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

Dimensional Analysis03:40

Dimensional Analysis

65.1K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
65.1K
Dimensional Analysis01:27

Dimensional Analysis

683
Dimensional analysis is a valuable technique in fluid mechanics for simplifying complex problems by reducing them into dimensionless groups. These groups capture the essential relationships between the variables involved, allowing researchers and engineers to analyze fluid flow without dealing with each variable individually. This approach reduces the number of independent variables, allowing for easier analysis and better understanding of physical phenomena.
In fluid mechanics, dimensional...
683
Dimensional Analysis01:23

Dimensional Analysis

2.2K
Dimensional analysis is a powerful tool that is used in physics and engineering to understand and predict the behavior of physical systems. The basic idea behind dimensional analysis is to express physical quantities in terms of fundamental dimensions such as the mass, length, and time. Derived dimensions like the velocity, acceleration, and force are derived from the combinations of these fundamental dimensions.
Dimensional analysis allows us to analyze and compare physical quantities on a...
2.2K
Dimensional Analysis02:19

Dimensional Analysis

24.5K
The concept of dimension is important because every mathematical equation linking physical quantities must be dimensionally consistent, implying that mathematical equations must meet the following two rules. The first rule is that, in an equation, the expressions on each side of the equal sign must have the same dimensions. This is fairly intuitive since we can only add or subtract quantities of the same type (dimension). The second rule states that, in an equation, the arguments of any of the...
24.5K
Three-Dimensional Force System01:30

Three-Dimensional Force System

2.9K
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
2.9K
Two-Dimensional Force System01:20

Two-Dimensional Force System

1.7K
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
1.7K

You might also read

Related Articles

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

Sort by
Same author

Amplified chiroptic response in a multi-helical penta-perylene structure.

Chemical science·2026
Same author

Lysing with Light: Trackable On Demand Molecular Delivery.

Journal of the American Chemical Society·2026
Same author

Excitonic spin torque in a magnetic semiconductor.

Nature materials·2026
Same author

Author Correction: Hidden states and dynamics of fractional fillings in twisted MoTe<sub>2</sub> bilayers.

Nature·2026
Same author

Double Thionation of 4-Dimethylaminophthalimide Leads to the Development of a Highly Effective Photosensitizer.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Observation of coherent ferron emission and propagation.

Nature materials·2026
Same journal

A Ni-Mediated Cross-Coupling Approach to Deuterated <sup>18</sup>F- Fluoromethylated (Hetero)arenes.

Journal of the American Chemical Society·2026
Same journal

Efficient Light-Driven CO<sub>2</sub> Capture and Reversible Release Enabled by Metastable Photoacid-Decorated Metal-Organic Frameworks.

Journal of the American Chemical Society·2026
Same journal

In Situ Raman Spectroscopy Reveals the Dynamic Evolution and Ethanol Dependence of SEI Structure in Li-Mediated N<sub>2</sub> Reduction Reaction.

Journal of the American Chemical Society·2026
Same journal

Solvent Esterification and Stoichiometric Control in Ambient-Grown FAPbI<sub>3</sub> Single-Crystal Solar Cells.

Journal of the American Chemical Society·2026
Same journal

Unlocking Azulene Functionalization via Strain-Induced Azulyne Intermediates.

Journal of the American Chemical Society·2026
Same journal

An Oxazine-Locked Covalent Organic Framework by a Tandem Pinner/Schiff Base Reaction for Hydrogen Peroxide Photosynthesis.

Journal of the American Chemical Society·2026
See all related articles

Related Experiment Video

Updated: Feb 10, 2026

Preparation and Characterization of C60/Graphene Hybrid Nanostructures
08:40

Preparation and Characterization of C60/Graphene Hybrid Nanostructures

Published on: May 15, 2018

10.0K

Three-Dimensional Graphene Nanostructures.

Samuel R Peurifoy1, Edison Castro2, Fang Liu1

  • 1Department of Chemistry , Columbia University , New York , New York 10027 , United States.

Journal of the American Chemical Society
|May 26, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed novel 3D graphene nanostructures for optoelectronics. These unique materials enhance light absorption and reduce resistance, achieving high efficiency in perovskite solar cells.

More Related Videos

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
14:52

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Published on: September 23, 2018

9.4K
Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.8K

Related Experiment Videos

Last Updated: Feb 10, 2026

Preparation and Characterization of C60/Graphene Hybrid Nanostructures
08:40

Preparation and Characterization of C60/Graphene Hybrid Nanostructures

Published on: May 15, 2018

10.0K
Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
14:52

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Published on: September 23, 2018

9.4K
Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.8K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Optoelectronics

Background:

  • Graphene nanostructures offer unique electronic and optical properties.
  • Developing high-performance optoelectronic materials is crucial for advanced devices.
  • Three-dimensional (3D) nanomaterials present new design possibilities.

Purpose of the Study:

  • To introduce a new strategy for designing high-performance 3D graphene nanostructures.
  • To synthesize and characterize novel 3D graphene propeller nanostructures.
  • To evaluate the performance of these nanostructures in optoelectronic devices.

Main Methods:

  • Synthesis of 3D graphene nanostructures via coupling and fusion of a triptycene hub and helical graphene nanoribbons.
  • Characterization of the nanostructures' properties, including absorption and contact resistance.
  • Integration of the nanostructures as electron-extracting layers in perovskite solar cells.

Main Results:

  • Successful synthesis of a three-bladed propeller 3D graphene nanostructure.
  • Demonstrated enhanced light absorption and decreased contact resistance in larger nanostructures.
  • Achieved a power conversion efficiency (PCE) of 18.0% in perovskite solar cells using the largest nanostructures.

Conclusions:

  • The developed 3D graphene nanostructures exhibit unique properties superior to their constituent parts.
  • These nanostructures represent a promising new class of materials for high-performance optoelectronic applications.
  • The achieved PCE highlights the potential of 3D graphene nanostructures as efficient electron-extracting layers in solar cells.