NIRPLANA

Near-Infrared Semiconductor Plasmonic Nanocrystals for Enhanced Photovoltaics

 Coordinatore FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA 

 Organization address address: VIA MOREGO 30
city: GENOVA
postcode: 16163

contact info
Titolo: Ms.
Nome: Alessandra
Cognome: Gastaldi
Email: send email
Telefono: +39 010 71781770
Fax: +39 010 71720321

 Nazionalità Coordinatore Italy [IT]
 Totale costo 193˙726 €
 EC contributo 193˙726 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2011-IEF
 Funding Scheme MC-IEF
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-05-16   -   2014-05-15

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA

 Organization address address: VIA MOREGO 30
city: GENOVA
postcode: 16163

contact info
Titolo: Ms.
Nome: Alessandra
Cognome: Gastaldi
Email: send email
Telefono: +39 010 71781770
Fax: +39 010 71720321

IT (GENOVA) coordinator 193˙726.80

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

photovoltaic    nc    cells    shape    semiconductor    plasmonics    scattering    expanding    cell    enhanced    performance    region    lspr    wavelength    wavelengths    thin    metal    nir    near    solar    film    plasmonic    infrared    surface    ncs    cu    xs    enhancement    spectral    nanocrystals    absorption    light   

 Obiettivo del progetto (Objective)

'Plasmonics is a hot and rapidly expanding research field. Of particular interest is the localized surface plasmon resonance (LSPR) observed in noble metal nanocrystals (NCs). It leads to strong light scattering and enhanced light-matter interaction. However, the LSPR of metal NCs is restricted to visible wavelengths, unless multipole resonances are enhanced via shape engineering of the NCs. Recently, two papers were published showing that copper-deficient semiconductor Cu2-xS(e) NCs can also exhibit a strong LSPR, in the near-infrared (NIR) spectral region. This exciting result both pushes the LSPR to longer wavelengths and allows plasmonics using semiconductor materials, which are transparent near the LSPR wavelength. The project aims at expanding this new field by focusing on the fabrication of a NIR photovoltaic cell with enhanced performance. This is achieved through incorporation of NIR plasmonics NCs, which allow improved absorption in the active layer via strong light scattering in NC thin film and an enhancement of the electric field near the NC surface. Two crucial steps need to be taken to achieve our goals. First, we need to further develop the synthesis of novel NIR plasmonic NCs. The focus lies here on a tuning of the spectral position and width of the LSPR by varying the Cu2-xS(e) material composition, size and shape, in order to optimize the NC scattering cross section and field enhancement at the desired NIR wavelength. Second, strategies will be developed to incorporate the plasmonic NCs into novel NC-based thin film photovoltaic cells. The device performance will be evaluated with and without plasmonic NCs, for different thin film configurations, in order to quantify the efficiency enhancement. Considering that our devices combine an improved absorption with an expansion of the photovoltaic response into the NIR, we expect that NC-based photovoltaics can offer a viable low-cost alternative to current solar cell technologies.'

Introduzione (Teaser)

EU-funded scientists are using plasmonic nanocrystals (NCs) to shift the light-harvesting spectrum of solar cells to the near-infrared region.

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