A5034589628- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Nanowire Synthesis and Applications
- Advancements in Semiconductor Devices and Circuit Design
- Silicon and Solar Cell Technologies
- Molecular Junctions and Nanostructures
- Semiconductor materials and interfaces
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Semiconductor materials and devices
- Polysaccharides Composition and Applications
- 2D Materials and Applications
- Nanotechnology research and applications
- Semiconductor Quantum Structures and Devices
- Quantum Dots Synthesis And Properties
- Advanced Memory and Neural Computing
- Magnetic properties of thin films
- Graphene research and applications
- Neural Networks and Reservoir Computing
- Rheology and Fluid Dynamics Studies
- Thermal properties of materials
- Surfactants and Colloidal Systems
Technical University of Munich
2015-2018
University of Rome Tor Vergata
2014-2015
University of Technology Malaysia
2009-2010
Many experimental measurements have been done on GNR conductance. In this paper, analytical model of conductance is presented. Moreover, comparison with published data which illustrates good agreement between them studied. Conductance as a one‐dimensional device channel parabolic band structures near the charge neutrality point improved. Based quantum confinement effect, in part structure, also temperature‐dependent displays minimum are calculated. Graphene nanoribbon (GNR) structure energy...
Solution-processed organic-based photodetectors (OPDs) provide the opportunity to develop innovative, low cost, and large-area imaging technologies for industrial applications. However, compared inorganic-based photodetectors, OPD devices have shown noticeably higher dark current relatively lower sensitivity which is critical when sensor needs detect signals under illumination intensities. Thus, improve design of OPDs, it very important know how opto-electrical response device limited...
ABSTRACT Material layers at electrode/semiconductor interfaces are fundamental for the photovoltaic properties of polymer solar cells. The relationship between open‐circuit voltage ( V OC ) and work function φ these interface is still a matter debate. Simulations, together with experiments on over more than 20 cell architectures based P3HT:PC 60 BM, enabled us to analyze physical dependence . In particular, when contacts well inside gap we observe that performance depends strongly even small...
The aim of this work is to present a consistent model for simulation organic solar cells (OPV) with correct description mobility, density state, organic-metal contacts, and exciton. We simulate the photoconversion by means an integration optical electrical part: light absorption calculated Transfer Matrix Model charge transport computed using Drift Diffusion approach including effect energetically disorder materials. Most parameters are directly taken from experiment. used study energetic...
Abstract Integration of light-trapping features and exploitation metal nanostructure plasmonic effects are promising approaches for enhancing the power conversion efficiency organic solar cells. These approaches’ on light absorption enhancement have been widely studied, especially in inorganic devices. While this concept can be transferred to devices, one has also consider nanostructure-induced electrical device performance, due fundamental difference semiconducting material properties...
In this paper, we report an investigation of the optical and electrical properties organic solar cell (OSC) with a back contact grating architecture through 3-D numerical simulations. By using finite-element methods for both transport properties, have modeled behavior OSC compared conventional planar structure. Based on these optoelectrical simulations, optimized grating, obtaining increment up to 17.5% in power conversion efficiency respect structured OSC. This enhancement is result...
By combining optical and drift-diffusion models, a comprehensive simulation of power conversion efficiency tandem solar cells is presented. To obtain consistent current-voltage characteristics polymer cells, the model takes into account correct description organic-metal interfaces organic semiconductor physics, in order to include effect energetic disorder. A generalized methodology developed which fully accounts for interplay between two subcells. The applied cell with different...
In this paper, we use circuit-level simulations to investigate the synchronization dynamics of spin torque oscillators (STOs) and demonstrate a pattern recognition scheme based on STO dynamics. We perform sensitivity analysis in order determine robustness different coupling methods, considering parameter variations, such as radius or thickness STOs. After pointing out advantages cross coupled architecture, for recognition. Several patterns are encoded resistive network successfully...
There are numerous theoretical approaches to estimating the power conversion efficiency (PCE) of organic solar cells (OSCs), ranging from empirical approach calculations based on general considerations thermodynamics. Depending level abstraction and model assumptions, accuracy PCE estimation complexity calculation can change dramatically. In particular, with a drift-diffusion (widely investigated in literature), strongly depends assumptions made for physical models optoelectrical properties...
The limitations on carrier drift velocity due to high-field effect and randomly vector in equilibrium is reported. results are based asymmetrical distribution function that converts randomness vectors zero-field streamlined one a very high electric field. ultimate found be appropriate thermal for given dimensionality non-degenerately doped silicon nanowires. However, the Fermi degenerately Other important parameter transport phenomena, nanoscale devices quantum confinement leads...
Our work deals with dynamic response of semitransparent organic photodetectors over a large frequency range for high and low light illumination intensities through performing detailed transient the device at pulsed photoexcitation green emission. We present systematic simulation based on drift diffusion approach to analyzing effect unbalance charge carrier mobility non-uniform absorption thin film photodetector device. result suggests engineering interface layers is critical achieve...