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

UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

9.1K
Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent of conjugation in...
9.1K
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

3.5K
In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
3.5K

You might also read

Related Articles

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

Sort by
Same author

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Tuning Mixed Conduction between Ionic and Electronic Transport in Blended OMIECs via Phase Separation and Selective Dissolution.

ACS applied materials & interfaces·2026
Same author

Side Chain Elimination Enables Low-Cost Fused-Ring Acceptors and Reveals a Compact Tetrameric Structure for High-Photocurrent Organic Solar Cells.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

High-performance PVDF/borophene-based TENG for energy harvesting and self-sustaining health monitoring in manual treadmill systems.

Nanoscale·2026
Same author

Resonant X-Ray Diffraction of Conjugated Polymers at the Selenium K-Edge.

Macromolecular rapid communications·2026
Same author

Donor-Acceptor Conjugated Polyelectrolytes for Organic Electrochemical Transistors: Interplay between Main-Chain Charge Carriers and Side-Chain Ions.

ACS applied materials & interfaces·2026

Related Experiment Video

Updated: Apr 1, 2026

Author Spotlight: Advances in Nanoscale Infrared Spectroscopy to Explore Multiphase Polymeric Systems
06:54

Author Spotlight: Advances in Nanoscale Infrared Spectroscopy to Explore Multiphase Polymeric Systems

Published on: June 23, 2023

1.4K

Automated Identification of Thermal Transitions in Conjugated Material Thin Films Using In Situ Optical Spectroscopy.

Doan Vu1,2, Martyn Jevric3, Alireza Samadani2

  • 1Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, North Carolina, USA.

Small Methods
|March 31, 2026
PubMed
Summary

Researchers developed a new method using UV-vis spectroscopy and automated analysis to easily identify multiple thermal transitions in organic semiconductor thin films, aiding electronic device development.

Keywords:
ATLASUV–vis spectroscopyautomated analysisconjugated materialsthermal transitionsthin films

More Related Videos

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
09:32

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Published on: January 26, 2016

8.7K
Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
10:35

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

9.3K

Related Experiment Videos

Last Updated: Apr 1, 2026

Author Spotlight: Advances in Nanoscale Infrared Spectroscopy to Explore Multiphase Polymeric Systems
06:54

Author Spotlight: Advances in Nanoscale Infrared Spectroscopy to Explore Multiphase Polymeric Systems

Published on: June 23, 2023

1.4K
Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
09:32

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Published on: January 26, 2016

8.7K
Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
10:35

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

9.3K

Area of Science:

  • Materials Science
  • Physical Chemistry
  • Organic Electronics

Background:

  • Thermal transitions in organic semiconductors significantly impact device morphology and thermomechanical properties.
  • Accurate characterization of these transitions is crucial for optimizing organic electronic devices.
  • Existing methods for thermal analysis can be complex or limited in scope.

Purpose of the Study:

  • To introduce a facile and high-throughput method for identifying multiple thermal transitions in organic semiconductor thin films.
  • To demonstrate the utility of in situ UV-vis spectroscopy combined with automated data analysis for thermal characterization.
  • To validate the new method against established thermal analysis techniques.

Main Methods:

  • Utilized in situ UV-vis spectroscopy to monitor spectral changes of organic semiconductor thin films across a temperature range.
  • Employed automated data analysis, including linear segment detection of the normalized deviation metric (NDM) and piecewise linear regression, to identify thermal transitions.
  • Compared results with conventional thermal measurement methods like differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).

Main Results:

  • Successfully identified multiple thermal transitions, including liquid crystal, glass, and melting transitions, in various organic semiconductors.
  • The Automated Thermal transition identification using Linear regression analysis of the Absorbance Spectra (ATLAS) method showed good agreement with established thermal characterization techniques.
  • Demonstrated the method's effectiveness on five conjugated polymers and one small molecule semiconductor with diverse thermal behaviors.

Conclusions:

  • The developed ATLAS method provides an effective, simple, and high-throughput screening tool for identifying multiple thermal transitions in thin films.
  • This approach facilitates a deeper understanding of structure-morphology-function relationships in organic electronics.
  • The integration of in situ UV-vis spectroscopy and automated analysis offers a powerful new avenue for materials characterization in organic electronics.