Search Results - "Kavasoglu, A. Sertap"

Design and implementation of a low-cost multi-channel temperature measurement system for photovoltaic modules by Eke, Rustu, Sertap Kavasoglu, A., Kavasoglu, Nese

“…► A low-cost computer-controlled temperature measurement setup has been developed. ► The data obtained were found to be reproducible and reliable. ► The…”
Get full text

Metal–semiconductor transition in undoped ZnO films deposited by spray pyrolysis by Kavasoglu, Nese, Sertap Kavasoglu, A.

“…ZnO films were deposited on glass substrate by using spray pyrolysis method. Films were deposited at different solution molarities 0.02 and 0.1 M. The films…”
Get full text

Intensity modulated short circuit current spectroscopy for solar cells by Kavasoglu, Nese, Sertap Kavasoglu, A., Birgi, Ozcan, Oktik, Sener

“…Understanding charge separation and transport is momentously important for the rectification of solar cell performance. To probe photo-generated carrier…”
Get full text

I–V–T analysing an inhomogeneous Au/Poly(4-vinyl phenol)/p-Si structure with a double Gaussian distribution of barrier heights by Pakma, Osman, Tozlu, Cem, Kavasoglu, Nese, Kavasoglu, A. Sertap, Ozden, Sadan

“…In this study, the current–voltage (I – V) characteristics of Au/Poly(4-vinyl phenol)/p-Si structures have been measured over a wide temperature range…”
Get full text

Electrical characterization of a-Si:H(n)/c-Si(p) structure by Sertap Kavasoglu, A., Birgi, Ozcan, Kavasoglu, Nese, Oylumluoglu, Gorkem, Osman Kodolbas, A., Kangi, Rifat, Yilmaz, Okan

“…► We have fabricated the state of art heterojunction diode structure. ► Interface state density of the device values vary between 10 14 eV −1 cm −2 and 10 13…”
Get full text

Tunnelling enhanced recombination in polycrystalline CdS/CdTe and CdS/Cu(In,Ga)Se2 heterojunction solar cells by Bayhan, Habibe, Kavasoğlu, A. Sertap

“…This article investigates the results of current–voltage measurements made at different temperatures on vacuum deposited ZnO/CdS/Cu(In,Ga)Se2 and CdS/CdTe…”
Get full text

Negative capacitance peculiarities in a-Si:H/c-Si rectifier structure by Kavasoglu, A. Sertap, Kavasoglu, Nese, Kodolbas, A. Osman, Birgi, Ozcan, Oktu, Ozcan, Oktik, Sener

“…Nontrivial negative capacitance (NC) effect, observed in a-Si:H/c-Si heterostructure devices, is discussed emphasizing the theoretical interpretation of…”
Get full text

Application of Beta model to heterojunction structure by Kavasoglu, A. Sertap, Kavasoglu, Nese

“…The diode ideality factor is an important parameter in the description of device’s electrical behavior. Our goal in this work is to find a practical procedure…”
Get full text

The illustrated brief application of defect distribution model for heterojunction device by admittance spectroscopy by Oylumluoglu, Gorkem, Kavasoglu, A. Sertap, Kavasoglu, Nese

“…► Admittance data are used to determine shallow or deep energy levels in heterojunction device. ► We have suggested new equivalent circuit for heterojunction…”
Get full text

The analysis of the charge transport mechanism of n-Si/MEH-PPV device structure using forward bias I– V– T characteristics by Sertap Kavasoglu, A., Yakuphanoglu, Fahrettin, Kavasoglu, Nese, Pakma, Osman, Birgi, Ozcan, Oktik, Sener

“…In this study, temperature dependent current–voltage ( I– V) measurements and investigation of the dc current transport mechanism of n-Si/MEH-PPV device have…”
Get full text

Fabrication and electrical characterization of Al/diazo compound containing polyoxy chain/p-Si device structure by Birel, Ozgul, Kavasoglu, Nese, Kavasoglu, A. Sertap, Dincalp, Haluk, Metin, Bengul

“…Diazo-compounds are important class of chemical compounds in terms of optical and electronic properties which make them potentially attractive for device…”
Get full text

Study of CdS/Cu(In,Ga)Se2 heterojunction interface using admittance and impedance spectroscopy by BAYHAN, Habibe, KAVASOGLU, A. Sertap

Get full text

Electrical characterization of Au/Pd/n-GaN/Pd/Au device structure in the radio frequency range by simulation study by Kavasoglu, A. Sertap, Kavasoglu, Nese, Oylumluoglu, Gorkem

“…► Au/Pd/n-GaN/Pd/Au device structure have been studied by simulation software. The software has been developed by our group. ► The anomalous peaks in the C–V…”
Get full text

Admittance spectroscopy of spray-pyrolyzed ZnO film by Kavasoglu, Nese, Kavasoglu, A. Sertap

“…A ZnO film was deposited using the spray pyrolysis method. The admittance spectroscopy method was used to establish the contributions to electrical behavior…”
Get full text

The circuit point of view of the temperature dependent open circuit voltage decay of the solar cell by Kavasoglu, A. Sertap, Kavasoglu, Nese, Oktik, Sener

“…The open circuit voltage decay (OCVD) technique has been used to determine the minority carrier lifetime. In this study, an experimental and analytical method…”
Get full text

A new method of diode ideality factor extraction from dark I–V curve by Kavasoglu, Nese, Kavasoglu, A. Sertap, Oktik, Sener

“…Most of the techniques have been developed to extract diode ideality factor utilize the one-exponential diode model. However, for a correct description of two…”
Get full text

Room-temperature interface state analysis of Au/Poly(4-vinyl phenol)/p-Si structure by Kavasoglu, Nese, Tozlu, Cem, Pakma, Osman, Kavasoglu, A. Sertap, Ozden, Sadan, Metin, Bengul, Birgi, Ozcan, Oktik, Sener

“…The Poly(4-vinyl phenol) insulator layer was grown by spin coating technique onto p-Si substrate. Diode ideality factor (n), insulator layer thickness (δ),…”
Get full text

AFORS-HET simulation for investigating the performance of ZnO/n-CdS/p-CdTe /Ag solar cell depending on CdTe acceptor concentration and temperature by Metin, Bengul, Kavasoglu, Nese, Kavasoglu, A. Sertap

“…In this study, a single junction dc photovoltaic solar cell simulation was carried out. ZnO/n-CdS/p-CdTe/Ag cell properties were investigated through the…”
Get full text

Study of CdS/Cu(In, Ga)Se 2 heterojunction interface using admittance and impedance spectroscopy by Bayhan, Habibe, Sertap Kavasoğlu, A.

“…The interface properties of an unusual CdS/Cu(In, Ga)Se 2 solar cell have been studied by admittance and impedance spectroscopy. The current transport in this…”
Get full text

Simulation for capacitance correction from Nyquist plot of complex impedance–voltage characteristics by Kavasoglu, A. Sertap, Kavasoglu, Nese, Oktik, Sener

“…The impression of series resistance on unipolar semiconductor device’s capacitance–voltage spectrum is discussed by conventional impedance and admittance…”
Get full text