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

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

226
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
226
RNA Stability01:53

RNA Stability

35.8K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
35.8K
Nuclear Stability03:18

Nuclear Stability

23.4K
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together...
23.4K
Enthalpy of Solution02:39

Enthalpy of Solution

31.1K
There are two criteria that favor, but do not guarantee, the spontaneous formation of a solution:
31.1K
Solution Formation02:16

Solution Formation

38.1K
There is no one solvent that can dissolve every type of solute. Some substances that readily dissolve in a certain solvent might be insoluble in a different solvent. A simple way to predict which substances dissolve in which solvent is the phrase "like dissolves like". This means that polar substances, such as salt and sugar, dissolve in a polar substance like water. In contrast, non-polar substances are more soluble in non-polar solvents such as carbon tetrachloride.
This selective...
38.1K
Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

18.1K
Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
18.1K

You might also read

Related Articles

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

Sort by
Same author

Sustaining Methanol-Oxidation and Hydrogen Evolution at Low Voltage by Applying Periodic Polarity Reversal on a Symmetric Pt-Based Electrode Pair.

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

Promoting Electro-Hydrogenation of Hydrophobic Benzofuran over Pd-Based Catalyst in Aqueous Media via Electrolyte Engineering.

Angewandte Chemie (International ed. in English)·2025
Same author

Precursor engineering towards orange- and red-emissive carbon dots for LEDs with tunable emission colors.

Nanoscale·2024
Same author

Organic-Hydrochloride-Modified ZnO Electron Transport Layer for Efficient Defect Passivation and Stress Release in Rigid and Flexible all Inorganic Perovskite Solar Cells.

Small (Weinheim an der Bergstrasse, Germany)·2024
Same author

Crystalline architectures of C<sub>84</sub> with tunable morphology and linearly polarized red emission.

Nanoscale·2023
Same author

Unraveling a bifunctional mechanism for methanol-to-formate electro-oxidation on nickel-based hydroxides.

Nature communications·2023

Related Experiment Video

Updated: Feb 11, 2026

Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

8.7K

A Simple Perylene Derivative as a Solution-Processable Cathode Interlayer for Perovskite Solar Cells with Enhanced

Chen Wang, Ping Liu, Huanxin Ju1

  • 1National Synchrotron Radiation Laboratory , University of Science and Technology of China , Hefei , Anhui 230029 , China.

ACS Applied Materials & Interfaces
|April 24, 2018
PubMed
Summary

A novel tetramethylammonium salt of perylene-3,4,9,10-tetracarboxylic acid (TMA-PTC) enhances perovskite solar cell efficiency by 30%. This cathode interlayer also improves device stability and reduces perovskite degradation.

Keywords:
cathode interlayerdegradationinterface engineeringinterfacial recombinationp−i−n perovskite solar cell

More Related Videos

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

17.2K
Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

10.1K

Related Experiment Videos

Last Updated: Feb 11, 2026

Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

8.7K
Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

17.2K
Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

10.1K

Area of Science:

  • Materials Science
  • Renewable Energy
  • Photovoltaics

Background:

  • Planar p-i-n perovskite solar cells (PeSCs) are promising for low-cost energy generation.
  • Interface engineering is crucial for optimizing PeSC performance and stability.
  • Efficient charge extraction and blocking at the cathode interface are key challenges.

Purpose of the Study:

  • To develop and evaluate a novel alcohol-soluble perylene derivative as a cathode interlayer (CIL) for planar p-i-n PeSCs.
  • To investigate the impact of the CIL on the PC$_{61}$BM/Ag interface.
  • To assess the effects of the CIL on power conversion efficiency (PCE) and device stability.

Main Methods:

  • Synthesis of tetramethylammonium salt of perylene-3,4,9,10-tetracarboxylic acid (TMA-PTC).
  • Application of TMA-PTC as a CIL in planar p-i-n PeSCs.
  • Characterization of the PC$_{61}$BM/Ag interface with and without TMA-PTC.
  • Performance evaluation (PCE) and stability testing of the fabricated PeSCs.

Main Results:

  • TMA-PTC was successfully prepared as an alcohol-soluble perylene derivative.
  • PeSCs incorporating TMA-PTC as a CIL exhibited a ca. 30% increase in PCE compared to control devices.
  • The TMA-PTC interlayer improved electron transport and hole blocking at the PC$_{61}$BM/Ag interface.
  • TMA-PTC-based devices demonstrated significantly enhanced stability, likely due to suppressed perovskite corrosion on the Ag cathode.

Conclusions:

  • TMA-PTC serves as an effective multifunctional CIL for planar p-i-n PeSCs.
  • The CIL enhances device performance through improved interfacial properties.
  • TMA-PTC contributes to superior device stability, addressing a critical challenge in PeSC technology.
  • Solution-processable TMA-PTC offers a promising pathway for fabricating efficient, stable, and low-cost PeSCs.