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patent

Solar module and its production process

Perret-aebi, Laure-emmanuelle
•
Heinstein, Patrick
•
Despeisse, Matthieu  
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2015

The present invention relates to a solar module comprising a front sheet (30), an amorphous silicon photoelectric device (32) comprising at least a transparent front electrode layer (34), a p-type doped silicon layer (36), an intrinsic silicon layer (38), a n-type doped silicon layer (40), and a transparent back electrode layer (42), a back reflector (44), and a back sheet (46). The intrinsic silicon layer (38) of the amorphous silicon photoelectric device (32) has a thickness comprised between 50nm and 300nm, and preferably comprised between 100 nm and 200 nm. Moreover, the solar module further comprises, between the amorphous silicon photoelectric device (32) and the back reflector (44), a colored encapsulant layer (48) which comprises a coloring agent chosen in such a way that the solar module has a color within a region defined by an x value of 0.15to 0.75 and a y value of 0.10 to 0.70, and preferably defined by an x value of 0.28 to 0.65 and a y value of 0.20 to 0.50, in a chromaticity diagram of a CIE 1931 Yxy color system. Such solar modules have a uniform terracotta color similar to the color of traditional roof tiles and can be easily incorporated into the architecture of the buildings.

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Type
patent
EPO Family ID

46963547

Author(s)
Perret-aebi, Laure-emmanuelle
Heinstein, Patrick
Despeisse, Matthieu  
Ballif, Christophe  
Stueckelberger, Michael
Note

Alternative title(s) : (de) Solarmodul und dessen herstellungsverfahren (fr) Module solaire et son processus de fabrication

TTO classification

TTO:6.1377

EPFL units
AVP-R-TTO  
PV-LAB  
IdentifierCountry codeKind codeDate issued

EP2898540

EP

A1

2015-07-29

CN104718628

CN

A

2015-06-17

WO2014044620

WO

A1

2014-03-27

EP2711990

EP

A1

2014-03-26

Available on Infoscience
May 24, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/137542
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