Opto-electrical and morphological characterization of water soluble conjugated polymers for eco-friendly hybrid solar cells

Thalluri, Gopala Krishna V. V.; Bolsée, Jean-Christophe; Gadisa, Abay; Parchine, Mikhail; Boonen, Tine; D’Haen, Jan; Böyükbayram, A. Elif; Vandenbergh, Joke; Cleij, Thomas J.; Lutsen, Laurence; Vanderzande, Dirk; Manca, Jean

doi:10.1016/j.solmat.2011.07.010

Cited by 24 publications

(30 citation statements)

References 38 publications

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“…Although, these values are just rough approximations calculated at one V G and using a C * extracted from one impedance plot, the trend is clear and correlates with the aggregation behavior of the polymers revealed by UV–vis absorption measurements: as PTHS − TMA + shows the most aggregation and with that the densest π–π stacking, it is expected to have a higher hole mobility than the less aggregated PTHS − TEA + and PTHS − TBA + . The mobility values for PTHS − X + may be less than for neutral polythiophenes, if the aggregation is hindered due to the incorporation of charged units on side chains . Moreover, the addition of crosslinker disturbs the aggregation of the conjugated backbones.…”

Section: Resultsmentioning

confidence: 99%

Smaller Counter Cation for Higher Transconductance in Anionic Conjugated Polyelectrolytes

Schmidt

ElMahmoudy

Malliaras

et al. 2017

Macro Chemistry & Physics

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Conjugated polyelectrolytes (CPEs) are a focus of research because combine their inherent electrical conductivity and the ability to interact with ions in aqueous solutions or biological systems. However, it is still not understood to what degree the counter ion in CPEs influences the properties of the CPE itself and the performance of electronic transducers. In order to investigate this, three different conjugated polyelectrolytes, poly(6‐(thiophen‐3‐yl)hexane‐1‐sulfonate)s (PTHS−X+), are synthesized, which have the same polythiophene backbone but different X+ counter ions: the bulky tetrabutylammonium (TBA+), tetraethylammonium (TEA+), and the smallest tetramethylammonium (TMA+). At the interface with biological systems, thin CPE films have to be stable in an aqueous environment and should allow the inward and outward flow of ions from the electrolyte. Since the studied PTHS−X+ have different solubilities in water, the optical properties of pristine PTHS−X+ as well as of crosslinked PTHS−X+ via UV–vis absorption spectroscopy are investigated additionally. PTHS−TMA+ exhibits better aggregation, fast interdiffusion of ions, and fast recovery from the oxidized state. Additionally, spectroelectrochemical and cyclic voltammetric as well as electrochemical capacitance investigations show that PTHS−TMA+ can be oxidized to a higher degree. This leads to a better performance of PTHS−TMA+‐based organic electrochemical transistors.

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Section: Resultsmentioning

confidence: 99%

Smaller Counter Cation for Higher Transconductance in Anionic Conjugated Polyelectrolytes

Schmidt

ElMahmoudy

Malliaras

et al. 2017

Macro Chemistry & Physics

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show abstract

“…While proper viscosity of aqueous solution is important for the ASCs in order to obtain enough thickness of the active layer. Manca and co-workers [44] have fabricated a series of water-soluble polymer named P3PmTs (m = 4, 5, 6, 7). The structures of the P3PmTs are shown in Fig.…”

Section: Polymer-ncs Hscs Employing Aqueous Approachesmentioning

confidence: 99%

Preparation of polymer–nanocrystals hybrid solar cells through aqueous approaches

et al. 2012

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“…In 2006, Qiao et al reported a water-soluble conjugated polyelectrolyte based on thiophene for HSCs. 14,28 However, the incorporation of the green-solvent-processed conjugated polyelectrolytes in HSCs is still limited.…”

Section: Introductionmentioning

confidence: 99%

Green-solvent-processed hybrid solar cells based on donor–acceptor conjugated polyelectrolyte

et al. 2018

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Opto-electrical and morphological characterization of water soluble conjugated polymers for eco-friendly hybrid solar cells

Cited by 24 publications

References 38 publications

Smaller Counter Cation for Higher Transconductance in Anionic Conjugated Polyelectrolytes

Smaller Counter Cation for Higher Transconductance in Anionic Conjugated Polyelectrolytes

Preparation of polymer–nanocrystals hybrid solar cells through aqueous approaches

Green-solvent-processed hybrid solar cells based on donor–acceptor conjugated polyelectrolyte

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