Rizwan Ahmed

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Description of cover page picture/figure: Test Sample: InP nanowires on an InP substrate iii Acknowledgments All Praise and Thanks to ALLAH ALMIGHTY, the most BENEFICIENT & the most MERCIFUL, WHO made all this possible for us. First of all we would like to thank our supervisor Håkan Pettersson for giving us the opportunity to work in this interesting and(More)
The appearance of surface-induced phases of molecular crystals is a frequently observed phenomenon in organic electronics. However, despite their fundamental importance, the origin of such phases is not yet fully resolved. The organic molecule 6,6′-dibromoindigo (Tyrian purple) forms two polymorphs within thin films. At growth temperatures of 150 °C, the(More)
The influence of the nature of interface between organic semiconductor and gate dielectric on bias stress electrical stability of n-type C60-based organic field effect transistors (OFETs) was studied. The bias stress induced threshold voltage (Vth) shift was found to depend critically on the OFET device structure: the direction of V(th) shift in top-gate(More)
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