Yazar "Kulakçı, Mustafa" için listeleme
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An Alternative Metal-Assisted Etching Route for Texturing Silicon Wafers for Solar Cell Applications
Es, Fırat; Kulakçı, Mustafa; Turan, Raşit (IEEE-Inst Electrical Electronics Engineers Inc, 2016)Metal-assisted etching (MAE) can be used to form antireflective and light-trapping structures on crystalline silicon solar cells. This method has been widely used to form nanowires and nanoholes on their surfaces. In this ... -
Effect of Au on the crystallization of germanium thin films by electron-beam evaporation
Eygi, Zeynep Deniz; Kulakçı, Mustafa; Turan, Raşit (Elsevier Science BV, 2014)Metal induced crystallization is a widely used method to form crystalline/polycrystalline structures at low temperatures. In this work, Au was applied to enhance the crystallization of amorphous Ge films. Ge films with ... -
Effects of gold-induced crystallization process on the structural and electrical properties of germanium thin films
Kabaçelik, İsmail; Kulakçı, Mustafa; Turan, Raşit; Ünal, Nuri (Wiley, 2018)Gold-induced (Au-) crystallization of amorphous germanium (-Ge) thin films was investigated by depositing Ge on aluminum-doped zinc oxide and glass substrates through electron beam evaporation at room temperature. The ... -
Growth, Fabrication and Characterization of Quantum Dot Intermediate Band Solar Cell
Serincan, Uğur; Kuru Mutlu, Hülya; Kulakçı, Mustafa (Gazi University, 2017)Stacked layers of self-assembled InAs quantum dots were synthesized within the base region close to the back surface field of GaAs single junction n- on p-solar cell. The solar cell structure was grown epitaxially on p-type ... -
Investigation of silver-induced crystallization of germanium thin films fabricated on different substrates
Kabaçelik, İsmail; Kulakçı, Mustafa; Turan, Raşit (Elsevier Science BV, 2015)Silver-induced crystallizations of amorphous germanium (alpha-Ge) thin films were fabricated through electron beam evaporation on crystalline silicon (c-Si) (100), aluminum-doped zinc oxide (AZO), and glass substrates at ... -
Multi-crystalline silicon solar cells with metal-assisted nano-texturing using HNO3 as hole injection agent
Es, Fırat; Baytemir, Gülsen; Kulakçı, Mustafa; Turan, Raşit (Wiley-V C H Verlag GMBH, 2016)In this study, metal-assisted etching (MAE) with nitric acid (HNO3) as a hole injecting agent has been employed to texture multi-crystalline silicon wafers. It was previously proven that addition of HNO3 enabled control ... -
Performance of solar cells fabricated on black multicrystalline Si by nanowire decoration
Es, Fırat; Çiftpinar, Emine Hande; Demircioğlu, Olgu; Gunoven, Mete; Kulakçı, Mustafa; Turan, Raşit (Elsevier Science BV, 2015)Vertically aligned Si nanowire (NW) arrays fabricated by metal-assisted etching technique were applied to industrial sized (156 mm x 156 mm) multicrystalline Si cells as an anti-reflective (AR) medium. The NW lengths ... -
The quantum confined Stark effect in silicon nanocrystals
Kulakçı, Mustafa; Serincan, Uğur; Turan, Raşit; Finstad, Terje G. (IOP Publishing LTD, 2008)The quantum confined Stark effect (QCSE) in Si nanocrystals embedded in a SiO(2) matrix is demonstrated by photoluminescence (PL) spectroscopy at room and cryogenic temperatures. It is shown that the PL peak position shifts ... -
Structural and electrical analysis of poly-Ge films fabricated by e-beam evaporation for optoelectronic applications
Kabaçelik, İsmail; Kulakçı, Mustafa; Turan, Raşit (Elsevier Sci LTD, 2016)We have investigated the relationship between structural and electrical properties of Ge thin films deposited on single crystal silicon (100) substrates by electron beam evaporation at room temperature. Post-thermal annealing ...
