Research

Our research is concentrated on the design and production of new excitonic solar cells, combining radically new materials with novel architectures.

Specific topics related to photovoltaic cells and nanotechnology are listed below:
The interface and the interaction of hybrid Organic/ Inorganic Molecular Materials.
Enhancing the efficiency of excitonic solar cells through the design of the working electrode.
Design and control the inorganic sensitizer structure and properties in order to improve the PV parameters.
New excitonic solar cells structures/architectures.

Carbon based perovskite solar cells

This cell type offers a low cost, upscalable and highly stable alternative to some of the more commonly researched perovskite cell types. In our study we use screen-printed, carbon based cells as a platform for the investigation of new formulations and structures that have the potential to deliver specifically desired parameters in our solar devices.

Project responsible:  Avi Schneider

Emission from dispersions of hybrid organic-inorganic nanostructures

In this project we concentrate on the development of synthetic routs to confine the organic-inorganic perovskite structure to the nano scale. These confined perovskite structures give rise to quantum effects that can be useful for the fabrication of perovskite-based light emitting diodes and other optoelectronic applications.

Project Responsible: Sigalit  Aharon

Inorganic perovskite nanostructures

This research project concentrates on the  nano-forms of perovskite, in particular all-inorganic perovskite nanostructures. We concentrate on controlling the size and the shape of the all inorganic perovskite nanostructures while introducing new chemistry to the nano scale perovskite. 

Project Responsible: Daniel Amgar, Tal Binyamin

Nb - doped TiO2 based solar cells

This research concentrate on sensitizing of Nb+ doped TiO2 nanoparticles and their application in photovoltaics. right shown TEM image of Nb+ doped anatase TiO2 nanoparticles with bipyramidalshape (up to ~ 30 nm diameter).

Project Resposible: Ivan Tugov   

Quasi two dimensional (2D) perovskite based solar cells

 

In this project we take advantageous of the possibility to tune the perovskite dimensionality using long organic cation which separate the MX6 layers of the perovskite.  Typically, the organic cation has low dielectric constant while the metal halide has higher dielectric constant. 

This family of materials permits tuning of optical and electrical properties by changing either the organic or the inorganic component, or their relative abundance. 

Recently our quasi 2D perovksite based solar cells achieved high efficiency and high open circuit voltage

 

Project responsible: Bat-El Cohen, Adva Shpatz, Shir Yudco

 

Semi-transparent perovskite based solar cells

An interesting and important property of the perovskite is the possibility to make it transparent, thus enabling fabrication of semi-transparent solar cells. 

This project concentrate  on semi-transparent perovskite solar cells, based on a method, in which self-assembled perovskite precursor solution forms a transparent grid structure.

Project responsible: Stav Rahmany