Institutt for Energiteknikk

Universidad Complutense De Madrid

Halvard Haug

Erik Stensrud Marstein

Su Zhou

Sean Erik Foss

Chunlan Zhou

Junjie Zhu

Wenjing Wang

Smagul Karazhanov

Julio Ramirez Castellanos

Ana Cremades Rodriguez

Maria Taeno Gonzalez

Chang Chuan You

Miguel Garcia Tecedor

Javier Piqueres De Noriega

Geraldo Cristian Vasquez Villanueva

David Maestre Varea

Jose Maria Gonzalez Calbet

Chang Chaun You

Javier Piqueras De Noriega

Julio Ramirez Castellano

Jose Maria Gonsalez Clabet

A relevant technological challenge is the low cost and abundant materials development for silicon surface passivation for applications in optoelectronic devices, in particular in solar cells by scalable industrial methods. In the present invention, a new hybrid material comprising PEDOT:PSS and transparent conducting oxide nanostructures is developed and a method is proposed to fabricate the composite material that passivates well the silicon surface to be used by means of a thin composite film of thickness below 200 nm.

Organic-inorganic hybrid material and method for silicon surface passivation

A method for manufacturing a passivation stack on a crystalline silicon solar cell device. The method includes providing a substrate comprising a crystalline silicone layer such as a crystalline silicon wafer or chip, cleaning a surface of the crystalline silicon layer by removing an oxide layer at least from a portion of one side of the crystalline silicon layer, depositing, on at least a part of the cleaned surface, a layer of silicon oxynitride, and depositing a capping layer comprising a hydrogenated dielectric material on top of the layer of silicon oxynitride, wherein the layer of silicon oxynitride is deposited at a temperature from 100&#xb0; C. to 200&#xb0; C., and the step of depositing the layer of silicon oxynitride includes using NO and SiHas precursor gasses in an Nambient atmosphere and depositing silicon oxynitride with a gas flow ratio of NO to SiHbelow 2.

Passivation stack on a crystalline silicon solar cell

Growing community of inventors

Oslo, Norway

Halvard Haug