Patent ID: 11901466
Assignee: TECHNISCHE UNIVERSITEIT EINDHOVEN
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A photovoltaic cell comprising:
a silicon substrate having two opposite main surfaces,
wherein a first main surface of the two main surfaces is covered with a passivation layer stack, comprising:
a POx- and Al-comprising-layer applied directly to the first main surface; and
a capping layer structure covering the PO, and Al-comprising-layer,
wherein the POx- and Al-comprising-layer is a mixed AlPxOy-film, and a ratio between the atomic percentage of phosphorus and phosphorus+aluminum (P/(P+Al)) in the POx- and Al-comprising-layer is at least 0.6 to less than 1.