Structural Transformation of PEDOT on Si/PEDOT:PSS Hybrid Solar Cells by Doping Hydroquinone

Yuan, Xiaomin; Zhang, Guijun; Peng, Haitao; Wang, Juan; Wei, Qiong; Wang, Rongfei; Yang, Yu

doi:10.1002/ente.202300422

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…The dark J – V characteristic curves of the devices doped with different WA concentrations are shown in Figure b. The value of reverse saturation current ( J 0 ) can be calculated from the dark J – V curve, based on eq . − J dark ( V ) = J 0 [ exp true( qV nkT true) − 1 ] where J dark and J 0 are the dark current density and reverse saturation current density, respectively, V is the applied voltage, n is the ideal factor, T is the absolute temperature (298 K), k is the Boltzmann constant (1.38 × 10 –23 J·K –1 ), and q is the electronic charge (1.6 × 10 –19 C). The J 0 of the original device is 9.8 × 10 –3 mA/cm 2 , and when doped with WA, the J 0 of the device keeps decreasing and reaches a minimum of 3.1 × 10 –5 mA/cm 2 at a doping concentration of 0.3 wt %.…”

Section: Results and Analysismentioning

confidence: 99%

Waterborne Acrylic Resin-Modified PEDOT:PSS as a Hole-Transporting Layer for Silicon/Organic Solar Cells with Improved Efficiency and Stability

Jiang,

Zhou,

Zhang

et al. 2024

ACS Appl. Energy Mater.

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Si/PEDOT:PSS heterojunction solar cells (HSCs) are of great interest to researchers due to their low cost and simple process, but the hygroscopicity of polymer poly(3,4- ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) leads to poor stability of such devices, limiting the possibility of their further commercialization. In this research, the stability and power conversion efficiency (PCE) of Si/PEDOT:PSS HSCs were improved by doping waterborne acrylic resin (WA) in PEDOT:PSS. The experimental results show that the surface of WA-doped PEDOT:PSS films has successfully changed from hydrophilic to hydrophobic, and the stability of solar cells prepared from these films in the air has been significantly improved. The WA-doped device retains more than 80% of its initial PCE after 200 h of storage in air, whereas the corresponding undoped device has failed. Unlike general research reports, this work also provides stability data of devices at −12, 80, 120 °C, and ultraviolet (UV) illumination, respectively. The results show that the device achieved an optimal PCE of 13.37% when the WA doping concentration was 0.3 wt %; devices with high stability and high PCE are achieved.

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Section: Results and Analysismentioning

confidence: 99%

Waterborne Acrylic Resin-Modified PEDOT:PSS as a Hole-Transporting Layer for Silicon/Organic Solar Cells with Improved Efficiency and Stability

Jiang,

Zhou,

Zhang

et al. 2024

ACS Appl. Energy Mater.

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Unveiling the Spectroscopic Signatures of Poly(3,4-ethylenedioxythiophene) by Controlling Polaron and Bipolaron Concentrations

Rubio-Govea,

Opis-Basilio,

Torres

et al. 2024

J. Phys. Chem. C

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The electronic and optical properties of conductive polymers (CPs) are related to the formation of polarons and bipolarons localized along the polymer backbone. Their concentration is affected by the conformational and morphological features of the CPs, making it crucial to understand how they are affected by chain conformation and π-electron delocalization. In this work, we studied the modulation of the concentration of polarons and bipolarons in PEDOT:PSS after post-treatment with hydrazine and H 2 SO 4 , which influence the optical and electronic properties. Through a combination of electron spin resonance spectroscopy, UV−vis−NIR spectroscopy, Raman spectroscopy, and conductivity measurements, we evaluate changes in the properties of PEDOT, which are related to the chain conformation and π-electron delocalization within the polymer backbone. We present experimental evidence supporting the recently revised interpretation of the UV−vis−NIR spectrum of PEDOT:PSS, and through a combination of theoretical and experimental analysis, we propose a new interpretation of the Raman spectrum of PEDOT:PSS. Furthermore, we provide the first experimental evidence of the presence of polaron pairs in the triplet state in PEDOT:PSS, which have a spin of S = 1, which were only predicted theoretically up to this point.

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Carbon nanotubes as hole-selective contacts for high-efficiency full-area GaAs hybrid heterojunction solar cells

Mo,

Guo,

Guo

et al. 2024

J. Mater. Chem. A

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Structural Transformation of PEDOT on Si/PEDOT:PSS Hybrid Solar Cells by Doping Hydroquinone

Cited by 3 publications

References 17 publications

Waterborne Acrylic Resin-Modified PEDOT:PSS as a Hole-Transporting Layer for Silicon/Organic Solar Cells with Improved Efficiency and Stability

Waterborne Acrylic Resin-Modified PEDOT:PSS as a Hole-Transporting Layer for Silicon/Organic Solar Cells with Improved Efficiency and Stability

Unveiling the Spectroscopic Signatures of Poly(3,4-ethylenedioxythiophene) by Controlling Polaron and Bipolaron Concentrations

Carbon nanotubes as hole-selective contacts for high-efficiency full-area GaAs hybrid heterojunction solar cells

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