P(g2T-TT)

CAS Number 2058240-28-9

High Performance Stretchable Redox-active Semiconducting Polymer

Designed for organic electrochemical transistors (OECTs) with fast switching speed on the microsecond scale

Specifications | MSDS | Literature and Reviews

P(g2T-TT) is a copolymer with a backbone alternating thienothiophene (TT) and 2,2'-bithiophene (BT) units with triethylene glycol (TEG) side chains in the 3,3′ positions of the bithiophene repeating units. The triethylene glycol side chains can facilitate hydration and ion penetration without compromising electronic mobility by shifting the mode of operation of aqueous electrolyte-gated transistors from interfacial to bulk doping/transport.

With triethylene glycol side chains, P(g2T-TT) films can uptake a much higher density of ions while showing a much lower degree of hydration than the PEDOT:PSS films. The p(g2T-TT) films can also show high degree of molecular ordering during electrochemical switching, demonstrating complete and reversible electrochromism and high volumetric capacitance at low operating biases.

Conjugated Polymer

Highly desirable for OECTs

Luminosyn™

High purity with batch-specific GPC data

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High Quality

Soxhlet purification

The bulk doping of p(g2T-TT) by hydrated ions allows for extraction of the volumetric capacitance of C*=240 F/cm³, a value almost six times higher than that of PEDOT:PSS, indicating a higher density of ion-accessible sites.

Luminosyn™ P(g2T-TT)

Luminosyn™ P(g2T-TT) is now available.

High Purity

P(g2T-TT) is purified by Soxhlet extraction with methanol, hexane and chlorobenzene under an argon atmosphere

Batch-specific GPC Data

Have confidence in what you are ordering; batch-specific GPC data for your thesis or publications

Large Quantity Orders

Plan your experiments with confidence with polymers from the same batch

General Information

CAS Number	2058240-28-9
Full Name	Poly[2-(3,3′-bis(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)-[2,2’-bithiophen]-5-yl)thieno[3,2-b]thiophene]
Chemical Formula	(C₂₈H₃₄O₈S₄)_n
HOMO/LUMO	HOMO = 5.2 eV (E_g = 1.74 eV) [1]
Absorption	λ_max = 597 nm (in film)
Form	Blue powder/fibres
Processing Solvents	DMF, Chloroform (typically 5 mg/ml in chloroform)
Synonyms	pg2T-TT, g2T-TT
Classification / Family	Polythiophenes, Redox-active semiconducting polymer (RASP), Organic electrochemical transistors (OECTs), Electrocardiogram (ECG) recording, Biosensors

Batch Details

Batch Number	M_w	M_n	PDI	Stock Info
M2475A1	5,778	3,777	1.53	In stock

Chemical Structure

MSDS Documentation

P(g2T-TT) MSDS Sheet

Literature and Reviews

R. Hallani et al. (2021); Regiochemistry-Driven Organic Electrochemical Transistor Performance Enhancement in Ethylene Glycol-Functionalized Polythiophenes, J. Am. Chem. Soc., 143 (29), 11007–11018; DOI: 10.1021/jacs.1c03516.
Y. Zhang et al. (2023); Combined Optical, Gravimetric, and Electrical Operando Investigation of Structural Variations in Polymeric Mixed Conductors, Adv. Funct. Mater., 33 (16), 2214380. DOI: 10.1002/adfm.202214380.
A. Giovannitti et al. (2016); Controlling the mode of operation of organic transistors through side-chain engineering, PNAS, 113 (43), 12017–12022; DOI: 10.1073/pnas.1608780113.

E. Stein et al. (2022); Ambipolar blend-based organic electrochemical transistors and inverters, Nat. Commun., 13, 5548; DOI: 10.1038/s41467-022-33264-2.
R. Wu et al. (2023); Quantitative Composition and Mesoscale Ion Distribution in p-Type Organic Mixed Ionic-Electronic Conductors, ACS Appl. Mater. Interfaces, 15 (25), 30553–30566; DOI: 10.1021/acsami.3c04449.
T. Quill et al. (2023); An ordered, self-assembled nanocomposite with efficient electronic and ionic transport, Nat. Mater., 22, 362–368; DOI: 10.1038/s41563-023-01476-6.