Patent ID: 9224902
Filing Date: 2015-12-29
Classification: H01L,Y02E

Abstract:
1. A method of fabricating a silicon solar cell having nano-particle silicon emitters comprising the steps of: providing a silicon substrate having first and second opposing major surfaces; forming a thin interfacial passivation layer on one of the first and second opposing major surfaces, wherein forming the thin interfacial passivation layer comprises forming a tunnel oxide layer; forming a first plurality of p-doped emitters formed using silicon nano-particles and a second plurality of n-doped emitters formed using silicon nano-particles, wherein at least one of the first plurality of p-doped emitters or the second plurality of n-doped emitters is formed on the thin interfacial passivation layer; and forming first and second interconnect lines to the first plurality of p-doped emitters and to the second plurality of n-doped emitters, respectively.