Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Molecular Orbital Theory II03:51

Molecular Orbital Theory II

27.3K
Molecular Orbital Energy Diagrams
27.3K
Molecular Orbital Theory I02:35

Molecular Orbital Theory I

47.5K
Overview of Molecular Orbital Theory
47.5K
π Molecular Orbitals of 1,3-Butadiene01:24

π Molecular Orbitals of 1,3-Butadiene

11.8K
Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
11.8K
Structure of Benzene: Molecular Orbital Model01:18

Structure of Benzene: Molecular Orbital Model

12.5K
According to the molecular orbital (MO) model, benzene has a planar structure with a regular hexagon of six sp2 hybridized carbons. As shown in Figure 1, each carbon is bonded to three other atoms with C–C–C and H–C–C bond angles of 120°. The C–H bond length is 109 pm, and the C–C bond length is 139 pm which is midway between the single bond length of sp3 hybridized carbons (154 pm) and sp2 hybridized carbons (133 pm).
12.5K
π Molecular Orbitals of the Allyl Radical01:27

π Molecular Orbitals of the Allyl Radical

4.6K
Allyl radicals are three-carbon conjugated systems. They are readily formed as intermediates in halogenation reactions of alkenes involving the addition of halogen to the allylic carbon instead of the double bond. As seen in allyl cations and anions, each of the three sp2-hybridized carbon atoms in allyl radicals has an unhybridized p orbital. These orbitals combine to give three π molecular orbitals.
The allyl systems have identical molecular orbitals but differ in the number of π electrons....
4.6K
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

67.3K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
67.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Mechanisms by Which Plant Extracts Ameliorate Bovine Mastitis Through the Regulation of Mitochondrial Function: A Review.

Cells·2026
Same author

Highly robust underwater wireless optical communication system with optical background rejection and adaptive algorithm under strong artificial illumination.

Optics express·2026
Same author

Single-Molecule Memristor Realizing Synaptic Plasticity for Neuromorphic Applications.

Angewandte Chemie (International ed. in English)·2026
Same author

Diagnostic accuracy of dual-phase cone-beam computed tomography for celiac arteriography in patients with hepatocellular carcinoma: Comparison with preoperative dynamic contrast-enhanced magnetic resonance imaging.

Journal of cancer research and therapeutics·2026
Same author

Stereoselective Ring-Opening Polymerization of Racemic Dithiolactones Assisted by Non-Classical C─H⋯X Interactions.

Angewandte Chemie (International ed. in English)·2026
Same author

Mechanically Induced Switching Between Orbital- and Fano-Resonance Rectification in a Dual-Anchored Molecular Junction.

Angewandte Chemie (International ed. in English)·2026

Related Experiment Video

Updated: Feb 3, 2026

Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.8K

Molecular Orbital Gating Surface-Enhanced Raman Scattering.

Chenyang Guo1, Xing Chen2, Song-Yuan Ding3

  • 1Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Key Laboratory of Optical Information Science and Technology, Institute of Modern Optics, College of Electronic Information and Optical Engineering , Nankai University , Tianjin 300071 , China.

ACS Nano
|October 19, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel single-molecule optical device, a field-effect Raman scattering (FERS) device. This technology enhances Raman scattering intensity by 40% using gating voltage, enabling highly sensitive molecular analysis.

Keywords:
Raman scatteringlimit of plasmonic enhancementmolecular devicesmolecular electronicsnanogaps

More Related Videos

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging
06:19

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

Published on: June 9, 2023

2.1K
Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

3.5K

Related Experiment Videos

Last Updated: Feb 3, 2026

Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.8K
Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging
06:19

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

Published on: June 9, 2023

2.1K
Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

3.5K

Area of Science:

  • Nanotechnology
  • Molecular Electronics
  • Optical Spectroscopy

Background:

  • The demand for device miniaturization drives the development of single-molecule functional devices.
  • While single-molecule electronic devices are established, single-molecule optical devices remain underdeveloped.
  • Controlling molecular optical responses with external stimuli is a key challenge.

Purpose of the Study:

  • To propose and demonstrate a novel single-molecule optical device.
  • To investigate the field-effect Raman scattering (FERS) phenomenon in single-molecule junctions.
  • To enhance the sensitivity of Raman scattering beyond plasmonic limits.

Main Methods:

  • Fabrication of a field-effect Raman scattering (FERS) device utilizing single molecules.
  • Precise adjustment of electrode gap size at subangstrom accuracy to form single molecular junctions.
  • Application of gating voltage to shift molecular orbitals and modulate Raman scattering intensity.

Main Results:

  • Demonstrated a functional single-molecule FERS device, an optical analog to field-effect transistors.
  • Achieved maximum Raman scattering performance through plasmonic enhancement by optimizing the molecular junction.
  • Showcased a 40% enhancement in Raman scattering intensity by applying a gating voltage to tune molecular orbitals.

Conclusions:

  • The study presents a method to significantly increase Raman scattering sensitivity beyond conventional plasmonic enhancement.
  • The developed FERS device offers a pathway towards highly sensitive, addressable optical devices.
  • This breakthrough paves the way for miniaturized, gate-controlled single-molecule optical sensors and components.