High-performance inverted planar perovskite solar cells using a pristine fullerene mixture as an electron-transport layer

Xu, Chongyang; Liu, Zhihai; Lee, Eun-Cheol

doi:10.1039/c9tc01741k

Cited by 32 publications

(32 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As one of the most competitive materials in the photovoltaic field, organic-inorganic hybrid halide lead perovskites (ABX 3 , where A is a monovalent cation, B is a divalent cation and X is a halide ion) have attracted great attention in recent years [1][2][3][4]. Through structural engineering [5,6], surface interface engineering [7,8], solvent engineering [9,10] and incident light management engineering [11,12], current organic-inorganic hybrid perovskite-based photovoltaic devices have demonstrated power conversion efficiencies (PCEs) of over 25.2% [13]. They show broad application prospects in the new generation of the green energy industry.…”

Section: Introductionmentioning

confidence: 99%

Efficiency Improvement of MAPbI3 Perovskite Solar Cells Based on a CsPbBr3 Quantum Dot/Au Nanoparticle Composite Plasmonic Light-Harvesting Layer

et al. 2020

View full text Add to dashboard Cite

We demonstrate a method to enhance the power conversion efficiency (PCE) of MAPbI3 perovskite solar cells through localized surface plasmon (LSP) coupling with gold nanoparticles:CsPbBr3 hybrid perovskite quantum dots (AuNPs:QD-CsPbBr3). The plasmonic AuNPs:QD-CsPbBr3 possess the features of high light-harvesting capacity and fast charge transfer through the LSP resonance effect, thus improving the short-circuit current density and the fill factor. Compared to the original device without Au NPs, a 27.8% enhancement in PCE of plasmonic AuNPs:QD-CsPbBr3/MAPbI3 perovskite solar cells was achieved upon 120 μL Au NP solution doping. This improvement can be attributed to the formation of surface plasmon resonance and light scattering effects in Au NPs embedded in QD-CsPbBr3, resulting in improved light absorption due to plasmonic nanoparticles.

show abstract

Section: Introductionmentioning

confidence: 99%

Efficiency Improvement of MAPbI3 Perovskite Solar Cells Based on a CsPbBr3 Quantum Dot/Au Nanoparticle Composite Plasmonic Light-Harvesting Layer

et al. 2020

View full text Add to dashboard Cite

show abstract

“…High cost of fullerene derivatives, such as PCBM and its modification, is an obstacle to commercializing inverted PSCs. 25,145,[176][177][178][179][180][181] Low cost of top ETL fabrication is beneficial for the PSC commercialization. 30,34,180,[182][183][184][185][186][187][188][189][190][191][192][193] 2.2 | Advantages of inorganic top ETL Organic materials have been widely used as top ETL in efficient inverted PSCs.…”

Section: Principles Of Top Etlmentioning

confidence: 99%

“…25,145,[176][177][178][179][180][181] Low cost of top ETL fabrication is beneficial for the PSC commercialization. 30,34,180,[182][183][184][185][186][187][188][189][190][191][192][193] 2.2 | Advantages of inorganic top ETL Organic materials have been widely used as top ETL in efficient inverted PSCs. 25 The most popular organic top ETLs are fullerenes (C 60 and C 70 ) and their soluble form phenyl-C61-butyric acid methyl ester (PCBM) due to their low-temperature deposition process and efficient electron transporting.…”

Section: Principles Of Top Etlmentioning

confidence: 99%

Inorganic top electron transport layer for high performance inverted perovskite solar cells

Yang

Peng

Choy

2021

EcoMat

View full text Add to dashboard Cite

As promising photovoltaic devices, perovskite solar cells (PSCs) have attracted extensive and ongoing attention due to easy manufacturing and high power conversion efficiency (PCE). Although the PCE is lower than that of PSCs with normal structure, inverted PSCs have been widely investigated due to their lower hysteresis and potential application. Electron transport layer (ETL) on top of perovskite film in inverted PSCs plays a significant role in device performance. Inorganic top ETL has been used to replace organic ETL for their excellent characters. This review summarizes the progress of inorganic top ETL for high-performance inverted PSCs. Firstly, the principles of top ETL and advantages of inorganic ETL are highlighted. Then the established top ETLs are summarized. Subsequently, various strategies for top ETL fabrication are shown to demonstrate their advantages and shortcomings. Finally, conclusion and outlook of top ETL in inverted PSCs are presented, addressing the issues and directing the hopeful solutions.

show abstract

“…[13][14][15][16][17] A lot of efforts have been made to solve such defects, including element doping, solvent engineering, and interfacial modification. [3,[18][19][20][21] These methods yield the perovskite film with a better quality by modifying the crystal structure, optimizing the crystal configuration, and improving the interfacial morphology, which means decreasing the de-fects and increasing the regularity. A lot of methods have been studied in three-dimensional PSCs, which are also meaningful for the two-dimensional (2D) PSCs.…”

Section: Introductionmentioning

confidence: 99%

“…[32][33][34] C. Xu developed the ETL of 3D planar inverted PSCs by replacing conventional [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) with the fullerene mixture of C60/C70 and achieved a PCE improved from 15.2 to 16.9%. [19] J. Huang's group obtained the structural order of PCBM layer using the solvent annealing process and the PCE of perovskite sample was improved from 17.1 to 19.4%. [33] They argued that the quality-improved ETL had a significant impact on the performance of PSCs and the Voc was effectively enhanced.…”

Section: Introductionmentioning

confidence: 99%

Surface passivation using n-type organic semiconductor in two-dimensional perovskite solar cells

Xie¹,

Zeng²,

Wang³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Surface passivation, which has been intensively studied recently, is essential for the perovskite solar cells (PSCs), due to the intrinsic defects in perovskite crystal. A series of chemical or physical methods have been published for passivating the defects of perovskite, which effectively suppressed the charge recombination and enhanced the photovoltaic performance. In this study, the n-type semiconductor of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is dissolved in chlorobenzene (CB) for the surface passivation during the spin-coating process for depositing the two-dimensional (2D) perovskite film. This approach simplifies the fabrication process of 2D PSCs and benefits the film quality. As a result, the defects of perovskite film are effectively passivated by this method. A better perovskite/PCBM heterojunction is generated, exhibiting an increased film coverage and improved film morphology of PCBM. It is found that this technology results in an improved electron transporting performance as well as suppressed charge recombination for electron transport layer. As a result, PSCs based on the one-step formed perovskite/PCBM heterojunctions exhibit the optimized power conversion efficiency of 15.69% which is about 37% higher than that of regular perovskite devices. The device environmental stability is also enhanced due to the quality-improved electron transport layer.

show abstract

High-performance inverted planar perovskite solar cells using a pristine fullerene mixture as an electron-transport layer

Abstract: A mixture of C60/C70 can improve the solubility and maintain the original electron-transport property at the same time.

Cited by 32 publications

References 53 publications

Efficiency Improvement of MAPbI3 Perovskite Solar Cells Based on a CsPbBr3 Quantum Dot/Au Nanoparticle Composite Plasmonic Light-Harvesting Layer

Efficiency Improvement of MAPbI3 Perovskite Solar Cells Based on a CsPbBr3 Quantum Dot/Au Nanoparticle Composite Plasmonic Light-Harvesting Layer

Inorganic top electron transport layer for high performance inverted perovskite solar cells

Surface passivation using n-type organic semiconductor in two-dimensional perovskite solar cells

Contact Info

Product

Resources

About