I am an associate professor at the Department of Microelectronics, Faculty of Electronic Engineering and Technologies, Technical University of Sofia. My research is related to material science and technologies for micro- and nanoelectronic devices. My projects are in the field of fabrication and testing of flexible polymeric optoelectronic devices, application of different deposition methods for small molecule based electroluminescent layers, preparation and investigation of multilayer electroluminescent structures with organic semiconductors. I teach bachelor and master classes in the subjects “Material science for microelectronics”, “Displays”, “Nanomaterials”, “Thin films deposition processes”, “Manufacturing in electronic industry” and “MEMS Technology”.
Characterization of Piezoelectric Microgenerator with Nanobranched ZnO Grown on a Polymer Coated Flexible Substrate
Published in Applied Sciences
In this paper, results from the fabrication and study of a piezoelectric microgenerator using nanobranched zinc oxide (ZnO) film grown on poly(3,4-ethylenedioxythiphene) doped with a sulfonate (PEDOT:PSS)-coated flexible substrate are presented. The aim of the study is to extract information about the electrical behavior of the harvester at differe...
Piezoelectric energy harvesting device with nanobranched ZnO on Polymer/Metal/Polymer coated flexible substrate
This work reports about the fabrication of piezoelectric energy harvesting with ZnO nanostructure grown on polymeric based electrode. The piezoelectric film exhibits nanobranched morphology, which provide favorable conditions for dipoles orientation and thus the device is characterized with relatively low dielectric losses in the range of 0.4-3.9×1...
Flexible optoelectronic device with polymer based electrode on hybrimer substrate — Impact of the bending on the interfa...
In this study, novel flexible organic light-emitting diode structure (f-OLED) hybrimer/polymer/metal/polymer/emissive layer/metal was proposed. We studied the effect of the mechanical bending on its electro-optical behavior. The device contains polymeric based anode PEDOT:PSS/Au/PEDOT:PSS, where the conductive polymer was spray deposited on prelimi...
ELECTRICAL PARAMETERS EXTRACTION FOR PERFORMANCE ANALYSIS OF PEDOT:PSS BASED FLEXIBLE ORGANIC OPTOELECTRONIC DEVICES
Electrical behavior of PEDOT:PSS films was investigated for potential application as anode in ITO-free flexible organic optoelectronic devices. Current-voltage, capacitance-voltage, capacitance-frequency and contact resistance-bending cycles characteristics were measured at different electrodes architecture, as well as with and without post-deposit...
Associate Professor and Departamental Researcher Since 2015
Assistant professor and departmental researcher Since 2010
Dr 2007 - 2010
Interface optimization at molecular optoelectronic devices
MSc Engineering 2005 - 2007
Awards for Excellence – 2017 2017
“Outstanding Papers”, Highly commended paper in Microelectronics International“, Volume 33 number 1
“Key Scientific Article”, 2016 2016
Awarded from Advances in Engineering for paper in Microelectronic Engineering, Special Issue Micro/Nano Devices & Systems, vol. 145, art. no. 9805, pp. 112 – 116, 2015.