Promoting the photovoltaic performance and stability of organic solar cells by imidazole-doped PEDOT:PSS

Shen, Hao; Tian, Huayu; Huang, Huaxi; Wu, Di; Xia, Jianlong

doi:10.1007/s10854-022-08168-y

Cited by 6 publications

(5 citation statements)

References 65 publications

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“…The long‐term stability of “CNT‐organic passivation” composite layer is often a concern for researchers wishing to use this process. CNTs have excellent stability in ambient, humid, hot, or ultraviolet radiation conditions, [ 156 , 157 , 158 , 159 ] but the hygroscopic nature of the organic passivation materials (such as PSS, Nafion) are known to lead to performance reductions [ 160 ] and these must be addressed. In fact, humidity is the main limitation for the stability of organic passivation film.…”

Section: Perspectivesmentioning

confidence: 99%

The Development of Carbon/Silicon Heterojunction Solar Cells through Interface Passivation

Chen,

Zhang,

Gao

et al. 2024

Advanced Science

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Passivating contactsin heterojunction (HJ) solar cells have shown great potential in reducing recombination losses, and thereby achieving high power conversion efficiencies in photovoltaic devices. In this direction, carbon nanomaterials have emerged as a promising option for carbon/silicon (C/Si) HJsolar cells due to their tunable band structure, wide spectral absorption, high carrier mobility, and properties such as multiple exciton generation. However, the current limitations in efficiency and active area have hindered the industrialization of these devices. In this review, they examine the progress made in overcoming these constraints and discuss the prospect of achieving high power conversion efficiency (PCE) C/Si HJ devices. A C/Si HJ solar cell is also designed by introducing an innovative interface passivation strategy to further boost the PCE and accelerate the large area preparationof C/Si devices. The physical principle, device design scheme, and performanceoptimization approaches of this passivated C/Si HJ cells are discussed. Additionally, they outline potential future pathways and directions for C/Si HJ devices, including a reduction in their cost to manufacture and their incorporation intotandem solar cells. As such, this review aims to facilitate a deeperunderstanding of C/Si HJ solar cells and provide guidance for their further development.

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Section: Perspectivesmentioning

confidence: 99%

The Development of Carbon/Silicon Heterojunction Solar Cells through Interface Passivation

Chen,

Zhang,

Gao

et al. 2024

Advanced Science

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“…Shen et al introduced a gentle organic base, imidazole, as the dopant to neutralize the acidity of PEDOT:PSS. [ 136 ] The interaction between imidazole and PSS will restrict the ionization of acidic protons, and reduce the amount of residual insulating PSS content in the film, which improved electrical conductivity and reduced acidity simultaneously. Compared with the untreated PEDOT:PSS, OSCs devices based on imidazole‐treated PEDOT:PSS shows a higher PCE of 10.09% with higher stability.…”

Section: Anode Interface Engineeringmentioning

confidence: 99%

Interface Engineering for Highly Efficient Organic Solar Cells

et al. 2023

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Organic solar cells (OSCs) have made dramatic advancements during the past decades owing to the innovative material design and device structure optimization, with power conversion efficiencies surpassing 19% and 20% for single‐junction and tandem devices, respectively. Interface engineering, by modifying interface properties between different layers for OSCs, has become a vital part to promote the device efficiency. It is essential to elucidate the intrinsic working mechanism of interface layers, as well as the related physical and chemical processes that manipulate device performance and long‐term stability. In this article, the advances in interface engineering aimed to pursue high‐performance OSCs are reviewed. The specific functions and corresponding design principles of interface layers are summarized first. Then, the anode interface layer, cathode interface layer in single‐junction OSCs, and interconnecting layer of tandem devices are discussed in separate categories, and the interface engineering‐related improvements on device efficiency and stability are analyzed. Finally, the challenges and prospects associated with application of interface engineering are discussed with the emphasis on large‐area, high‐performance, and low‐cost device manufacturing.

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“…[33][34][35][36][37] It is also widely used as electrochromic materials, interface materials and transparent electrodes of organic electronic devices such as organic solar cells and organic light-emitting diodes. [38][39][40][41][42][43][44] Recent studies have shown that PEDOT: PSS also exhibits good performances in the aspect of photothermal conversion field. For instance, Liu et al disclosed that by coupling PEDOT: PSS with branching polyethylene glycol (PEG), the PEDOT: PSS-PEG nanoparticles show high stability in physiological environment, and nontoxicity to mice within 40 days in vivo, and exhibit good photothermal conversion properties, which are important and helpful for cancer treatment.…”

Section: Introductionmentioning

confidence: 99%

Open-shell Oligo(3,4-dioxythiophene) Radical: Synthesis and Photothermal Conversion Performance

Wei,

Liao,

Huang

et al. 2024

Preprint

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Open-shell radical meterials have received worldwide attention due to its potential application in highly efficient photothermal conversion field. However, it is still a challenge to enhance the chemical and photothermal stability of the open-shell small molecules and polymers. Herein, a stable open-shell oligo(3,4-dioxythiophene) radical PTTO2 was readily synthesized via simple BBr3-demethylation of the copolymer PTTOMe2 precursor prepared using cheap raw materials. The open-shell character of PTTO2 was carefully studied and confirmed via the signal-silent 1H-NMR spectrum, highly enhanced electron spin resonance signal comparing with PTTOMe2, as well as the ultral-wide UV-vis-NIR absorption and FTIR spectra and other technologies. Surprisingly, the powder of PTTO2 exhibit extremely wide absorption range from 300 to 2500 nm. The powder of PTTO2 can reach 274 ℃ under the same irradiation of 1.2 W cm-2, which is much higher 108 ℃ of the PTTOMe2. To date, PTTO2 stands as one of the low cost pure organic photothermal materials with super-high photothermal conversion performances.

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Promoting the photovoltaic performance and stability of organic solar cells by imidazole-doped PEDOT:PSS

Cited by 6 publications

References 65 publications

The Development of Carbon/Silicon Heterojunction Solar Cells through Interface Passivation

The Development of Carbon/Silicon Heterojunction Solar Cells through Interface Passivation

Interface Engineering for Highly Efficient Organic Solar Cells

Open-shell Oligo(3,4-dioxythiophene) Radical: Synthesis and Photothermal Conversion Performance

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