Electrodeposition of n-CdSe/p-Cu2Se Heterojunction Solar Cells
Abstract
Thin film heterojunction photovoltaic (PV) solar cells play vital role due to its large area, low cost and higher efficiency devices in solar energy conversion. In this work, low-temperature and cost-effective electrodeposition of n-CdSe and p-Cu2Se heterojunction solar cells are developed and explored. The individual part of heterojunction is screened for its structure, morphology, compositional, optical, and photoelectrochemical measurements. Then-CdSe/p-Cu2Se device designed onto an indium-tin-oxide conducting substrate with PEDOT layer sequencing followed gold contact for extracting charge carriers referring to appropriate band energy level diagram elucidate solar-cell type, behavior due easy charge transportation process of holes and electrons in a different direction of heterojunction. Despite a low power conversion efficiency due to weak current density and voltage.