Yazar "Yıldız, Dilber Esra" için listeleme
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Investigation of electrical characteristics of Ag/ZnO/Si sandwich structure
Güllü, Hasan Hüseyin; Bayraklı Sürücü, Özge; Terlemezoğlu, Makbule; Yıldız, Dilber Esra; Parlak, Mehmet (Springer, 2019)In this study, temperature-dependent current-voltage (I-V), frequency-dependent capacitance-voltage (C-V) and conductance-voltage (G/omega-V) measurements are carried out for the electrical characterization of a zinc oxide ... -
Investigation on dielectric properties of atomic layer deposited Al 2O3 dielectric films
Al/Al2O3/p-Si Schottky barrier diodes (SBDs) were fabricated using atomic layer deposition technique in order to investigate dielectric properties of SBDs. For this purpose, admittance measurements were conducted at room ... -
Leakage current by Frenkel-Poole emission on benzotriazole and benzothiadiazole based organic devices
Yıldız, Dilber Esra; Karakuş, Melike; Toppare, Levent Kamil; Çırpan, Ali (Elsevier Ltd, 2014)In this study three different organic semiconductors were used in the fabrication of ITO/PEDOT:PSS/Polymer:PCBM/LiF/Al configuration. Reverse current density-voltage (Jr-V) measurements of the samples were investigated to ... -
The main electrical and interfacial properties of benzotriazole and fluorene based organic devices
Electrical and interfacial properties of ITO/PEDOT:PSS/poly((9,9-dioctylfluorene)-2,7-diyl(2-dodecyl-benzo[1,2,3]triazole)) (PFTBT)/Au devices were investigated using current-voltage (I-V), capacitance-voltage (C-V) and ... -
On the negative capacitance behavior in the forward bias of Au/n–4H–SiC (MS) and comparison between MS and Au/TiO2/n–4H–SiC (MIS) type diodes both in dark and under 200 W illumination intensity
Çetinkaya, Hayriye Gökçen; Yıldız, Dilber Esra; Altındal, Şemsettin (World Scientific Publishing Co. Pte Ltd, 2015)In order to see the effect of interfacial layer on electrical characteristics both Au/n-4H- SiC (MS) and Au/TiO<inf>2</inf>/n-4H-SiC (MIS) type Schottky barrier diodes (SBDs) were fabricated and their main electrical ... -
Optimizing the organic solar cell efficiency: Role of the active layer thickness
A 2-dodecyl benzotriazole and 9,9-dioctylfluorene containing alternating conjugated polymer, poly((9,9-dioctylfluorene)-2,7-diyl-(4,7-bis(thien-2-yl) 2-dodecyl-benzo[1,2,3]triazole)) (PFTBT), was blended with PCBM (1:1, ... -
Silafluorene-based polymers for electrochromic and polymer solar cell applications
Erlik, Ozan; Akbaşoğlu Ünlü, Naime; Hizalan, Gönül; Özdemir Hacıoğlu, Şerife; Çömez, Seda; Yıldız, Dilber Esra; Toppare, Levent Kamil; Çırpan, Ali (John Wiley and Sons Inc., 2015)In this study, four novel silafluorene (SiF) and benzotriazole (Btz) bearing conjugated polymers are synthesized. In the context of electrochemical and optical studies, these polymers are promising materials both for ... -
Solution processable benzotriazole and fluorene containing copolymers for photovoltaic applications
2-Dodecyl benzotriazole and 9,9-dioctylfluorene containing alternating copolymers poly((9,9-dioctylfluorene)-2,7-diyl-(2-dodecyl-benzo[1,2,3]triazole)) (P1), poly((9,9-dioctylfluorene)-2,7-diyl-(4,7-bis(thien-2-yl) ... -
A study on electrical properties of Au/4H-SiC Schottky diode under illumination
Yıldız, Dilber Esra; Karadeniz, S.; Güllü, Hasan Hüseyin (Springer, 2021)Y In this work, a metal-semiconductor diode in the form of Au/4H-SiC is fabricated, and the electrical properties of this device are systematically examined under dark and different illumination intensities. To perform ... -
Study on the electrical properties of ZnSe/Si heterojunction diode
Güllü, Hasan Hüseyin; Bayraklı Sürücü, Özge; Yıldız, Dilber Esra; Parlak, Mehmet (Springer New York LLC, 2017)ZnSe thin film is e-beam evaporated on monocrystalline p-Si to fabricate n-ZnSe/p-Si heterojunction. The electrical properties were investigated by current–voltage (I–V), capacitance–voltage (C–V) and conductance–voltage ... -
Study on the reverse bias carrier transport mechanism in Au/TiO2/n-4H-SiC structure
Alialy, Sahar; Yıldız, Dilber Esra; Altındal, Şemsettin (American Scientific Publishers, 2016)In this paper we examine the reverse bias carrier transport mechanism in Au/TiO2/n-4H-SiC structure. The current-voltage-temperature (IR-V-T) plots have been investigated in the temperature range of 200-380 K. Experimental ... -
Synthesis of a benzotriazole bearing alternating copolymer for organic photovoltaic applications
İstanbulluoğlu, Çağla; Göker, Seza; Hizalan, Gönül; Özdemir Hacıoğlu, Şerife; Arslan Udum, Yasemin; Yıldız, Dilber Esra; Çırpan, Ali; Toppare, Levent Kamil (Royal Society of Chemistry, 2015)A low band gap donor–acceptor (D–A) copolymer PTBTBDT, namely, poly(2-dodecyl-4,7-di(thiophen-2-yl)-2H-benzo[d][1,2,3]triazole-alt-4,8-bis(2-ethylhexyloxy)benzo[1,2-b:4,5-b′]dithiophene), was designed and synthesized via ... -
Temperature and frequency effects on electrical and dielectric properties of n-4H SiC based metal-insulator-semiconductor (MIS) diode interlayered with Si3N4 thin film
Güllü, Hasan Hüseyin; Yıldız, Dilber Esra (Springer, 2020)Effects of frequency and temperature variations on the electrical properties of Au/Si3N4/n-4H SiC diode were investigated. The diode responses to the change in frequency with applied AC signal of varying frequencies and ... -
Temperature dependence of electrical properties in In/Cu 2 ZnSnTe 4 /Si/Ag diodes
Güllü, Hasan Hüseyin; Yıldız, Dilber Esra; Bayraklı Sürücü, Özge; Terlemezoğlu, Makbule; Parlak, Mehmet (Indian Academy of Sciences, 2019)Cu2ZnSnTe4 (CZTTe) thin films with In metal contact were deposited by thermal evaporation on monocrystalline n-type Si wafers with Ag ohmic contact to investigate the device characteristics of an In/CZTTe/Si/Ag diode. The ... -
Temperature-Dependent Electrical Characteristics of Au/Si3N4/4H n-SiC MIS Diode
Yiğiterol, Fatih; Güllü, Hasan Hüseyin; Bayraklı Sürücü, Özge; Yıldız, Dilber Esra (Springer New York LLC, 2018)Electrical characteristics of the Au/Si3N4/4H n-SiC metal–insulator-semiconductor (MIS) diode were investigated under the temperature, T, interval of 160–400 K using current–voltage (I–V), capacitance–voltage (C- V) and ... -
A triazoloquinoxaline and benzodithiophene bearing low band gap copolymer for electrochromic and organic photovoltaic applications
Özdemir Hacıoğlu, Şerife; Akbaşoğlu Ünlü, Naime; Aktaş, Ece; Hizalan, Gönül; Yıldız, Dilber Esra; Çırpan, Ali; Toppare, Levent Kamil (Elsevier Ltd, 2017)A new triazoloquinoxaline and benzodithiophene based copolymer was synthesized to investigate its electrochemical, optical and photovoltaic behaviors. According to the polymer design, combination of two acceptor units ... -
UV light activated gas sensor for NO2 detection
Karaduman, Irmak; Yıldız, Dilber Esra; Sincar, Mehmet M.; Acar, Selim (Elsevier Ltd, 2014)In the present study, UV light activated gas sensor was investigated for Al/Al2O3/p-Si and Al/TiO2/Al2O3/p-Si samplesby atomic layer deposition method (ALD). Generally, in order to obtain the sensing performance, traditional ...