Before depositing foil the n-type buffer layer, the CIGS absorber layers were rinsed in 5 wt% potassium cyanide solution for 5 min- Tr(uAatitetLeasDnitsio)u.armbTemoiiOusoot2vp0etr.ho2eip5xcc okÅexn/siessdseCmseu(esTSavies[uxaO.rrNieCededHxb(tfy,CrotHehmlel3i)pC02s]–I4oG...