Yayıncı "Pergamon-Elsevier Science Ltd" Fizik Bölümü Koleksiyonu için listeleme
Toplam kayıt 15, listelenen: 1-15
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A comparison of the effect of CdCl2 and MgCl2 processing on the transport properties of n-CdS/p-CdTe solar cells and a simple approach to determine their back contact barrier height
(Pergamon-Elsevier Science Ltd, 2016)A simple approach, which can estimate the barrier height of non-Ohmic back contacts for CdS/CdTe solar cell by using its temperature dependent forward biased current-voltage data, is explained. The method involves modelling ... -
A different approach to solar cell simulation
(Pergamon-Elsevier Science Ltd, 2015)Zero barrier height inhomogeneity in the device is generally assumed to conform to Gaussian distribution in the literature. In this study, zero barrier height inhomogeneity has been adopted to obey random distribution. ... -
Forward and reverse current-voltage-temperature characteristics of a typical BPW34 photodiode
(Pergamon-Elsevier Science Ltd, 2006)The dark forward and reverse current-voltage characteristics of a typical BPW34 silicon photodiode have been investigated in the temperature range 80-300 K. We propose that tunnelling enhanced recombination at or close to ... -
Investigation of datasheet provided temperature coefficients of photovoltaic modules under various sky profiles at the field by applying a new validation procedure
(Pergamon-Elsevier Science Ltd, 2020)In this study, datasheet provided temperature coefficients of commercially available photovoltaic modules were investigated by taking into account the actual performance parameters (output peak power, short-circuit current ... -
Lattice vibrations of pure and doped GaSe
(Pergamon-Elsevier Science Ltd, 2006)The Bridgman method is used to grow especially undoped and doped single crystals of GaSe. Composition and impurity content of the grown crystals were determined using X-ray fluorescence (XRF) method. X-ray diffraction, ... -
New method for computing single diode model parameters of photovoltaic modules
(Pergamon-Elsevier Science Ltd, 2018)The objective of this paper is to calculate the single diode model parameters (A, R-s, R-sh, I-L, and I-0) of photovoltaic modules in most straightforward way no using iterative techniques and an additional information of ... -
A new method to simulate photovoltaic performance of crystalline silicon photovoltaic modules based on datasheet values
(Pergamon-Elsevier Science Ltd, 2017)Determination of photovoltaic performance based on single diode model and various methods requires iterative techniques, additional mandatory information and users with a certain level of knowledge. Further, the most of ... -
Observation of negative photoconductivity in (ZnO)(x)(CdO)(1-x) films
(Pergamon-Elsevier Science Ltd, 2009)In this study, (ZnO)(x)(CdO)(1-x) films were prepared by ultrasonic spray pyrolysis (USP) technique at a substrate temperature of 400 degrees C. X-ray diffraction patterns of the films indicate that the (ZnO)(x)(CdO)(1-x) ... -
Performance analysis of a multi crystalline Si photovoltaic module under Mugla climatic conditions in Turkey
(Pergamon-Elsevier Science Ltd, 2013)Commercially available, a multi crystalline silicon (mc-Si) photovoltaic (PV) module has been monitored outdoors under Mugla climatic conditions in Turkey. Electricity yield of this module is calculated from the uninterruptible ... -
Performance comparison of a double-axis sun tracking versus fixed PV system
(Pergamon-Elsevier Science Ltd, 2012)In the present study, performance results of two double axis sun tracking photovoltaic (PV) systems are analyzed after one year of operation. Two identical 7.9 kWp PV systems with the same modules and inverters were installed ... -
A practical and effective strategy for the thin and uniform carbon layer onto LiCoPO4 cathode surface in terms of the rate capability and cycle stability
(Pergamon-Elsevier Science Ltd, 2016)Nanoscale pure LiCoPO4 and LiCoPO4/C materials were successfully synthesized as excellent quality cathode materials for high-voltage and high energy density lithium-ion applications. These materials are simply produced by ... -
Shading effect on the energy rating of two identical PV systems on a building facade
(Pergamon-Elsevier Science Ltd, 2015)The first BIPV system of Turkey was installed on the facade and two towers of the Staff's Block of Education Faculty building of Mugla Sitki Kocman University in February 2008. The PV systems cover 405 m(2) (60 tilted ... -
Simulation for capacitance correction from Nyquist plot of complex impedance-voltage characteristics
(Pergamon-Elsevier Science Ltd, 2008)The impression of series resistance on unipolar semiconductor device's capacitance-voltage spectrum is discussed by conventional impedance and admittance analysis, and it is shown that series resistance may cause large ... -
Tunnelling enhanced recombination in polycrystalline CdS/CdTe and CdS/Cu(In,Ga)Se-2 heterojunction solar cells
(Pergamon-Elsevier Science Ltd, 2005)This article investigates the results of current-voltage measurements made at different temperatures on vacuum deposited ZnO/CdS/Cu(In,Ga)Se-2 and CdS/CdTe heterojunction solar cells. We propose that the current-voltage ... -
What do we need for the lithium-air batteries: A promoter or a catalyst?
(Pergamon-Elsevier Science Ltd, 2016)LaSr-based perovskite materials are frequently studied as catalyst at the cathode of the lithium-air batteries (LAB). In this study, we compared Pb, Ba and Sr in the form of La0.65X0.35MnO3 (X = Pb, Ba, Sr) at the cathode ...