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    A detailed analysis of current-voltage characteristics of Au/perylene-monoimide/n-Si Schottky barrier diodes over a wide temperature range
    (AMER INST PHYSICS, 2011) Yuksel, O. F.; Kus, M.; Simsir, N.; Safak, H.; Sahin, M.; Yenel, E.
    The current-voltage characteristics of Au/perylene-monoimide (PMI)/n-Si Schottky device have been investigated at a wide temperature range between 75 and 300 K in detail. The measured current-voltage (I-V) characteristics of the device show a good rectification behavior at all temperatures. The electronic parameters such as the ideality factor and the barrier height are determined from the experimental data using standard current-voltage analysis method and also temperature dependence of these parameters is analyzed. In addition to the standard analysis, using the Cheung and Cheung method, the series resistance and some other electrical properties are calculated for the device, and a good agreement is obtained between relevant diode parameters. It was observed that Au/PMI/n-Si Schottky diodes exhibit space charge limited (SCL) conduction at all temperatures. Therefore, we have analyzed this SCL current mechanism in more detail. From this analysis, several electronic parameters related with the SCL mechanism are determined, and it is found that Poole-Frenkel effect is dominant in reverse bias. (C) 2011 American Institute of Physics. [doi:10.1063/1.3610394]
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    Sepiolite increases mineralized tissue associated genes expression and mineralization of the cementoblasts
    (ELSEVIER, 2019) Hakki, S. S.; Bozkurt, Ş. B.; Yenel, E.; Kuş, M.
    [Abstract not Available]
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    Surface modification of CdSeS nanocrystals for polymer hybrid solar cells
    (ROYAL SOC CHEMISTRY, 2016) Erdogan, A.; Karakaya, C.; Gonce, M. K.; Buyukcelebi, S.; Yenel, E.; Kara, K.; Ozcivan, A. N.
    We report the synthesis of fluorene-carbazole derivatives as capping agents for CdSeS nanocrystals and present their performance in polymer hybrid solar cells. CdSeS nanocrystals and different ligands consisting of fluorene and carbazole units were synthesized and characterized. Both oleic acid and pyridine capped CdSeS nanocrystals were used as reference materials in polymer hybrid solar cells. We observed that our synthesized materials show better efficiencies depending on their structures. In comparison with the reference cells consisting of pyridine capped CdSeS nanocrystals, ligand capped CdSeS shows better efficiency due to electron withdrawing and accepting groups in its structure. The reason behind the superiority of our ligands compared to the reference pyridine is the donor and/or acceptor based compatibility of the combined structures and effective surface modification as well.