AgTFSI as p‐Type Dopant for Efficient and Stable Solid‐State Dye‐Sensitized and Perovskite Solar Cells

Bai, Xu; Huang, Jing; Ågren, Hans; Kloo, Lars; Hagfeldt, Anders; Sun, Licheng

doi:10.1002/cssc.201402678

Cited by 121 publications

(102 citation statements)

References 42 publications

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“…Considering its extraordinary electrochemical stability [13,28,29], AgTFSI, a typical one-electron oxidizer (hole dopant) [30], was used for a p-type dopant. The addition of AgTFSI gradually changed the spectra, achieving (1) the complete suppression of the S 11 band (0.6–0.9 eV), and (2) the significant evolution of one-dimensional plasmon resonance in the MIR region (< 0.6 eV).…”

Section: Resultsmentioning

confidence: 99%

Thickness-dependent thermoelectric power factor of polymer-functionalized semiconducting carbon nanotube thin films

Nonoguchi

Takata

Goto

et al. 2018

Science and Technology of Advanced Materials

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The effects of polymer structures on the thermoelectric properties of polymer-wrapped semiconducting carbon nanotubes have yet to be clarified for elucidating intrinsic transport properties. We systematically investigate thickness dependence of thermoelectric transport in thin films containing networks of conjugated polymer-wrapped semiconducting carbon nanotubes. Well-controlled doping experiments suggest that the doping homogeneity and then in-plane electrical conductivity significantly depend on film thickness and polymer species. This understanding leads to achieving thermoelectric power factors as high as 412 μW m−1 K−2 in thin carbon nanotube films. This work presents a standard platform for investigating the thermoelectric properties of nanotubes.

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Section: Resultsmentioning

confidence: 99%

Thickness-dependent thermoelectric power factor of polymer-functionalized semiconducting carbon nanotube thin films

Nonoguchi

Takata

Goto

et al. 2018

Science and Technology of Advanced Materials

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“…The mechanism of chemical doping has been investigated intensively for DSSCs, and spiro-to-spiro + transition is mainly responsible for charge carrier transport [190,191]. Upon suitable doping, several key parameters that closely correlate to device performance have been studied carefully, such as redox potentials relating to doping levels [192,193], stability [194], and spiro-to-spiro + conversion ratios [195]. Recently, Abate et al pointed out certain protic ionic liquid dopings involved in spiro-OMeTAD molecular interactions [195].…”

Section: Interface Engineering Hole Transport Materials (Htm)mentioning

confidence: 99%

Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications

et al. 2015

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The dawn of a new era in optoelectronic technologies has emerged with the recent development of the organic-inorganic hybrid halide perovskite. Its exceptional attributes, including high carrier mobility, an adjustable spectral absorption range, long diffusion lengths, and the simplicity and affordability of fabrication render it one of the most exceptional and market-competitive optoelectronic materials for applications in photovoltaics, light emitting diodes (LED), photodetectors, lasers, and more. Moreover, its versatility in device architecture and ability to achieve relatively high performance devices via various processing techniques makes perovskites a highly promising material for various practical applications. Here, we review the organic-inorganic hybrid halide perovskite and delve into its recent progress and relevant applications. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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“…[18] However, the conductivity of pristine spiro-OMeTAD is too low to meet the requiremento fh igh photovoltaic performance of solar cells. [30] These dopants, however,s uffer from poor solubility in organic solvents, high volatility,h igh light absorption in the visible region, or/and need complicated synthesis procedure. [21] Oxidants prevalently dope into spiro-OMeTAD to generate cation radicals.…”

Section: Introductionmentioning

confidence: 99%

Benzoyl Peroxide as an Efficient Dopant for Spiro‐OMeTAD in Perovskite Solar Cells

Liu

Fan²,

Zhang

et al. 2017

ChemSusChem

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Although organic small molecule spiro-OMeTAD is widely used as a hole-transport material in perovskite solar cells, its limited electric conductivity poses a bottleneck in the efficiency improvement of perovskite solar cells. Here, a low-cost and easy-fabrication technique is developed to enhance the conductivity and hole-extraction ability of spiro-OMeTAD by doping it with commercially available benzoyl peroxide (BPO). The experimental results show that the conductivity increases several orders of magnitude, from 6.2×10 S cm for the pristine spiro-OMeTAD to 1.1×10 S cm at 5 % BPO doping and to 2.4×10 S cm at 15 % BPO doping, which considerably outperform the conductivity of 4.62×10 S cm for the currently used oxygen-doped spiro-OMeTAD. The fluorescence spectra suggest that the BPO-doped spiro-OMeTAD-OMeTAD layer is able to efficiently extract holes from CH NH PbI and thus greatly enhances the charge transfer. The BPO-doped spiro-OMeTAD is used in the fabrication of perovskite solar cells, which exhibit enhancement in the power conversion efficiency.

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AgTFSI as p‐Type Dopant for Efficient and Stable Solid‐State Dye‐Sensitized and Perovskite Solar Cells

Cited by 121 publications

References 42 publications

Thickness-dependent thermoelectric power factor of polymer-functionalized semiconducting carbon nanotube thin films

Thickness-dependent thermoelectric power factor of polymer-functionalized semiconducting carbon nanotube thin films

Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications

Benzoyl Peroxide as an Efficient Dopant for Spiro‐OMeTAD in Perovskite Solar Cells

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