ABOUT US


The Centre for Hybrid and Organic Solar Energy (CHOSE) was founded in 2006 from the will of the Lazio Region and the University of Rome Tor Vergata to create a center of excellence in the field of next-generation photovoltaics.

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CENTRE FOR HYBRID AND ORGANIC SOLAR ENERGY - CHOSE

The Centre for Hybrid and Organic Solar Energy (CHOSE) was founded in 2006 from the will of the Lazio Region and the University of Rome Tor Vergata to create a center of excellence in the field of next-generation photovoltaics. CHOSE is distributed across several laboratories, both within the University Campus of Tor Vergata and the Technopole Tiburtino. The latter consists of a 400 square meter laboratory that houses equipment for the fabrication and characterization of organic, hybrid, dye sensitized and perovskite photovoltaic cells, modules and panels and 150 square meters of office space for the incubation of spin-offs generated from research at CHOSE. The other laboratories, totalling roughly 300 square meters in extension, are located within different departments of Tor Vergata. At CHOSE there work more than 30 researchers including graduate students, postdocs and staff. CHOSE has also many collaborations at the regional, national and international levels.

The main objectives of CHOSE consist in the development of fabrication processes for organic and hybrid organic / inorganic solar devices, the definition of a process for the industrialization of these innovative photovoltaic technologies, the technological transfer of these and the development of photovoltaic applications in collaboration with companies at both the domestic and international level.

CHOSE Team photo

CHOSE also proposes itself as a reference point for photovoltaic technologies and their applications. In particular, in order to develop specific knowledge within the fields of both conventional and innovative photovoltaics and to prepare profiles of workers that are able to operate over the whole photovoltaic value chain, CHOSE manages a Masters degree course on "Photovoltaic Engineering" and an International School called ISOPHOS dedicated to PhD students and researchers.

After 9 years of operation, CHOSE has trained more than 100 profiles among undergraduates, masters students, PhD students, post-docs and has contributed to the spread of photovoltaic concepts also in primary and secondary schools. These actions have enabled CHOSE to capitalize on the intellectual potential present in the region and to mitigate the phenomenon of the brain drain that is dangerously undermining the innovation capacity of the Italian system.

At the international level, CHOSE is part of the European Energy Research Alliance (EERA), the largest European platform for the development of research and technologies in the energy field and is a member of the famous Graphene Flagship, the most important European research action on graphene and related materials. Since its founding, CHOSE has participates or has participated in more than 10 European projects.

As mentioned, the main purpose of CHOSE, in addition to innovation in the field of photovoltaics, consists in the technology transfer of research developed within its laboratories. This is typically done by creating spin-off of public-private consortia or through direct cooperation with other SMEs or large companies.

Through such technology transfer actions, CHOSE has spun-off four companies (Dyers Ltd., Intellienergia Ltd., TiberLab Ltd., and Ingem Ltd.) that operate at various levels, in the design and realization of photovoltaic systems and in related technologies. The spin-offs altogether employ more than 20 people, mostly under 40s. CHOSE is also currently in the process of founding a new spin-off dedicated to the development of applications in the field of flexible photovoltaics.

CHOSE, as the University of Rome "Tor Vergata", is also a member of the public-private consortium "Dyepower" together with the company "Permasteelisa", which is world leader in the field of glass facades for building integration, and the universities of Ferrara and Turin. The objective of the Consortium concerns the development of a technological process and a pilot line for the production of photovoltaic panels on glass with Dye Solar Cell (DSC) technology, aimed at Building Integrated Photovoltaics (BIPV) architectural applications. The characteristics of high translucence, good colour control and architectural integration, make DSC photovoltaics an ideal technology not only for integration outdoors under the sun but also indoors under artificial lighting.

 
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FACILITIES

facilities

PRESS REVIEW

press review

ISOPHOS

Isophos 2019 Banner

The 19th edition of the International School on Hybrid and Organic Photovoltaics (ISOPHOS®) will be held from the 2nd till 6th of September 2019 in the wonderful atmosphere of Castiglione della Pescaia (Italy)

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DISCOVERPLACES

CHOSE e discoverplaces.travel

CHOSE has joined with discoverplaces.travel to show the wonders found in our area.

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MASTER MIF

logo MIF

CHOSE organizza in collaborazione con l'Università degli Studi di Roma Tor Vergata e l'associazione FREEnergy un Master di II livello in "Ingegneria del Fotovoltaico" .

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logo University of Rome Tor Vergata
Università degli Studi di Roma
"Tor Vergata"


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IMPORTANCE OF FERROELECTRIC DOMAINS

importance of ferroelectric domains for the performance of perovskite solar cells

On the importance of ferroelectric domains for the performance of perovskite solar cells

The effect of ferroelectric polarization patterns in MAPbI3 on JV characteristics has been analyzed. We discuss models for the polarization orientation pattern and magnitude of the ferroelectric domains. Simulations performed on real patterns show that the presence of ordered ferroelectric domains, even with a weak characteristic polarization magnitude enhances the power conversion efficiencies and are mandatory to reproduce the experimental J-V characteristics.

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CRYSTAL ENGINEERING APPROACH

A Crystal Engineering approach for perovskite solar cells and modules fabrication out of the glove box

A Crystal Engineering approach for perovskite solar cells and modules fabrication out of the glove box

we fabricated high efficiency perovskite solar cells (PSC) and perovskite solar modules (PSM) utilizing several Hole Transport Layers (HTLs). The results show that the Crystal Engineering approach remarkably improved the device performance reaching a power conversion efficiency of 17%, 16.8% and 7% for spiro-OMeTAD, P3HT and HTL free, respectively.

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FULLY-SPRAYED FLEXIBLE

fully-sprayed flexible polymer solar cells with a cellulose-graphene electrode

Fully-sprayed flexible polymer solar cells with a cellulose-graphene electrode

Light, flexible and low-cost organic solar cells made entirely by spray and with an innovative cellulose and graphene-based electrode! The work, in collaboration with the Smart Materials group of the ISTITUTO ITALIANO DI TECNOLOGIA has been published on the important magazine "Materials Today Energy".

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UNDER INDOOR ILLUMINATION

Highly efficient perovskite solar cells for light harvesting under indoor illumination via solution processed sno2/mgo composite electron transport layers

Highly efficient perovskite solar cells for light harvesting under indoor illumination via solution processed sno2/mgo composite electron transport layers

A new architectures in CH3NH3PbI3 based planar perovskite solar cells incorporating solution processed SnO2/MgO composite electron transport layers that show the highest power outputs ever reported under typical 200–400 lx indoor illumination conditions.

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SOLAR CELLS ON PAPER

perovskite solar cells on paper and the role of substrates and electrodes on performance

Perovskite solar cells on paper and the role of substrates and electrodes on performance

The first perovskite solar cell (PSC) fabricated directly on a paper substrate with a maximum power conversion efficiency of 2.7% is here reported.

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APOCAROTENOIDS PIGMENTS

photoelectrochemical and spectrophotometric studies on dye-sensitized solar cells (dscs) and stable modules (dscms) based on natural apocarotenoids pigments

Photoelectrochemical and spectrophotometric studies on dye-sensitized solar cells (dscs) and stable modules (dscms) based on natural apocarotenoids pigments

We present a study on dye-sensitized solar cells (DSCs) and we fabricate dye-sensitized solar modules (DSCMs) based on natural apocarotenoids extracted from the achiote's seeds (annatto). Use of less polar solvent such as diethyl ether improves the bixin concentration in the annatto extract which, was employed as sensitizer in the devices.

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PEROVSKITE SOLAR MODULES

Perovskite Solar Modules with 95% Aperture Ratio

Fully laser processed Perovskite Solar Cell modules with 95% Aperture Ratio

Laser patterning has been applied to realize Perovskite solar modules with a ratio between active and total substrate area of 95% and an efficiency of 9.3%. These values are new records for large area (14.5 cm2) fully laser processed perovskite devices. This work signs a forward step to the industrialization of perovskite based solar technology. Results have been published on IEEE Journal of Photovoltaics DOI: 10.1109/JPHOTOV.2017.2732223

GRAPHENE-PEROVSKITE

Graphene-Perovskite Solar module with efficiency 12.6%

Graphene-Perovskite Solar module with efficiency 12.6% on 50 cm2

Graphene interface engineering (GIE) is proposed as an effective way to boost efficiency in Perovskite solar cells and modules. A record efficiency of 12.6% on 50 cm2 module active area has been achieved by introduce Graphene in the mesoporous TiO2 and lithium neutralized graphene oxide (GO-Li) at the mTiO2/perovskite.
Results have been published on ACS Energy Lett. 2017, 2, 279−287

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REDUCED GRAPHENE OXIDE

Reduced Graphene Oxide

Reduced Graphene Oxide as Efficient and Stable Hole Transporting Material in Mesoscopic Perovskite Solar Cells
Nano Energy
DOI: 10.1016/j.nanoen.2016.02.027

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PEROVSKITE MODULE

perovskite module

We fabricated the first perovskite-based monolithic series-type module showing very promising results in terms of the power conversion efficiency, the reproducibility of the fabrication process and long-term stability.

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PEROVSKITE SOLAR CELLS

We fabricated perovskite based solar cells using CH3NH3PbI3-xClx with different hole transporting materials such as Spiro-OMeTAD and P3HT.

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SDSC MODULE

We fabricated the first solid state dye solar cell (SDSC) module using poly(3-hexilthiophene) (P3HT) as Hole Transport Material for the dye regeneration process.

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A COATING FOR ALL

Fully sprayed polymer solar cell modules open the way to bring Photovoltaics nominally everywhere, thanks to spray coating conformability to virtually any kind of substrate.

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GREENHOUSE

THE PHOTOVOLTAIC GREENHOUSE

We have demonstrated the feasibility of the fabrication of a photovoltaic greenhouse roof by using techniques based on solution processing (spray coating and screen printing).

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