Controlled Ambipolar Charge Transport Through a Self-Assembled Gold Nanoparticle Monolayer

2012 ◽  
Vol 24 (9) ◽  
pp. 1247-1251 ◽  
Author(s):  
Ye Zhou ◽  
Su-Ting Han ◽  
Zong-Xiang Xu ◽  
V. A. L. Roy
Keyword(s):  
Charge Transport ◽  
Gold Nanoparticle ◽  
Self Assembled

Self-Assembled Gold Nanoparticle/Alkanedithiol Films:  Preparation, Electron Microscopy, XPS-Analysis, Charge Transport, and Vapor-Sensing Properties†

2003 ◽  
Vol 107 (30) ◽  
pp. 7406-7413 ◽  
Author(s):  
Yvonne Joseph ◽  
Isabelle Besnard ◽  
Miriam Rosenberger ◽  
Berit Guse ◽  
Heinz-Georg Nothofer ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Charge Transport ◽  
Gold Nanoparticle ◽  
Xps Analysis ◽  
Sensing Properties ◽  
Vapor Sensing ◽  
Self Assembled

Detecting spatial rearrangement of individual gold nanoparticle heterodimers

2019 ◽  
Vol 21 (19) ◽  
pp. 10146-10151
Author(s):  
Dániel Péter Szekrényes ◽  
Szilárd Pothorszky ◽  
Dániel Zámbó ◽  
András Deák
Keyword(s):  
Gold Nanoparticle ◽  
Spatial Arrangement ◽  
Gold Nanosphere ◽  
Self Assembled

Spatial arrangement of self-assembled gold nanosphere/nanorod heterodimers and their reorgaization upon drying detected using polarization-resolved scattering spectroscopy.

scholarly journals Mechanical and Charge Transport Properties of Alkanethiol Self-Assembled Monolayers on a Au(111) Surface:  The Role of Molecular Tilt

Langmuir ◽  
2008 ◽  
Vol 24 (5) ◽  
pp. 2219-2223 ◽  
Author(s):  
Yabing Qi ◽  
Imma Ratera ◽  
Jeong Y. Park ◽  
Paul D. Ashby ◽  
Su Ying Quek ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Charge Transport of Alkanethiol Self-Assembled Monolayers in Micro-Via Hole Devices

2006 ◽  
Vol 6 (11) ◽  
pp. 3487-3490 ◽  
Author(s):  
Tae-Wook Kim ◽  
Gunuk Wang ◽  
Hyunwook Song ◽  
Nak-Jin Choi ◽  
Hyoyoung Lee ◽  
...  
Keyword(s):  
Charge Transport ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Via Hole ◽  
Self Assembled

Self-Assembled Gold Nanoparticle Thin Films with Nonmetallic Optical and Electronic Properties

Langmuir ◽  
1998 ◽  
Vol 14 (19) ◽  
pp. 5425-5429 ◽  
Author(s):  
Mathias Brust ◽  
Donald Bethell ◽  
Christopher J. Kiely ◽  
David J. Schiffrin
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Gold Nanoparticle ◽  
Optical And Electronic Properties ◽  
Self Assembled

scholarly journals Facile Detection and Quantification of Acetamiprid Using a Portable Raman Spectrometer Combined with Self-Assembled Gold Nanoparticle Array

Chemosensors ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 327
Author(s):  
Panxue Wang ◽  
Yan Sun ◽  
Li Wang ◽  
Xiang Li ◽  
Miaomiao Liu ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Correlation Coefficients ◽  
Nanoparticle Array ◽  
Sers Signal ◽  
Sers Substrates ◽  
Specificity And Sensitivity ◽  
Exciting Opportunity ◽  
Sers Detection ◽  
Self Assembled ◽  
Detection And Quantification

Rapid and facile determination of pesticides is critically important in food and environmental monitoring. This study developed a self-assembled gold nanoparticle array based SERS method for highly specific and sensitive detection of acetamiprid, a neonicotinoid pesticide that used to be difficult in SERS analysis due to its low affinity with SERS substrates. SERS detection and quantification of acetamiprid was conducted with self-assembled gold nanoparticle arrays at the interface of chloroform and water as the enhancing substrate. Since targets dissolved in chloroform (organic phase) also have access to the hot-spots of Au NP array, the developed method exhibited good sensitivity and specificity for acetamiprid determination. Under the optimal conditions, SERS intensities at Raman shifts of 631 cm−1 and 1109 cm−1 displayed a good linear relationship with the logarithm concentration of acetamiprid in the range of 5.0 × 10−7 to 1.0 × 10−4 mol/L (0.11335 ppm to 22.67 ppm), with correlation coefficients of 0.97972 and 0.97552, respectively. The calculated LOD and LOQ of this method were 1.19 × 10−7 mol/L (0.265 ppb) and 2.63 × 10−7 mol/L (0.586 ppb), respectively, using SERS signal at 631 cm−1, and 2.95 × 10−7 mol/L (0.657 ppb) and 3.86 × 10−7 mol/L (0.860 ppb) using SERS signal at 1109 cm−1, respectively. Furthermore, the developed SERS method was successfully applied in determining acetamiprid on the surface of apple and spinach. This method offers an exciting opportunity for rapid detection of acetamiprid and other organic pesticides considering its advantages of simple preparation process, good specificity and sensitivity, and short detection time (within 1 h).

scholarly journals Mobility of charge carriers in self-assembled monolayers

2019 ◽  
Vol 10 ◽  
pp. 2449-2458
Author(s):  
Zhihua Fu ◽  
Tatjana Ladnorg ◽  
Hartmut Gliemann ◽  
Alexander Welle ◽  
Asif Bashir ◽  
...  
Keyword(s):  
Charge Transport ◽  
Charge Carrier Mobility ◽  
Charge Carriers ◽  
Self Assembled Monolayers ◽  
Force Microscopy ◽  
Atomic Force ◽  
Mobility Of Charge Carriers ◽  
Assembled Monolayers ◽  
Self Assembled

We present a new approach to study charge transport within 2D layers of organic semi-conductors (OSCs) using atomic force microscopy (AFM)-based lithography applied to self-assembled monolayers (SAMs), fabricated from appropriate organothiols. The extent of lateral charge transport was investigated by insulating pre-defined patches within OSC-based SAMs with regions of insulating SAM made from large band gap alkanethiolates. The new method is demonstrated using a phenyl-linked anthracenethiolate (PAT), 4-(anthracene-2-ylethynyl)benzyl thiolate. I–V characteristics of differently shaped PAT-islands were measured using the AFM tip as a top electrode. We were able to determine a relationship between island size and electrical conductivity, and from this dependence, we could obtain information on the lateral charge transport and charge carrier mobility within the thin OSC layers. Our study demonstrates that AFM nanografting of appropriately functionalized OSC molecules provides a suitable method to determine intrinsic mobilities of charge carriers in OSC thin films. In particular, this method is rather insensitive with regard to influence of grain boundaries and other defects, which hamper the application of conventional methods for the determination of mobilities in macroscopic samples.

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