Highly conductive PEDOT:PSS films prepared through a treatment with zwitterions and their application in polymer photovoltaic cells

Xia, Yijie; Zhang, Hongmei; Ouyang, Jianyong

doi:10.1039/c0jm01593h

Cited by 198 publications

(175 citation statements)

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“…The variations in the band stem from the changes in the electronic structure of PEDOT chains in PEDOT:PSS film upon additive treatment. 53 This change in Raman spectra is similar to that of EG treated PEDOT: PSS film observed by Ouyang et al 42 They proposed that both coil and extended linear conformations present in a PEDOT:PSS film, and some of the coil conformations turn into linear conformation after EG solvent treatment. The benzoic structure may be favorable for a coil conformation and quinoid structure may be favorable for linear conformation.…”

Section: Resultssupporting

confidence: 66%

Influence of solvent treatment with fluoro compounds on the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) polymer as a hole transport layer in polymer solar cells

Kumar

Shin

et al. 2014

J. Photon. Energy

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Abstract. We prepared high conducting poly (3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) by solvent additives for using as a hole transport layer (HTL) in polymer solar cells (PSCs). PEDOT:PSS films treated with fluoro compounds of hexafluoroacetone (HFA) and hexafluoroisoproponal (HFIPA) with various concentrations show a significant enhancement in electrical conductivity without compromising optical transparency. The conductivity increased from 0.2 to 1053 and 746 S∕cm after 4 vol. % HFA and 6 vol. % HFIPA treatments, respectively. The high performance of the PEDOT:PSS layer is attributed to preferential phase segregation of PEDOT:PSS with HFA and HFIPA solvent mixture treatment methods. The improved performance of PSC was dependent on the structure of organic solvents and the concentration of fluoro compounds in PEDOT:PSS solution. Using these optimized layers, conjugated PSCs with a poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5 thiophenediyl] polymer:[6,6]-phenyl-C71-butyric acid methyl esters (PCDTBT∶PC 71 BM) bulk heterojunction have been produced. The high power conversion efficiency (PCE) of 4.10% and 3.98% were observed for PEDOT:PSS films treated with 4 vol. % HFA and 6 vol. % HFIPA treatments, respectively. The obtained results show that PEDOT:PSS optimized with HFA and HFIPA organic solvents can be a very promising candidate for transparent anode buffer layer in the low cost organic solar cell devices. © The Authors.Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Resultssupporting

confidence: 66%

Influence of solvent treatment with fluoro compounds on the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) polymer as a hole transport layer in polymer solar cells

Kumar

Shin

et al. 2014

J. Photon. Energy

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“…This ISFET was tested for various pH values. Figure 12) PEDOT:PSS is prepared through a treatment with aqueous solutions of zwitterions Good conductive polymer that exhibits good performance in terms of response time, sensitivity and repeatability [31][32][33] 2 SU-8 photoresist (structure is shown in Figure 13)…”

Section: Polymers For Ph Measurementmentioning

confidence: 99%

Review of polymer-based sensors for agriculture-related applications

Palaparthy¹,

Baghini²,

Singh³

2013

Emerging Materials Research

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Advancements in micro-electro-mechanical system (MEMS) and nano-electro-mechanical system (NEMS) technologies IntroductionIn agriculture, soil plays an important role in the overall yield of crop production. Although it is expected to enhance the yield by applying fertilizers, lack or excess levels of soil nutrients should be monitored. In general, for optimal control of soil conditions, it is necessary to measure nutrient content, moisture and pH levels, air humidity, temperature and composition of the soil at regular intervals. It is important to test the soil parameters to determine fertility, expected growth potential of the soil and measure nutrient deficiencies. 'pH' level is a measure of the acidity or basicity of the soil. Soil temperature influences crop growth since seeds, plant roots and microorganisms within the soil will not survive below some threshold temperature. Knowledge of soil humidity is important because it affects water-related reactions in the plants such as photosynthesis, pollination and even occurrence of plant diseases.1 Soil monitoring will also be useful for providing the basis for productions from soil such as food as well as controlling and regulating environmental interactions and sustaining biodiversity. Advancements in micro-electro-mechanical systems (MEMS) and nano-electro-mechanical systems (NEMS) as well as development of various chemical compounds has led to various methods and techniques for health monitoring and study of the soil. MEMS structures may be simple with no moving parts or be extremely complex with multiple moving elements under the control of integrated circuits. NEMS are next-generation MEMS devices, which are mainly in the nanometer scale. As a result, they are of low mass, high mechanical resonance frequencies, potentially large quantum mechanical effects such as zero-point motion, and a high surface-to-volume ratio that is useful for surface-based sensing mechanism.3 Figure 1 shows the structure of two commonly used MEMS structures: MEMS SU-8 polymer cantilever and MEMS microheater having suspended serpentine silicon beam as filament. 4,5 In this article, the authors present a review on reported polymers that are used for sensing various nutrients (which are also found in the soil) such as soil moisture, pH value and humidity. A polymer is

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“…And PEDOT:PSS is a water-soluble polymer which has high conductivity, a transmission window in the visible spectral range, and an excellent chemical and thermal stability [7]. This type of Si/PEDOT:PSS hybrid solar cell combines the superior absorption property of Si in a wide spectrum range and the advantage of aqueous solution-based processes for PED-OT:PSS [4], which avoids an expensive high-temperature process and promises a low-cost photovoltaic technique with the potential to realize a power conversion efficiency (PCE) as high as 22% in theory [5].…”

Section: Introductionmentioning

confidence: 99%

“…Their high thermal budget accounts for~30% of the total manufacturing cost of silicon (Si) solar cells [2]. To reduce the fabrication cost, the low-temperature solar cell concepts based on the organic/inorganic hybrid heterojunctions, particularly the Si/poly (3,4-ethylenedioxythiophene):-poly(styrenesulfonate) (Si/PEDOT:PSS), have attracted significant research interest in recent years [3][4][5][6]. Si has a strong absorption ability in a very wide spectrum range and very excellent carrier transport ability.…”

Section: Introductionmentioning

confidence: 99%

“…Since the first crystalline n-Si/PEDOT:PSS hybrid solar cell was reported in 2010 [4], great efforts, including the interface engineering [6,8], treatment of PEDOT:PSS [9,10], doping of the Si substrate [11], passivation on the device surface [12], nanoparticles [13,14], and nanostructured surfaces [15][16][17], have been devoted to improve the device performance. Among these strategies, the treatment of the hole-transporting layer of PEDOT:PSS is a very simple and effective method.…”

Section: Introductionmentioning

confidence: 99%

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Hole-Transporting Layer Treatment of Planar Hybrid n-Si/PEDOT:PSS Solar Cells with Power Conversion Efficiency up to 14.5%

Zhang

Guo

et al. 2017

International Journal of Photoenergy

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A systematical investigation was carried out into the effects of the hole-transporting layer treatment of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) on the performance of planar hybrid n-Si/PEDOT:PSS solar cells. Triton X-100 and ethylene glycol (EG) were chosen to improve the conductivity and surface morphology of the PEDOT:PSS film. It was found that the annealing temperature has a great influence on the PEDOT:PSS material properties and the corresponding device performance. By optimizing the annealing temperature, the conductivity of the PEDOT:PSS film doped with Triton X-100 and EG could be enhanced by a factor of more than three orders. And the corresponding device also shows record power conversion efficiency as high as 14.5% with an open circuit voltage of 0.627 V, a short circuit current of 32.6 mA/cm 2 , and a fill factor of 70.7%.

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Highly conductive PEDOT:PSS films prepared through a treatment with zwitterions and their application in polymer photovoltaic cells

Cited by 198 publications

References 62 publications

Influence of solvent treatment with fluoro compounds on the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) polymer as a hole transport layer in polymer solar cells

Influence of solvent treatment with fluoro compounds on the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) polymer as a hole transport layer in polymer solar cells

Review of polymer-based sensors for agriculture-related applications

Hole-Transporting Layer Treatment of Planar Hybrid n-Si/PEDOT:PSS Solar Cells with Power Conversion Efficiency up to 14.5%

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