Enhancing performance of inverted planar perovskite solar cells by argon plasma post-treatment on PEDOT:PSS

Yu, Miao; Huang, Xiaona; Wang, Shuying; Ben, Chen; Yang, Zhen; Chen, Bin; Liu, Ming-zhen; Zhang, Wanli; Xiong, Jie

doi:10.1039/c7ra01718a

Cited by 9 publications

(5 citation statements)

References 23 publications

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“…35 The conductivity of treated PEDOT:PSS was increased by mild Ar LPP treatment, leading to a better PSC performance. 36 Ar LPP treatment has also been used for surface composition tuning for fabricating high-efficiency PSCs and fast photodetectors. 37 LPP is undoubtedly a stable and mature technology that has been used extensively in the fabrication of electronic devices.…”

Section: Introductionmentioning

confidence: 99%

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Low-Temperature (<40 °C) Atmospheric-Pressure Dielectric-Barrier-Discharge-Jet Treatment on Nickel Oxide for p–i–n Structure Perovskite Solar Cells

et al. 2020

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A scan-mode low-temperature (<40 °C) atmospheric-pressure helium (He) dielectric-barrier discharge jet (DBDjet) is applied to treat nickel oxide (NiO) thin films for p−i−n perovskite solar cells (PSCs). Reactive plasma species help reduce the trap density, improve the transmittance and wettability, and deepen the valence band maximum (VBM) level. A NiO surface with the lower trap density surface of NiO allows better interfacial contact with the MAPbI 3 layer and increases the carrier extraction capability. MAPbI 3 can better crystallize on a more hydrophilic NiO surface, thereby suppressing charge recombination from the grain boundary and the interface. Further, the deeper VBM allows better band alignment and reduces the probability of nonradiative recombination. NiO treatment using He DBDjet with a scan rate of 0.3 cm/s can improve PSC efficiency from 13.63 to 14.88%.

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Section: Introductionmentioning

confidence: 99%

“…Spiro-OMeTAD HTL was shown to be rapidly oxidized by Ar/O 2 LPP treatment . The conductivity of treated PEDOT:PSS was increased by mild Ar LPP treatment, leading to a better PSC performance . Ar LPP treatment has also been used for surface composition tuning for fabricating high-efficiency PSCs and fast photodetectors …”

Section: Introductionmentioning

confidence: 99%

Low-Temperature (<40 °C) Atmospheric-Pressure Dielectric-Barrier-Discharge-Jet Treatment on Nickel Oxide for p–i–n Structure Perovskite Solar Cells

et al. 2020

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“…Yu et al investigated the conductivity and surface morphology of the argon plasma-treated PEDOT:PSS films. 133 The excess PSS was easily removed from the surface of the films, resulting in a rougher surface morphology and higher PEDOT:PSS ratio. The plasma-treated PEDOT:PSS layers exhibited enhanced conductivity.…”

Section: Improving J Scmentioning

confidence: 99%

“…Apart from doping and post-treatment, some other efforts were made to reduce the ratio of PSS at the surface of PEDOT:PSS to improve conductivity. Yu et al investigated the conductivity and surface morphology of the argon plasma-treated PEDOT:PSS films . The excess PSS was easily removed from the surface of the films, resulting in a rougher surface morphology and higher PEDOT:PSS ratio.…”

Section: Improving J Scmentioning

confidence: 99%

Recent Progress of Inverted Perovskite Solar Cells with a Modified PEDOT:PSS Hole Transport Layer

Han

Ren

Liu

et al. 2020

ACS Appl. Mater. Interfaces

115

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Organic–inorganic hybrid perovskite solar cells (PSCs) has achieved the power conversion efficiency (PCE) of 25.2% in the last 10 years, and the PCE of inverted PSCs has reached >22%. The rapid enhancement has partly benefited from the employment of suitable hole transport layers. Especially, poly(3,4-ethenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is one of the most widely used polymer hole transport materials in inverted PSCs, because of its high optical transparency in the visible region and low-temperature processing condition. However, the PCE and stability of PSCs based on pristine PEDOT:PSS are far from satisfactory, which are ascribed to low fitness between PEDOT:PSS and perovskite materials, in terms of work function, conductivity, film growth, and hydrophobicity. This paper summaries recent progress regarding to modifying/remedy the drawbacks of PEDOT:PSS to improve the PCE and stability. The systematically understanding of the mechanism of modified PEDOT:PSS and various characteristic methods are summarized here. This Review has the potential to guide the development of PSCs based on commercial PEDOT:PSS.

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“…Researchers used a variety of methods, including structure optimization [ 11 – 13 ], development of improved HTL [ 13 ] and ETL [ 14 , 15 ], crystalline and morphology control of perovskites [ 16 , 17 ], and interfacial engineering [ 18 – 20 ], to improve the efficiency of inverted PSCs. Unfortunately, the efficiency of inverted planar solar cells is still lower than that of traditional structure [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid UV-Ozone-Treated rGO-PEDOT:PSS as an Efficient Hole Transport Material in Inverted Planar Perovskite Solar Cells

et al. 2017

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Inverted planar perovskite solar cells (PSCs), which are regarded as promising devices for new generation of photovoltaic systems, show many advantages, such as low-temperature film formation, low-cost fabrication, and smaller hysteresis compared with those of traditional n-i-p PSCs. As an important carrier transport layer in PSCs, the hole transport layer (HTL) considerably affects the device performance. Therefore, HTL modification becomes one of the most critical issues in improving the performance of PSCs. In this paper, we report an effective and environmentally friendly UV-ozone treatment method to enhance the hydrophilia of reduced graphene oxide (rGO) with its excellent electrical performance. The treated rGO was applied to doped poly(3,4-ethylenedioxythiophene) poly(styrene-sulfonate) (PEDOT:PSS) as HTL material of PSCs. Consequently, the performance of rGO/PEDOT:PSS-doped PSCs was improved significantly, with power conversion efficiency (PCE) of 10.7%, Jsc of 16.75 mA/cm2, Voc of 0.87 V, and FF of 75%. The PCE of this doped PSCs was 27% higher than that of the PSCs with pristine PEDOT:PSS as HTL. This performance was attributed to the excellent surface morphology and optimized hole mobility of the solution-processable rGO-modified PEDOT:PSS.

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Enhancing performance of inverted planar perovskite solar cells by argon plasma post-treatment on PEDOT:PSS

Abstract: The performance of perovskite solar cells could be improved significantly by the method of argon plasma post-treatment on PEDOT:PSS.

Cited by 9 publications

References 23 publications

Low-Temperature (<40 °C) Atmospheric-Pressure Dielectric-Barrier-Discharge-Jet Treatment on Nickel Oxide for p–i–n Structure Perovskite Solar Cells

Low-Temperature (<40 °C) Atmospheric-Pressure Dielectric-Barrier-Discharge-Jet Treatment on Nickel Oxide for p–i–n Structure Perovskite Solar Cells

Recent Progress of Inverted Perovskite Solar Cells with a Modified PEDOT:PSS Hole Transport Layer

Hybrid UV-Ozone-Treated rGO-PEDOT:PSS as an Efficient Hole Transport Material in Inverted Planar Perovskite Solar Cells

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