CITYSOLAR - ENERGY HARVESTING IN CITIES WITH TRANSPARENT AND HIGHLY EFFICIENT WINDOW-INTEGRATED MULTI-JUNCTION SOLAR CELLS (DFM.AD003.390)

Area tematica

Scienze fisiche e tecnologie della materia

Area progettuale

Struttura responsabile del progetto di ricerca

Istituto di struttura della materia (ISM)

Responsabile di progetto

ALDO DICARLO
Telefono: 06 49934155
E-mail: aldo.dicarlo@ism.cnr.it

Abstract

In the CITYSOLAR project, a new breakthrough concept for transparent photovoltaics (TPV) will be developed by exploiting the combined use of emerging technologies, namely multi-junction solar modules developed from near- ultraviolet perovskite and near-infrared organic solar cells. Using advanced concepts within light management such
as photonic crystals, nanophotonics and photon recycling and advanced module integration schemes, CITYSOLAR will radically change performance limits for TPV by significantly reducing losses related to light absorption and scale-up from individual solar cells to multi-junction modules. CITYSOLAR brings together world-leading European academic and industrial players, some with key intellectual property, together with two non-EU partners belonging
to Mission Innovation countries specialized in the synthesis of advanced materials for hybrid and organic solar cells. The consortium will develop highly efficient and transparent solar cells and modules to increase the performance of available TPV technologies by 50%, and via innovative integration schemes present a route for its use in building integrated PV (BIPV) applications.

Obiettivi

CITYSOLAR's main objective is to develop lightweight transparent photovoltaic cells and modules with high average visible transparency (AVTe50), a well beyond state-of-art efficiency e 15%, and colour neutrality control by combining, in a multijunction fashion, a top Near UltraViolet (NUV) halide perovskite and a bottom Near InfraRed (NIR) polymeric photovoltaic cell, exploiting advanced concepts of light management such as photonic crystals, nanophotonics and photon recycling. The photovoltaic modules will be fabricated independently on rigid or flexible substrates and then laminated together with proper interlayers to fabricate a 2 terminal multi-junction structure. The innovative TPV concept will be demonstrated also at the module level on an area larger than 100 cm2. The 2T configuration will be realized by employing the innovative scheme module-level bus-bar connection (MOLBAC), which solves the issues related to the balancing between the top NUV absorbing module and the bottom NIR absorbing module. The transparent large area module will be integrated on a BIPV element and its functionality will be demonstrated.

Data inizio attività

01/12/2020

Parole chiave

Transparent photovoltaics, Building Integrated PhotoVoltaics (BIPV), III-Generation photovoltacs

Ultimo aggiornamento: 02/01/2025