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Ultra-High Precision Radiation Dosimetry via Laser Bleaching the Color Centers in Fast Recovery Optical Fiber Sensors
Ghahrizjani, Reza Taheri; Ameri, Mohsen; Jahanbakhsh, Hossein; Sadeghi, Hossein; Mohajerani, Ezeddin (Institute of Electrical and Electronics Engineers (IEEE), 2020-06-01)
High energy electromagnetic radiation or heavy charged particles are extensively used for medical treatment of certain cancers. Precise prediction or measurements of energy deposition of any types of radiation on tissue is...
Solvent selection for fabrication of low temperature ZnO electron transport layer in perovskite solar cells
Ahmadi, S. Hamideh; Ghaffarkani, Mashhood; Ameri, Mohsen; Safari, Nasser; Mohajerani, Ezeddin (Elsevier BV, 2020-08-01)
Zinc Oxide (ZnO) with an easy synthesis method, low processing temperature, and high charge carrier mobility has been considered as a proper electron transport layer (ETL) for perovskite solar cells. Herein, we investigate...
Performance evaluation of InAs/GaSb superlattice photodetector grown on GaAs substrate using AlSb interfacial misfit array
Korkmaz, Melih; Arikan, Bulent; Suyolcu, Y. Eren; ASLAN, BÜLENT; SERİNCAN, UĞUR (IOP Publishing, 2018-03-01)
We report on the growth and opto-electronic characterization of type-II InAs/GaSb superlattice (SL) mid-wavelength infrared pin photodetector grown on a GaAs substrate. AlSb interfacial misfit array was employed at the GaA...
Phenomenological morphology design of hybrid organic-inorganic perovskite solar cell for high efficiency and less hysteresis
Ameri, Mohsen; Ghaffarkani, Mashhood; Ghahrizjani, Reza Taheri; Safari, Nasser; Mohajerani, Ezeddin (Elsevier BV, 2020-02-01)
In this report, a modeling approach is employed to study the effect of the grain boundaries (GBs) and their electronic activity on the performance parameters of the perovskite solar cells (PSCs). Our model is based on the ...
Forward and reverse bias current-voltage characteristics of Au/n-Si Schottky barrier diodes with and without SnO2 insulator layer
GÖKÇEN, MUHARREM; ALTINDAL, ŞEMSETTİN; Karaman, M.; Aydemir, U. (Elsevier BV, 2011-11-01)
The effects of interfacial insulator layer, interface states (N-ss) and series resistance (R-s) on the electrical characteristics of Au/n-Si structures have been investigated using forward and reverse bias current-voltage ...
Direct growth of type II InAs/GaSb superlattice MWIR photodetector on GaAs substrate
SERİNCAN, UĞUR; Arikan, Bulent; Senel, Onur (Elsevier BV, 2018-08-01)
We report on the direct growth and characterization of type-II InAs/GaSb superlattice (T2SL) MWIR photodetector structure grown on a GaAs substrate by molecular beam epitaxy. The designed photodetector structure contains 1...
Mechanical and optical properties of SiO2 thin films deposited on glass
Simurka, Lukas; Ctvrtlik, Radim; Tomastik, Jan; Bektaş, Gence; Svoboda, Jan; Bange, Klaus (2018-09-01)
The optical and mechanical properties of amorphous SiO2 films deposited on soda-lime silicate float glass by reactive RF magnetron sputtering at room temperature were investigated in dependence of the process pressure. The...
Enhanced metal assisted etching method for high aspect ratio microstructures: Applications in silicon micropillar array solar cells
Baytemir, Gulsen; Çiftpınar, Emine Hande; Turan, Raşit (Elsevier BV, 2019-12-01)
A solar cell device, fabricated on high density array cylindrical pillars, enables photogenerated carrier collection in the radial direction, thus shortening the path length of the carriers reaching the junction. It also p...
Aluminum induced texturing of sandy and prism glasses: Combination of micro/nano texture with macro texture
Ünal, Mustafa; Demircioglu, Zeynep; Donerscark, Ergi; Ozkol, Engin; Turan, Raşit (2017-08-01)
Aluminum induced texturing (AIT) is one of the most promising texturing methods, which can be applied on glass substrates for solar cell applications. Combination of different dimensional structures exhibits the opportunit...
Angular Dependence of Solar Cell Parameters in Crystalline Silicon Solar Cells Textured with Periodic Array of Microholes
Altinoluk, Serra; Kumar, Naveen; Çiftpınar, Emine Hande; Demircioglu, O.; Turan, Raşit; Vasileska, Dragica (2020-09-01)
Surface texturing is an indispensable way of increasing absorption in solar cells. In order to properly characterize the effect of texturing, the angular dependence of the incidence light should be addressed. This is parti...