Self-Organization of PEDOT:PSS Induced by Green and Water-Soluble Organic Molecules

Yıldırım, Erol
Wu, Gang
Tan, Teck Leong
Xu, Jianwei
Yang, Shuo-Wang
Water-soluble poly(3, 4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most prominent commercial polymer used in photovoltaic cells and thermoelectric devices. Experimental studies in the last decade have shown that it is possible to enhance the low electrical conductivity of PEDOT:PSS by solvent treatment, either in-solution or by post-treatment methods. The origin and mechanism of electrical conductivity improvement varied according to different experimental studies. We had recently shown that phase separation of PEDOT:PSS is key to the electrical conductivity enhancement, where dissolution of insulating PSS shell results in the release of conducting PEDOT grains for aggregation. In this study, we demonstrated that dimethyl sulfone (DMSO2), which is a nontoxic, water-soluble, edible organic molecule, can be a greener alternative to the widely used dimethyl sulfoxide for solvent treatment of PEDOT:PSS chains, via a combined experimental and multiscale molecular modeling approaches. Moreover, crystalline DMSO2 nanowire surfaces that remain in the PEDOT:PSS films act as a template for the self-alignment of PEDOT chains that enhance the electrical conductivity further.


Rediscovery of Scorzonera amasiana Hausskn. and Bornm. - A threatened endemic species in turkey
Karaer, Fergan; Celep, Ferhat (2007-12-01)
Scorzonera amasiana Hausskn. and Bornm. was described from type specimens collected by J.F.N. Bornmueller in 1889 but it was not collected again until 1993, when it was found near Amasya, Turkey. Populations of S. amasiana were quite small at that limited locations and were vulnerable to human impacts. Therefore, suitable conservation strategies should be developed immediately in order to protect the species from probable extinction. Here, an additional three small populations are reported. Brief history, m...
Insertion of Fischer Carbene Complexes into the Carbon-Carbon Bond of 1,2-Diphenylcyclopropenone: Formation of Cyclobutenones and o- and p-Methoxyphenol Derivatives
Zora, Metin (American Chemical Society (ACS), 1994-08-01)
Synthesis and characterization of fluorine-substituted polyanilines
Cihaner, A; Önal, Ahmet Muhtar (Elsevier BV, 2001-09-01)
Poly(2-fluoroaniline), P2FAN, poly(3-fluoroaniline). P3FAN. and poly(4-fluoroaniline), P4FAN, have been synthesized from fluorine substituted aniline monomers in aqueous acidic medium using potassium dichromate as oxidizing agent. Characterization of polymer products has been carried out using FTIR, and NMR spectroscopic techniques. Thermal analysis of polyfluoroaniline powders was also investigated using differential scanning calorimetry and thermogravimetric analysis. To compare the structural properties ...
Pyramidalized double bonds containing endoperoxide linkages: Photooxygenation of dimethyl cis-3,8-dihydroheptalene-3,8-dicarboxylate
Saracoglu, N; Menzek, A; Sayan, S; Salzner, U; Balcı, Metin (1999-09-03)
Diels-Alder cyclo;addition utilizing singlet oxygen as the dienophile with dimethyl cis-3,8-dihydraheptalene-3,8-dicarboxylate (5) has been investigated, and monoaddition product 7 has been isolated. The addition of a second singlet oxygen to the cycloheptatriene unit in 7 gave syn-bis(norcaradiene) bis(endoperoxide) 4. H-1 NMR spectral studies and theoretical calculations indicate the increased pyramidalization in syn-4 compared with carbon analogue. The increased pyramidalization results from hyperconjuga...
Rediscovery of Dichoropetalum aureum (Umbelliferae) in South Anatolia (Turkey)
ADIGÜZEL, NEZAKET; BANİ, BARIŞ; Mavi, Ozlem (2011-02-07)
Dichoropetalum aureum (BOISS. & BALANSA) PIMENOV & KLJUYKOV was collected from Turkey for the first time in 1856 and described in 1859. Although the species was collected from Lebanon and Israel, it has not been recorded from Turkey since 1856. This study comprises the recollection of Dichoropetalum aureum from the type locality and neighbouring areas after 150 years and also an expanded morphological description. Ecological parameters such as soil and climatic features are given in addition to information ...
Citation Formats
E. Yıldırım, G. Wu, T. L. Tan, J. Xu, and S.-W. Yang, “Self-Organization of PEDOT:PSS Induced by Green and Water-Soluble Organic Molecules,” JOURNAL OF PHYSICAL CHEMISTRY C, pp. 9745–9755, 2019, Accessed: 00, 2020. [Online]. Available: