Enhancing efficiency of perovskite solar cells using a thin buffer layer

Lin, Wen Wei; Su, Shu Hsuan; Yeh, Meng Cheng; Chen, Chih Yung; Yokoyama, M.

doi:10.1016/j.vacuum.2016.12.037

Cited by 17 publications

(6 citation statements)

References 32 publications

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“…Other buffer layers, such as AZO, 85,86 TPBi, 87 metal(acac) x , 88,89 Zr(Ac) 4 (ref. 90 ) have been successfully implemented in inverted PSCs between the PCBM and Ag layers.…”

Section: Resultsmentioning

confidence: 99%

Inverted perovskite solar cells with enhanced lifetime and thermal stability enabled by a metallic tantalum disulfide buffer layer

et al. 2021

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“…Other buffer layers, such as AZO, 85,86 TPBi, 87 metal(acac) x , 88,89 Zr(Ac) 4 (ref. 90 ) have been successfully implemented in inverted PSCs between the PCBM and Ag layers.…”

Section: Resultsmentioning

confidence: 99%

Inverted perovskite solar cells with enhanced lifetime and thermal stability enabled by a metallic tantalum disulfide buffer layer

et al. 2021

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“…Thus, improving the interface with ETL and HTL often leads to better performance and stability. [ 89,90 ] Therefore, an ultrathin buffer layer is used in the interface to avoid direct contact of the ETL/HTL with the perovskite layer. Though the buffer layer introduces its series resistance in the device, it is instrumental in reducing carrier recombination by lattice matching with the perovskite and passivating the interface deep traps and defects.…”

Section: Stability Of Other Layersmentioning

confidence: 99%

“…Golden Triangle of solar cells showing relevant parameters stability, efficiency, and cost per watt for silicon and PSCs. [ 21,22,90,144–147 ] …”

Section: Other Factorsmentioning

confidence: 99%

Stability Issues of Perovskite Solar Cells: A Critical Review

Dipta

Uddin

2021

Energy Tech

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The efficiency of perovskite solar cells (PSCs) has risen rapidly over the past decade, and it has already crossed the 25% mark. However, stability has long been the bottleneck toward the commercialization of these devices. Perovskite is inherently vulnerable to moisture, high temperature, UV light, and other environmental factors, which naturally come in contact during operation. Moreover, degradation of the device is also associated with the hole transport layer (HTL), electron transport layer (ETL), and buffer layers. The mechanisms for PSCs’ physical, chemical, structural, and environmental instabilities are discussed critically herein, along with recent efforts made by various groups to overcome these stability issues. Comparison is made among different engineering techniques to stabilize the devices. Moreover, the lack of unified criteria for stability tests of PSCs is discussed. Different degradation mechanisms are collated and compared and recent approaches of different groups on stability analysis from a neutral point of view are critically evaluated. Finally, this review urges future research to focus on novel materials for different layers which are reasonably lattice matched and stable with perovskite layer and use suitable encapsulation techniques for proper sealing of the device against degrading substances.

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“…Active layer based on conjugated poly [3-hexylthiophene] (P3HT) polymer donor and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) fullerene acceptors have widely been investigated due to their excellent optical and electrical properties and have a good stability and lifetime, which is around five years under controlled conditions [4][5][6] . Besides, interfacial layers such as electron transport layers (ETL) and hole transport layers (HTL) have been incorporated between active layer and electrodes to enhance the power conversion efficiency of the solar cells 7,8 . ETL must be highly transparent to transmit the incident light to the active layer 9 .…”

Section: Introductionmentioning

confidence: 99%

Optoelectrical Properties and the Study of Thickness and Annealing in Poly-3-hexylthiophene Based ITO Free Organic Solar Cells with TiO2 and MoO3 as Transport Layers

et al. 2022

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Inverted organic photovoltaic solar cells were fabricated with the configuration of FTO/TiO 2 / P3HT:PC 61 BM/MoO 3 /Ag. Besides, the influence of transport layers, titanium dioxide and molybdenum trioxide, on the performance of solar cells were investigated. These compounds showed excellent optical (around 80% for molybdenum trioxide and 95% for titanium dioxide), electrical (like charge carrier density of 3.3 x10 15 cm -3 and 2.5 x10 14 cm -3 for titanium and molybdenum, respectively) and structural (anatase and amorphous hexagonal phase for titanium and molybdenum, respectively) properties to be used as transport layers. Also the influence of the thickness of the electron transport layer is studied, as well as the thickness, temperature and heat treatment time of the active layer. The correct selection of TiO 2 's thickness (70 nm) and active layer's thickness (250 nm) and annealing (at 100 degrees for 8 minutes) can increase the power conversion efficiency. Moreover, the cell fabricated with transport layers and the best conditions found showed a maximum efficiency of 3.3%, which indicates that the titanium dioxide and molybdenum trioxide played a determining role in the solar cell performance.

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Enhancing efficiency of perovskite solar cells using a thin buffer layer

Cited by 17 publications

References 32 publications

Inverted perovskite solar cells with enhanced lifetime and thermal stability enabled by a metallic tantalum disulfide buffer layer

Inverted perovskite solar cells with enhanced lifetime and thermal stability enabled by a metallic tantalum disulfide buffer layer

Stability Issues of Perovskite Solar Cells: A Critical Review

Optoelectrical Properties and the Study of Thickness and Annealing in Poly-3-hexylthiophene Based ITO Free Organic Solar Cells with TiO2 and MoO3 as Transport Layers

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