TY - JOUR
T1 - Interfacial engineering for high performance perovskite solar cells
AU - Aidarkhanov, Damir
AU - Ren, Zhiwei
AU - Yelzhanova, Zhuldyz
AU - Baptayev, Bakhytzhan
AU - Balanay, Mannix
AU - Surya, Charles
AU - Ng, Annie
N1 - Funding Information:
This research was supported by Nazarbayev University Grant Numbers: 090118FD5326, 110119FD4506, the targeted Program BR05236524 and social policy grants.
Publisher Copyright:
© 2021 Elsevier Ltd. All rights reserved.
PY - 2021/1/25
Y1 - 2021/1/25
N2 - Outstanding material properties allowed perovskite solar cells’ power conversion efficiencies (PCEs) exceed 25% within a decade, demonstrating the most rapid increase rate in PCEs among all the existing photovoltaic (PV) technologies. Despite such significant progress perovskite technology commercialization requires further enhancement in device performance. Here, we report a strategy for optimizing interfacial quality of the perovskite solar cells (PSCs). The interfacial layer between the electron transport layer (ETL) and the perovskite absorber were optimized by interface engineering technique via preparing the ETL consisted of Tin(IV) oxide (SnO2) quantum dots (QDs), SnO2 nanoparticle (NP) and a passivation layer based on Poly(methyl methacrylate): [6,6]-phenyl-C61-butyric acid methyl ester (PMMA:PCBM). It was demonstrated that the PSCs with a single-layer ETL made of SnO2 QDs exhibit strong I-V hysteresis, while the application of a triple-layer ETL effectively suppresses the hysteresis due to the optimization of ETL/ perovskite interface. This work demonstrated the effective protocol which can substantially improve the performance of PSCs and eliminate the I-V hysteresis.
AB - Outstanding material properties allowed perovskite solar cells’ power conversion efficiencies (PCEs) exceed 25% within a decade, demonstrating the most rapid increase rate in PCEs among all the existing photovoltaic (PV) technologies. Despite such significant progress perovskite technology commercialization requires further enhancement in device performance. Here, we report a strategy for optimizing interfacial quality of the perovskite solar cells (PSCs). The interfacial layer between the electron transport layer (ETL) and the perovskite absorber were optimized by interface engineering technique via preparing the ETL consisted of Tin(IV) oxide (SnO2) quantum dots (QDs), SnO2 nanoparticle (NP) and a passivation layer based on Poly(methyl methacrylate): [6,6]-phenyl-C61-butyric acid methyl ester (PMMA:PCBM). It was demonstrated that the PSCs with a single-layer ETL made of SnO2 QDs exhibit strong I-V hysteresis, while the application of a triple-layer ETL effectively suppresses the hysteresis due to the optimization of ETL/ perovskite interface. This work demonstrated the effective protocol which can substantially improve the performance of PSCs and eliminate the I-V hysteresis.
KW - Defects
KW - Hysteresis
KW - Interface
KW - Passivation
KW - Perovskites
KW - Solar cells
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U2 - 10.1016/j.matpr.2020.11.918
DO - 10.1016/j.matpr.2020.11.918
M3 - Article
SN - 2214-7853
VL - 49
SP - 2482
EP - 2486
JO - Materials Today: Proceedings
JF - Materials Today: Proceedings
T2 - 8th International Conference on Nanomaterials and Advanced Energy Storage Systems, INESS 2020
Y2 - 6 August 2020 through 6 August 2020
ER -