Improved charge transport ability of polymer solar cells by using NPB/MoO3 as anode buffer layer

Li, Ping; Wu, Bo; Yang, You Chang; Huang, Hao; Yang, Xun; Zhou, Guang; Song, Qunliang

doi:10.1016/j.solener.2018.04.020

Cited by 20 publications

(8 citation statements)

References 38 publications

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“…These results suggested the formation of an ohmic contact between the photoactive layer and anode, which contributed to the hole extraction efficiency. Alternatively, the NPB layer was inserted between the MoO 3 layer and the photoactive layer in inverted OSCs based on P3HT:PC 61 BM [ 374 ]. The PCE was enhanced from 3.20% to 3.94%, owing to the increased J sc and reduced R s by an improved charge transportation and reduced recombination at the interface.…”

Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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Global energy demand is increasing; thus, emerging renewable energy sources, such as organic solar cells (OSCs), are fundamental to mitigate the negative effects of fuel consumption. Within OSC’s advancements, the development of efficient and stable interface materials is essential to achieve high performance, long-term stability, low costs, and broader applicability. Inorganic and nanocarbon-based materials show a suitable work function, tunable optical/electronic properties, stability to the presence of moisture, and facile solution processing, while organic conducting polymers and small molecules have some advantages such as fast and low-cost production, solution process, low energy payback time, light weight, and less adverse environmental impact, making them attractive as hole transporting layers (HTLs) for OSCs. This review looked at the recent progress in metal oxides, metal sulfides, nanocarbon materials, conducting polymers, and small organic molecules as HTLs in OSCs over the past five years. The endeavors in research and technology have optimized the preparation and deposition methods of HTLs. Strategies of doping, composite/hybrid formation, and modifications have also tuned the optical/electrical properties of these materials as HTLs to obtain efficient and stable OSCs. We highlighted the impact of structure, composition, and processing conditions of inorganic and organic materials as HTLs in conventional and inverted OSCs.

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Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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“…FF and Voc remain almost insensitive to variation in thickness of HTL. Consequently, the thickness of HTL has a minor effect on electrical parameters of simulated inverted OSC due to the low hole mobility [35].…”

Section: Resultsmentioning

confidence: 99%

Optimization and development of ITO-free plasmonic gold nanoparticles assisted inverted organic solar cells

et al. 2022

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“…However, their power conversion efficiency (PCE) is insufficient compared to that of other silicon-based devices. This is mainly due to the low mobility of polymer semiconductors, which leads to poor charge transportability [29]. The intrinsic potential of the active layer film and the number of photogenerated carriers generated by the recombination effect are limited by their thickness, which makes it difficult to achieve higher PCE.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonically Processed WSe2 Nanosheets Blended Bulk Heterojunction Active Layer for High-Performance Polymer Solar Cells and X-ray Detectors

et al. 2021

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Two-dimensional (2D) tungsten diselenide (WSe2) has attracted considerable attention in the field of photovoltaic devices owing to its excellent structure and photoelectric properties, such as ordered 2D network structure, high electrical conductivity, and high mobility. For this test, we firstly prepared different sizes (NS1–NS3) of WSe2 nanosheets (NSs) through the ultrasonication method and characterized their structures using the field emission scanning electron microscope (FE-SEM), Raman spectroscopy, and X-ray powder diffraction. Moreover, we investigated the photovoltaic performance of polymer solar cells based on 5,7-Bis(2-ethylhexyl)benzo[1,2-c:4,5-c′]dithiophene-4,8-dione(PBDB-T):(6,6)-phenyl-C71 butyric acid methyl ester (PCBM) with different WSe2 NSs as the active layer. The fabricated PBDB-T:PCBM active layer with the addition of NS2 WSe2 NSs (1.5 wt%) exhibited an improved power conversion efficiency (PCE) of 9.2%, which is higher than the pure and NS1 and NS3 WSe2 blended active layer-encompassing devices. The improved PCE is attributed to the synergic enhancement of exciton dissociation and an improvement in the charge mobility through the modified active layer for polymer solar cells. Furthermore, the highest sensitivity of 2.97 mA/Gy·cm2 was achieved for the NS2 WSe2 NSs blended active layer detected by X-ray exposure over the pure polymer, and with the NS1 and NS2 WSe2 blended active layer. These results led to the use of transition metal dichalcogenide materials in polymer solar cells and X-ray detectors.

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Improved charge transport ability of polymer solar cells by using NPB/MoO3 as anode buffer layer

Cited by 20 publications

References 38 publications

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Optimization and development of ITO-free plasmonic gold nanoparticles assisted inverted organic solar cells

Ultrasonically Processed WSe2 Nanosheets Blended Bulk Heterojunction Active Layer for High-Performance Polymer Solar Cells and X-ray Detectors

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