conventional band-transport mechanism. We have elaborated an analytic model based on effective-medium approximation to rationalize the puzzling findings. The model considers the delocalized charge transport within the energy landscape formed by long-range transport band-edge variations in imperfect organic crystalline materials and accounts for the field-dependent effective dimensionality of charge transport percolative paths. The results of the model calculations are found to be in good agreement with experimental data. |
|---|
| Ključne besede: | time of flight, organic semiconductors, single crystals |
|---|
| Leto izida: | 2018 |
|---|
| Št. strani: | 12 |
|---|
| Številčenje: | 73 |
|---|
| PID: | 20.500.12556/RUNG-3921-d57bbada-1079-4c3d-7472-bf7227c6f241 |
|---|
| COBISS.SI-ID: | 5147899 |
|---|
| NUK URN: | URN:SI:UNG:REP:CC4S2MA2 |
|---|
| Datum objave v RUNG: | 07.05.2018 |
|---|
| Število ogledov: | 5264 |
|---|
| Število prenosov: | 0 |
|---|
| Metapodatki: |     |
|---|
|
:
|
Kopiraj citat |
|---|
| | | | Skupna ocena: | (0 glasov) |
|---|
| Vaša ocena: | Ocenjevanje je dovoljeno samo prijavljenim uporabnikom. |
|---|
| Objavi na: |  |
|---|
Postavite miškin kazalec na naslov za izpis povzetka. Klik na naslov izpiše
podrobnosti ali sproži prenos. |
