The impact of series (Rs) and shunt resistances (Rsh) on solar cell parameters to enhance the photovoltaic performance of f-PSCs

• Published in: Optical materials Vol. 155; p. 115818
• Main Authors: Sardar, R.H., Bera, A., Chattopadhyay, S., Ali, S.I., Pramanik, S., Mandal, A.C.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2024
• Subjects: [formula omitted]; and shunt resistance; Antisolvent; F-PSCs; HTMs; Series ([formula omitted]; Sol-gel; Spin-coating; Series (Rs; HTMs; Sol-gel; Rsh; F-PSCs; Spin-coating; and shunt resistance; Antisolvent
• ISSN: 0925-3467
• DOI: 10.1016/j.optmat.2024.115818

Flexible Perovskite Solar Cells (f-PSCs) are made on an ITO-coated PET substrate. SnO2 has been used as a transparent inorganic electron transporting layer (ETL), PEDOT: PSS as an organic hole transporting layer (HTL), and C H3 N H3 Pb I3 as a perovskite absorbing layer. Two configurations of the device structure have been formed, one is normal structure ITO/PET/ SnO2/C H3 N H3 Pb I3/PEDOT: PSS/Ag (n-i-p) and the other is inverted structure ITO/PET/PEDOT: PSS/C H3 N H3 Pb I3/ SnO2/Ag (p-i-n). An antisolvent (i.e. ethyl acetate) has been used to control the surface morphology of the perovskite layers during fabrication of f-PSCs. Applying antisolvent in perovskite improves carrier mobility, transport properties, and higher power conversion efficiency (PCE) achieved. This study focuses on the effects of series (Rs) and shunt resistance (Rsh) of f-PSCs on photovoltaic parameters while controlling the surface morphology of perovskite films applied on both structures. The study examines the behaviour of f-PSCs with and without the use of an antisolvent. For normal structure, PCE is found at 11.34 % for f-PSCs with antisolvent and 7.96 % for f-PSCs without antisolvent. On the other hand, inverted structures show PCE 10.36 % and 7.46 % for f-PSCs with and without antisolvent, respectively. PCE has been calculated for the f-PSCs by bending the samples about 3 0o angle and about 20 % decrease in PCE has been found. The oddity of this work is to estimate the series and shunt resistant for f-PSCs and find the cost-effective control of these parameters by controlling interfacial defects. [Display omitted] Flexible Perovskite Solar Cells (f-PSCs) are made on an ITO-coated PET substrate. SnO2 has been used as a transparent inorganic electron transporting layer (ETL), PEDOT: PSS as an organic hole transporting layer (HTL), and C H3 N H3 Pb I3 as a perovskite absorbing layer. Two configurations of the device structure have been formed, one is normal structure ITO/PET/ SnO2/C H3 N H3 Pb I3/PEDOT: PSS/Ag (n-i-p) and the other is inverted structure ITO/PET/PEDOT: PSS/C H3 N H3 Pb I3/ SnO2/Ag (p-i-n). An antisolvent (i.e. ethyl acetate) has been used to control the surface morphology of the perovskite layers during fabrication of f-PSCs.•The article shows effect of series (Rs) and shunt resistances (Rsh) on solar cell parameters to enhance the photovoltaic performance of f-PSCs.•Single diode model has been employed to analyzed the results.•Better morphology has been achieved by using antisolvent. This paper also explains the effect of series (Rs) and shunt resistances (Rsh) on morphology.•The flexible hybrid heterostructure PSCs shows PCE 11.34 % with antisolvent.