▎ 摘　　要

NOVELTY - Fabricating graphene electrode based heterojunction photovoltaic cell involves (1) laser irradiating at least a portion of a polymer substrate to obtain layer of graphene; (2) depositing tungsten disulfide over graphene layer forming at least one electron transport layer; (3) depositing chromium doped bismuth ferrite over electron transport layer over forming at least one photoactive layer; (4) depositing a layer of metal oxide over photoactive layer forming at least one hole transport layer; and (5) depositing a layer of metal over hole transport layer forming at least one layer of metal electrode. USE - Method for fabricating graphene electrode based heterojunction photovoltaic cell used in flexible and wearable applications ADVANTAGE - The method optimizes graphene electrodes for enhanced power generation using laser power, laser, pulse width, gas environment and pressure, flow rate and combinations of all the parameters. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a laser induced graphene electrode based heterojunction photovoltaic cell, which comprises at least one polymer substrate; at least one layer of graphene deposited over said polymer substrate; at least one electron transport layer over said graphene layer; at least one photoactive layer over said electron transport layer; at least one-hole transport layer over said photoactive layer; and at least one layer of metal over said hole transport layer.