Electrical and photo-elctrical properties on n-Cds/CuS and n-Cds/p-Si heterojunction devices and solar cells.

1985
Erçelebi, Çiğdem

Suggestions

Electroformed silicon nitride based light emitting memory device
ANUTGAN, TAMİLA; ANUTGAN, MUSTAFA; ATILGAN, İSMAİL; Katircioglu, Bayram (2017-07-31)
The resistive memory switching effect of an electroformed nanocrystal silicon nitride thin film light emitting diode (LED) is demonstrated. For this purpose, current-voltage (I-V) characteristics of the diode were systematically scanned, paying particular attention to the sequence of the measurements. It was found that when the voltage polarity was changed from reverse to forward, the previously measured reverse I-V behavior was remembered until some critical forward bias voltage. Beyond this critical volta...
Mathematical model development of the anti torque system of a notar helicopter
Bakır, Hüseyin Murat; Yavrucuk, İlkay; Department of Aerospace Engineering (2008)
The anti-torque mechanism of a NOTAR helicopter is a complex system including vertical tail and pressurized tail boom which provides air ejection used for both circulation control around the boom and creating directed jet air at the end of the boom. This thesis targets the modeling of this mechanism and integrating it to a helicopter simulation model. Flight tests are performed on the MD 600N helicopter to verify the results. Finally, the simulation is compared with flight test data.
Rational molecular design enables efficient organic solar cells and organic light emitting devices
Alemdar Yılmaz, Eda; Çırpan, Ali; Toppare, Levent Kamil; Department of Chemistry (2022-12-26)
Organic conjugated polymers and organic small molecules have great potential to meet one of the world's most critical challenges, clean energy production, in the following decades. Owing to their semiconducting properties, organic conjugated molecules are promising candidates for clean energy applications such as organic solar cells (OSCs) and organic light-emitting diodes (OLEDs) due to their low cost, lightweight, and flexibility. This study covers the rational molecular design for efficient OLEDs and OSC...
Electrochromic and photovoltaic applications of conjugated polymers
Apaydın, Doğukan Hazar; Toppare, Levent Kamil; Department of Polymer Science and Technology (2012)
Three new azobenzene containing conjugated monomers were designed and synthesized. Resulting monomers were characterized by means of 1H NMR and 13C NMR techniques. Monomers (E)-1,2-bis(4-(thiophen-2-yl)phenyl)diazene (M1), (E)-1,2-bis(4-(4-hexylthiophen-2-yl) phenyl) diazene (M2) and (E)-1,2-bis(2-fluoro-4-(4-hexylthiophen-2-yl)phenyl) diazene (M3) were electrochemically polymerized using cyclic voltammetry to give polymers P1, P2 and P3. The polymers were subjected to spectroelectrochemical and kinetic stu...
Aerothermodynamic modeling and simulation of gas turbines for transient operating conditions
Koçer, Gülru; Uzol, Oğuz; Department of Aerospace Engineering (2008)
In this thesis, development of a generic transient aero-thermal gas turbine model is presented. A simulation code, gtSIM is developed based on an algorithm which is composed of a set of differential equations and a set of non-linear algebraic equations representing each gas turbine engine component. These equations are the governing equations which represents the aero-thermodynamic process of the each engine component and they are solved according to a specific solving sequence which is defined in the simul...
Citation Formats
Ç. Erçelebi, “Electrical and photo-elctrical properties on n-Cds/CuS and n-Cds/p-Si heterojunction devices and solar cells.,” Ph.D. - Doctoral Program, Middle East Technical University, 1985.