HIP-MWT: A simplified structure for metal wrap through solar cells with passivated rear surface, DOI: 10.1016/j.egypro.2011.06.172 Large-area p-type HIP-MWT silicon solar cells with screen printed contacts exceeding 20% efficiency, DOI: 10.1002/pssr.201105311 A HIP-MWT solar cell turns sunlight into cheap and clean electricity.