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* old and bolonia study programme


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Structure-property relationships of curved aromatic materials from first principles
Layla Martin-Samos, Laura Zoppi, Kim K. Baldridge, 2014, original scientific article

Found in: ključnih besedah
Summary of found: molecules, organic crystals, many-body perturbation theory, optical properties, ...
Keywords: organic molecules, organic crystals, many-body perturbation theory, optical properties
Published: 16.06.2016; Views: 2971; Downloads: 115
URL Fulltext (0,00 KB)

Negative field‐dependent charge mobility in crystalline organic semiconductors with delocalized transport
Andrey Kadashchuk, Egon Pavlica, Gvido Bratina, Fei Tong, 2018, original scientific article

Abstract: 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.
Found in: ključnih besedah
Keywords: time of flight, organic semiconductors, single crystals
Published: 07.05.2018; Views: 3422; Downloads: 0
.pdf Fulltext (2,01 MB)

Dopant induced morphology changes in ZnO nanocrystals
Sukvir Singh, Manisha Chhikara, K. N. Sood, Santa Chawla, K. Jayanthi, 2009, original scientific article

Found in: ključnih besedah
Summary of found: ...ZnO crystals, photoluminescence, UV-emission, XRD...
Keywords: ZnO crystals, photoluminescence, UV-emission, XRD
Published: 13.07.2021; Views: 830; Downloads: 0

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