摘要
Colloidal quantum dot solar cells(CQDSCs) have significantly progressed their power conversion efficiencies(PCEs) as a result of recent developments in their device architecture and interfacial layers.Generally, Surface passivation of Pb S colloidal quantum dots(CQDs) or appropriate interlayers between CQDs and electron transporting layers(ETLs) has been used in highly efficient solar cells.~(1,2) Moreover, electronic extraction conventionally need to pass through the ETLs to the transparent electrode; thus, the properties of the ETLs identically influence the device performance.Hence, We employed polyethylenimine(PEI) doped sol-gel-processed zinc oxide composites(ZnO:PEI) as efficient ETL to improve the PCE of CQDSCs.The promotion of device performance is attribution of defect reduction of ZnO and energy band optimization.
Colloidal quantum dot solar cells(CQDSCs) have significantly progressed their power conversion efficiencies(PCEs) as a result of recent developments in their device architecture and interfacial layers.Generally, Surface passivation of Pb S colloidal quantum dots(CQDs) or appropriate interlayers between CQDs and electron transporting layers(ETLs) has been used in highly efficient solar cells.~(1,2) Moreover, electronic extraction conventionally need to pass through the ETLs to the transparent electrode; thus, the properties of the ETLs identically influence the device performance.Hence, We employed polyethylenimine(PEI) doped sol-gel-processed zinc oxide composites(ZnO:PEI) as efficient ETL to improve the PCE of CQDSCs.The promotion of device performance is attribution of defect reduction of ZnO and energy band optimization.
引文
[1]M Yuan,M Liu,E H Sargent.Nature Energy,2016,1,16016.
[2]S.Zang,Y.Wang,W.Su,H.Zhu,G.Li,X.Zhang,and Y.Liu.Phys.Status Solidi RRL,2016,10,745-748.
