Several attempts in order to prepare a suitable back contact to be used for CdTe/CdS solar cells in the substrate configuration have been made. Excluding the use of metallic elements which can diffuse to the junction, we found a specific configuration as a possible candidate for a stable and not rectifying contact. This configuration consists in the deposition by sputtering of a stack of layers namely 0.5μm of Mo followed by 10nm of Cu, 10nm of Ag and 1μm of ZnTe. This type of contact gives the possibility to prepare CdTe/CdS solar cells in the substrate configuration with an efficiency around 7%. By changing the parameters of preparation of the solar cells, we believe, the efficiency can be increased up to 10% or more.
Investigation of a Suitable Back Contact for CdTe/CdS Solar Cells Prepared in the Substrate Configuration / Romeo, Nicola; Bosio, Alessio; Mazzamuto, Samantha; Menossi, Daniele; J. L., Peña; A., Salavei; I., Rimmaudo; V., Allodi; A., Romeo. - (2011), pp. 2460-2462. (Intervento presentato al convegno 26th European Photovoltaic Solar Energy Conference and Exhibition tenutosi a CCH Congress Centre and International Fair Hamburg, Germany nel 5-9 Settembre 2011).
Investigation of a Suitable Back Contact for CdTe/CdS Solar Cells Prepared in the Substrate Configuration
ROMEO, Nicola;BOSIO, Alessio;MAZZAMUTO, Samantha;MENOSSI, Daniele;
2011-01-01
Abstract
Several attempts in order to prepare a suitable back contact to be used for CdTe/CdS solar cells in the substrate configuration have been made. Excluding the use of metallic elements which can diffuse to the junction, we found a specific configuration as a possible candidate for a stable and not rectifying contact. This configuration consists in the deposition by sputtering of a stack of layers namely 0.5μm of Mo followed by 10nm of Cu, 10nm of Ag and 1μm of ZnTe. This type of contact gives the possibility to prepare CdTe/CdS solar cells in the substrate configuration with an efficiency around 7%. By changing the parameters of preparation of the solar cells, we believe, the efficiency can be increased up to 10% or more.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
