The role of self-assembled monolayers in electronic devices

Singh, Mandeep; Kaur, Navpreet; Comini, Elisabetta

doi:10.1039/d0tc00388c

Cited by 169 publications

(136 citation statements)

References 134 publications

(175 reference statements)

Supporting

Mentioning

136

Contrasting

Order By: Relevance

“…In self‐assembled monolayer approach, the concentration of SAM molecules plays very crucial role as both low and high concentrations can hinder the formation of ordered assembly and its reactivity. [ 3 ] Thus, the selection of SAM solution concentration is one of the most important parameter in order to form a highly ordered monolayer with minimal disorder and high reactivity to external species such as the analyte to be detected or biomolecules to be immobilized on the SAMs.…”

Section: Resultsmentioning

confidence: 99%

“…It has been found that the process of silanization requires the sufficient amount of water during the hydrolysis process; however both the excess and deficiency of water can hinder the monolayer formation. [ 3 ] In silanization process, the APTMS molecules immediately attack OH groups present on the surface (ZnO NWs in present case) and undergo hydrolysis by consuming the sufficient amount of water, which results into the formation of monolayer. As the reaction proceeds, the water molecules becomes resistive toward the surface due to the formation of monolayer on it and start reacting with the SAM molecules in the solution instead.…”

Section: Resultsmentioning

confidence: 99%

“…[ 1,2 ] Due to their novel structure that includes headgroup, backbone, and endgroup, a surface having different functionalities can be generated and this multifunctionality can be used to detect different analytes and immobilization of biomolecules. [ 3 ] During the process of SAM functionalization, the headgroup binds to the surface and the endgroup defines the surface functionalities. The backbone part of the SAM is responsible for molecular ordering.…”

Section: Introductionmentioning

confidence: 99%

“…The backbone part of the SAM is responsible for molecular ordering. [ 3 ] Due to the availability of different types of silane such as (3‐aminopropyl)trimethoxysilane (APTMS), [ 4 ] 3‐glycidoxypropyltrimethoxysilane (GLYMO), [ 5 ] n ‐octadecyltrimethoxysilane (ODS), [ 6 ] etc., surfaces having different functionalities can be created. Hence, SAM approach can also be used to improve the selectivity of sensors.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

SAM Functionalized ZnO Nanowires for Selective Acetone Detection: Optimized Surface Specific Interaction Using APTMS and GLYMO Monolayers

Singh

Kaur

Drera

et al. 2020

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

In modern days, self‐assembled monolayer (SAM) functionalized surfaces represent an interesting tool for the development of ultrasensitive and selective sensing platforms for the detection of chemical substances such as biomolecules and gases. The ability of SAM to generate different functional groups on a single surface such as zinc oxide (ZnO) can be used to immobilize biomolecules and detect different analytes such as gases, proteins, etc. Herein, SAM functionalized ZnO NW‐based sensors are developed for acetone exhaled breath analysis. ZnO NWs are synthesized using a vapor–liquid–solid mechanism and their functionalization is done with two different SAMs, i.e., (3‐aminopropyl)trimethoxysilane (APTMS) and 3‐glycidoxypropyltrimethoxysilane (GLYMO). The enhancement in the electron depletion layer resistance (and also width) due to the capturing of electrons from the ZnO NWs surface by APTMS and GLYMO molecules is found to be the major reason in their superior sensing performances. The amine (–NH2) groups of APTMS monolayer enhance the sensors selectivity toward acetone due to their reactions with acetone molecules, which produce imine in addition to water molecules. Moreover, after the functionalization with APTMS SAMs, the detection limits of the sensors are improved from 6 to 0.5 ppm, which makes these devices potential candidates for acetone exhaled breath analysis.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

SAM Functionalized ZnO Nanowires for Selective Acetone Detection: Optimized Surface Specific Interaction Using APTMS and GLYMO Monolayers

Singh

Kaur

Drera

et al. 2020

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…2D monolayer organic crystals are usually fabricated by solution‐processed methods at water/air interface, [ 14–22 ] where water surface is usually used to control the diffusion of organic solvent and serves as a substrate for the self‐assembly of organic molecules due to its relatively high surface tension and molecularly flat surface. Langmuir–Blodgett (LB) technique has been previously applied for the fast and simple fabrication of organic monolayer crystals at water/air interface.…”

Section: Figurementioning

confidence: 99%

Graphene‐Quantum‐Dots‐Induced Centimeter‐Sized Growth of Monolayer Organic Crystals for High‐Performance Transistors

Wang

Pan

et al. 2020

Advanced Materials

View full text Add to dashboard Cite

Monolayer organic crystals have attracted considerable attention due to their extraordinary optoelectronic properties. Solution self‐assembly on the surface of water is an effective approach to fabricate monolayer organic crystals. However, due to the difficulties in controlling the spreading of organic solution on the water surface and the weak intermolecular interaction between the organic molecules, large‐area growth of monolayer organic crystals remains a great challenge. Here, a graphene quantum dots (GQDs)‐induced self‐assembly method for centimeter‐sized growth of monolayer organic crystals on a GQDs solution surface is reported. The spreading area of the organic solution can be readily controlled by tuning the pH value of the GQDs solution. Meanwhile, the π–π stacking interaction between the GQDs and the organic molecules can effectively reduce the nucleation energy of the organic molecules and afford a cohesive force to bond the crystals, enabling large‐area growth of monolayer organic crystals. Using 2,7‐didecyl benzothienobenzothiopene (C10‐BTBT) as an examples, centimeter‐sized monolayer C10‐BTBT crystal with uniform molecular packing and crystal orientation is attained. Organic field‐effect transistors based on the monolayer C10‐BTBT crystals exhibit a high mobility up to 2.6 cm2 V−1 s−1, representing the highest mobility value for solution‐assembled monolayer organic crystals. This work provides a feasible route for large‐scale fabrication of monolayer organic crystals toward high‐performance organic devices.

show abstract

Ferrocene: From the Perspective of Molecular Electronics

Bennett¹,

Long²

2022

Encyclopedia of Inorganic and Bioinorganic Chemistry

View full text Add to dashboard Cite

Ferrocene has long been an object of fascination for organometallic chemists. Exhibiting high stability, interesting geometries, and exceptionally well‐defined redox chemistry, ferrocene has been adapted for a wide range of applications that span the breadth of the chemical sciences. This article specifically focuses on reviewing research where ferrocene has been applied in the field of molecular electronics. This begins with a discussion pertaining to the use of ferrocene in the formation of self‐assembled monolayers (SAMs) and their applications in switching, rectification, sensors, and the construction of memory devices. Following this, a brief overview is provided on the lesser developed work performed to elucidate the properties of single ferrocene‐containing molecules. This article provides the reader with an overview of work that has been performed toward the understanding and development of ferrocene‐containing molecular electronic devices.

show abstract

The role of self-assembled monolayers in electronic devices

Abstract: Today, the self-assembled monolayer (SAM) approach for surface functionalization is regarded as highly versatile and compelling, especially in the immobilization of biomolecules and fabrication of novel supramolecular architectures.

Cited by 169 publications

References 134 publications

SAM Functionalized ZnO Nanowires for Selective Acetone Detection: Optimized Surface Specific Interaction Using APTMS and GLYMO Monolayers

SAM Functionalized ZnO Nanowires for Selective Acetone Detection: Optimized Surface Specific Interaction Using APTMS and GLYMO Monolayers

Graphene‐Quantum‐Dots‐Induced Centimeter‐Sized Growth of Monolayer Organic Crystals for High‐Performance Transistors

Ferrocene: From the Perspective of Molecular Electronics

Contact Info

Product

Resources

About