A cost-effective lateral beam splitting photovoltaic system coupling a Si cell and a InGaAs photodiode through a long-pass dichroic filter has been designed, manufactured and tested under illumination with a Sun simulator and direct solar irradiation. Two filters with different cut-off wavelengths have been considered: 950nm and 1100nm, best efficiencies are achieved with the 950nm cut-off one due to lower reflectance losses in the high energy spectral range. The system, read-out in two-terminal configuration both in parallel and in series, proved to double the efficiency of the Si cell alone in case of high air masses.
Characterization of a Si/InGaAs lateral beam splitting photovoltaic system / Calastrini, S.; Baldi, Andrea; Carnevale, ENNIO ANTONIO; Ciani, Lorenzo; Catelani, Marcantonio; Bruzzi, Mara. - STAMPA. - (2017), pp. 1-5. (Intervento presentato al convegno 2017 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2017 tenutosi a Torino; Italy nel 22 May 2017 through 25 May 2017) [10.1109/I2MTC.2017.7969926].
Characterization of a Si/InGaAs lateral beam splitting photovoltaic system
BALDI, ANDREA;CARNEVALE, ENNIO ANTONIO;CIANI, LORENZO;CATELANI, MARCANTONIO;BRUZZI, MARA
2017
Abstract
A cost-effective lateral beam splitting photovoltaic system coupling a Si cell and a InGaAs photodiode through a long-pass dichroic filter has been designed, manufactured and tested under illumination with a Sun simulator and direct solar irradiation. Two filters with different cut-off wavelengths have been considered: 950nm and 1100nm, best efficiencies are achieved with the 950nm cut-off one due to lower reflectance losses in the high energy spectral range. The system, read-out in two-terminal configuration both in parallel and in series, proved to double the efficiency of the Si cell alone in case of high air masses.
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