Perovskite can be used to fabricate solar cells and LEDs.

In this project we manufacture dual functionality devices that can function as both solar cells and LEDs. We investigate the influence of different fabrication steps. on the device performance as an LED vs solar cell.

Project responsible: Shir Yudco

The ITO perovskite solar cell structure consists of triple-oxide screen-printed mesoporous layers. This unique structure has several advantageous, such as enhanced stability and renewability comparing to the other screen-printed structure with carbon counter electrode. In addition to the simple and scalable fabrication method, this solar cell structure is a good candidate for large-scale production. This structure can reach 15.3% efficiency, and we are working on enhancing it by inserting gold nano particles to the lab-made ITO printing paste, and adding a hole transport layer layer to the structure.

Study the influence of formammidinium iodide (FAI) and formammidinium bromide (FABr) post deposition treatment in mixed cation mix halide perovskite composition of Cs_xFA_1-xPb(I_1-xBr_x)₃. We found that halide exchange process occurs during the dipping, where iodide and bromide ions are incorporated into the solid perovskite phase causing structural changes. The changes in the perovskite lattice becoming more significant as the bromide incorporation become more dominant. The effect of halide exchange in the perovskite solar cells was study on a complete device. We showed that as the FABr ratio increase the overall solar cell performance decrease due to the structural changes that cause partial distortion of the perovskite lattice.

Project Resposible: Stav Rahmany  

Due to their remarkable optical and physical properties perovskite nanoparticles (PeNPs) are intensively investigate in the past years. PeNPs characterized with high photoluminescence quantum yield (PLQY), narrow full width half maximum of emission and tunable band gap. These properties enable to use PeNPs in light emitting diodes (LEDs), lasers, sensors, and photodetectors.

In our lab we are synthesizing, characterizing and studying perovskite nano-structures. We are taking the research one step ahead by fabrication of unique nano- structures based on perovskite nano particles and study interactions within the structures, self-assembly processes, and changes in optical properties of those structures.

Project Responsible: Tal Binyamin

Materials with self-healing capabilities have been in development for years and are used for a variety of useful applications that require stability and healing capabilities over time. Most of the existing materials are macroscopic materials based on complex and in some cases expensive external additions. In this project we are developing nanoparticles with a full inorganic composition in the form of Cs₂ZnX₄ (X= Cl, Br) that can perform healing at the microscopic level. These nanoparticles are semiconductors and can be used in a variety of different optoelectronic applications that require stability and durability over time at the atomic level. Moreover, these compositions are low-toxic and environmentally friendly, which makes it a promise in the field of semiconductors.

Project Responsible:  Ben Aizenshtein

We explore the influence of the cations/halides on the functionality of the perovskites as HTL in the solar cell. Does the perovskite composition influence its functionality? We focus on the cations and study their influence following compositions: FA_zMA_yCs_1-y-zPbI_xBr_3-x

Project responsible: Adva Shpatz

The layers of Perovskite solar cells are usually prepared by the spin-coating method. The thermal evaporation method suggests the formation of a uniform layer, avoiding the use of solvents and solubility issues, and enables the synthesis of perovskite solar cells in a broad scale. In this project we are aiming to develop a fully evaporated perovskite using different elements.

Project responsible: Tehila Matas

The company aims to develop the next generation of fully printableThe company aims to develop the next generation of fully printable perovskite solar cells perovskite solar cells.

For the company website, please click here

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, Naresh Pendyala

Transparent solar cells can be used for different applications, such as glasses or windows. Usually, the transparent solar cells are less efficient due to their wide band gap. In this project we studied several perovskites and other materials to get transparent solar cells

Project responsible: Tehila Matas

Zero-dimensional inorganic perovskites has the general chemical formula of Cs₄PbX₆ (X = Cl^–, Br^–, or I^–), those materials have high percent of PLQY (photoluminescence quantum yield) due to strong quantum-confined environment that stems from the isolation of [PbBr₆]^4– octahedra clusters from one another by the surrounding monovalent metal ions. We are working on using this unique property in LED (light-emitting diode) devices to achieve emitting device.

Project responsible:  Adva Shpatz