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

Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

1.7K
Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
1.7K
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

1.2K
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
1.2K
Biasing of P-N Junction01:16

Biasing of P-N Junction

2.7K
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
2.7K
Modified-Release Drug Delivery Systems: Stimuli-Activated01:30

Modified-Release Drug Delivery Systems: Stimuli-Activated

144
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also...
144
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

2.8K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
2.8K

You might also read

Related Articles

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

Sort by
Same author

Regulatory crosstalk between KLF5, miR-29a and Fbw7/CDC4 cooperatively promotes atherosclerotic development.

Biochimica et biophysica acta. Molecular basis of disease·2017
Same author

Near-Infrared Light Triggered Upconversion Optogenetic Nanosystem for Cancer Therapy.

ACS nano·2017
Same author

Non-contact method to freely control the radiation patterns of antenna with multi-folded transformation optics.

Scientific reports·2017
Same author

Cost Effectiveness of Imatinib, Dasatinib, and Nilotinib as First-Line Treatment for Chronic-Phase Chronic Myeloid Leukemia in China.

Clinical drug investigation·2017
Same author

Improving Performance of Breast Cancer Risk Prediction by Incorporating Optical Density Image Feature Analysis: An Assessment.

Academic radiology·2017
Same author

Preliminary study on ultrasound-guided prostate biopsy specimen scores.

Experimental and therapeutic medicine·2017

Related Experiment Video

Updated: Apr 18, 2026

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
09:45

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers

Published on: October 28, 2015

9.0K

N-annulated perylene-based push-pull-type sensitizers.

Qingbiao Qi1, Xingzhu Wang, Li Fan

  • 1Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore , 117543.

Organic Letters
|January 28, 2015
PubMed
Summary
This summary is machine-generated.

New alkoxy-wrapped N-annulated perylene (NP) building blocks create high-performance metal-free sensitizers for cobalt-based dye-sensitized solar cells, achieving up to 6.95% efficiency.

More Related Videos

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization
06:26

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization

Published on: January 24, 2025

2.1K
Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
10:16

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties

Published on: January 8, 2016

14.4K

Related Experiment Videos

Last Updated: Apr 18, 2026

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
09:45

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers

Published on: October 28, 2015

9.0K
Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization
06:26

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization

Published on: January 24, 2025

2.1K
Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
10:16

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties

Published on: January 8, 2016

14.4K

Area of Science:

  • Materials Science
  • Photovoltaics
  • Organic Chemistry

Background:

  • Metal-free organic dyes are crucial for sustainable energy solutions.
  • Cobalt(II)/(III) complexes offer promising redox mediators in dye-sensitized solar cells (DSSCs).
  • Developing efficient and stable organic sensitizers remains a key challenge in photovoltaic research.

Purpose of the Study:

  • To synthesize and characterize novel N-annulated perylene (NP) derivatives as π-linkers.
  • To design and evaluate three new push-pull type metal-free sensitizers (QB1-QB3) incorporating the NP unit.
  • To investigate the performance of these sensitizers in cobalt-based DSSCs.

Main Methods:

  • Synthesis of alkoxy-wrapped N-annulated perylene (NP) as a rigid, coplanar π-linker.
  • Structural modification of acceptor units to tune optical and electrochemical properties of QB1-QB3 dyes.
  • Fabrication and photovoltaic performance testing of DSSCs using the synthesized sensitizers and Co(II)/(III) redox electrolyte.

Main Results:

  • Successful synthesis of NP-based π-linkers and QB1-QB3 sensitizers with tunable properties.
  • Demonstrated application of QB1-QB3 dyes in cobalt-based DSSCs.
  • Achieved a maximum power conversion efficiency (PCE) of 6.95% for the DSSCs, highlighting the effectiveness of the NP building block.

Conclusions:

  • Alkoxy-wrapped N-annulated perylene (NP) is a viable and effective building block for high-performance organic sensitizers.
  • The NP unit enables fine-tuning of dye properties for enhanced photovoltaic applications.
  • These findings pave the way for designing next-generation metal-free sensitizers for efficient solar energy conversion.