Oxy Phosphorus Triazatetrabenzocorrole as a p-Type Organic Semiconductor in Organic Thin Film Transistors DOI

Mélanie Cyr,

Halynne R. Lamontagne, Benoît H. Lessard

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 27, 2024

Triazatetrabenzocorroles (Tbc) consist of a class molecules derived from the phthalocyanine and porphyrin families that are less commonly synthesized utilized in applications for organic electronics. In this work, we have oxy phosphorus Tbc (POTbc) integrated it as an semiconductor thin film transistors (OTFTs). Both bottom-gate bottom-contact (BGBC) top-contact (BGTC) OTFTs fabricated with POTbc resulted clear p-type performance both air under inert conditions. A series solution-based silanes thermally evaporated p-sexiphenylene were dielectric surface treatments means to modify energy prior depositing films. Other fabrication conditions also explored, such deposition rate POTbc, substrate temperature during deposition, post-deposition annealing. Of these, optimized POTbc-based obtained n-octadecyltrichlorosilane (ODTS)-coated substrates, heated which afforded average field effect mobility 8.18 × 10–3 cm2 V–1 s–1 threshold voltage −23.2 V. X-ray diffraction polarized Raman microscopy indicated significant increase crystallinity morphology more molecular face-on configuration when deposited on ODTS-treated surfaces. These results represent first report using including structure–property relationships related optimization device performance.

Language: Английский

Enhancing Sensitivity in Gas Detection: Porous Structures in Organic Field-Effect Transistor-Based Sensors DOI Creative Commons

Soohwan Lim,

Ky V. Nguyen, Wi Hyoung Lee

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(9), P. 2862 - 2862

Published: April 30, 2024

Gas detection is crucial for detecting environmentally harmful gases. Organic field-effect transistor (OFET)-based gas sensors have attracted attention due to their promising performance and potential integration into flexible wearable devices. This review examines the operating mechanisms of OFET-based explores methods improving sensitivity, with a focus on porous structures. Researchers achieved significant enhancements in sensor by controlling thickness free volume organic semiconductor layer. Additionally, innovative fabrication techniques like self-assembly etching been used create structures, facilitating diffusion target molecules, response recovery. These advancements structure suggest future sensors, offering increased sensitivity selectivity across various applications.

Language: Английский

Citations

6
Sensing Interfaces Engineering for Organic Thin Film Transistors‐Based Biosensors: Opportunities and Challenges DOI
Siyu Li, Yuchen Duan, Weigang Zhu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 10, 2024

Abstract Organic thin film transistors (OTFTs) enable rapid and label‐free high‐sensitivity detection of target analytes due to their low cost, large‐area processing, biocompatibility, inherent signal amplification. At the same time, freedom synthesis, tailorability, functionalization organic semiconductor materials ability be combined with flexible substrates make them one ideal platforms for biosensing. However, OTFTs‐based biosensors still face significant challenges, such as unexpected surface adsorption, disordered conformation, inhomogeneous graft density, flexibility probe molecules that biological sensing probes would during immobilization. In this review, efficient immobilization strategies based on OTFTs developed in last 5 years are highlighted. First, classified according interface. Second, a comprehensive discussion types is presented. Third, three commonly used methods immobilizing challenges briefly described. Finally, applications liquid phase summarized. This review provides timely optimization interface engineering so interfaces will contribute development high‐performance biosensors.

Language: Английский

Citations

4
Boosted organic gas sensing performance through the strong interaction between a two-dimensional magnesium silicate molecular sieve and target gas analytes DOI

Duho Jang,

Sungjoon Kweon, Ming Hong

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161079 - 161079

Published: Feb. 1, 2025

Language: Английский

Citations

0
PCDTBT: Force Field Parameterization and Properties by Molecular Dynamics Simulation DOI Creative Commons

Konstantinos Kordos,

Konstantinos Kaklamanis,

Maria Andrea

et al.

The Journal of Physical Chemistry B, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Conjugated polymers are indispensable building blocks in a variety of organic electronics applications such as solar cells, light-emitting diodes, and field-effect transistors. Poly[N-9′-heptadecanyl-2,7-carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) is carbazole-benzothiadiazole-based copolymer with donor–acceptor structure, consisting electron-donating electron-withdrawing subunits featuring low band gap. In this work, the General Amber Force Field extended two ways, specifically for modeling PCDTBT. First, set partial atomic charges derived that mimic long chain adequately describe different conformations may be encountered bulk environment. Second, torsional terms reparametrized all dihedral angles backbone via ab initio computations. Subsequently, series large-scale Molecular Dynamics simulations employed to construct equilibrate ensembles three PCDTBT oligomers using starting oligomer chains. Several structural properties computed, namely mass density, stiffness (through persistence length Kuhn segment length), glass transition temperature. Our results good agreement available literature data, demonstrating suitability new parametrization.

Language: Английский

Citations

0
Modulating the structural framework with electron-withdrawing groups and studying their effects on charge mobility in a new series of D-A-D based organic semiconductors DOI
Fatma Mohamed A. Abid, Sagar Sharma, Basanta Kumar Rajbongshi

et al.

Materials Science in Semiconductor Processing, Journal Year: 2025, Volume and Issue: 195, P. 109534 - 109534

Published: May 2, 2025

Language: Английский

Citations

0
High-performance organic thin-film transistors: principles and strategies DOI

Zijuan Hao,

Zhiyun Wu,

Shuiren Liu

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(26), P. 9427 - 9454

Published: Jan. 1, 2024

Organic thin film transistors (OTFTs) mark a breakthrough in flexible electronics, offering advantages over traditional inorganic semiconductors through their adaptability, cost efficiency, and low-temperature production.

Language: Английский

Citations

3
Vertical Phase Separation in Blended Organic Semiconducting Films and Impact on Their Electrical and Direct X‐Ray Detection Properties DOI Creative Commons
Marilena Giglio, Elisabetta Colantoni, Ilaria Fratelli

et al.

Advanced Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

Abstract Blends of small‐molecule organic semiconductors (OSCs) and insulating polymers in Organic Field‐Effect Transistors (OFETs) are mainly used to assist the solution‐processing OSCs, but they can also reduce interfacial charge traps due vertical phase separation. Such known affect both electrical response radiation‐induced collection capability these devices. This study aims optimize separation blend films 1,4,8,11‐tetramethyl‐6,13‐triethylsilylethynyl pentacene (TMTES) polystyrene (PS) minimize trap density at semiconductor/dielectric interface, thereby enhancing performance direct X‐ray detection sensitivity OFETs. A PS mass concentration 33% is identified as optimal for achieving high‐quality favorable film morphology. formulation led with reduced hole improved capacity, demonstrating a field‐effect mobility (1.3 ± 0.4) cm 2 V −1 s (5.6 0.2) × 10 3 µC Gy −2 low applied voltages. Remarkably, molecular weight does not significantly impact separation, thin morphology, or properties. These findings crucial development high‐performance OFETs their application detectors.

Language: Английский

Citations

0
Organic Thin Film Transistor-Based Cannabinoid Sensors DOI
Benoît H. Lessard

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(5), P. 3006 - 3012

Published: May 1, 2024

The legalization of cannabis for medical and recreational use has created global legal markets, resulting in economic growth job opportunities. Δ9-Tetrahydrocannabinol (THC) the nonpsychoactive cannabidiol (CBD) are primary bioactive compounds from plant Cannabis sativa sensors their detection vital monitoring effects on patients, understanding strain effects, ensuring accurate potency information. Current methods require specialized facilities, making low-cost hand-held desirable public safety, regulatory compliance, industry efficiency. Electrical sensors, such as organic thin-film transistors (OTFTs), offer advantages over optical metal phthalocyanines (MPcs) show promise an active semiconducting sensing material. Through both molecular interactions thin film reorganization, MPc-based OTFTs have been demonstrated to enable differentiation THC CBD vapor solution. This spotlight article discusses recent advances discovery optimization MPc based OTFT highlights promising future.

Language: Английский

Citations

1
(F5PhO)2-F16-SiPc as an Air-Stable, High-Performance n-Type Semiconductor with Poor Cannabinoid Sensing Capabilities DOI Creative Commons
Halynne R. Lamontagne,

Mélanie Cyr,

Mário C. Vebber

et al.

RSC Applied Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

(F 5 PhO) 2 -F 16 -SiPc is an air stable, n-type semiconductor for organic thin-film transistors (OTFTs), however the structural changes that enhance its stability likely cause lack of response to cannabinoids in a sensor.

Language: Английский

Citations

1
Charge Transfer in Molecular Cocrystals: A Plane Wave vs Localized-Orbital View─Structural Information Obtained from Calculated Raman and IR Phonons DOI
Fabio Biffoli, Davide Vanossi, Elisabetta Venuti

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(33), P. 14046 - 14055

Published: Aug. 10, 2024

This article aims at laying the foundation for development of electronic structure–property relationships in field charge-transfer (CT) organic semiconductors by studying low-frequency phonon response donor–acceptor (DA) compounds. In this article, it is shown and discussed how why frequencies their delocalization depend on interplay between single-molecule properties crystal structures. These results are obtained combining from state-of-the-art quantum–mechanical calculations, carried out within both localized orbitals a plane wave paradigm, with simple classical models. CT compounds perylene (Pery) as donor FnTCNQ (n = 0, 4) acceptors considered.

Language: Английский

Citations

1