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

Photosystem I01:27

Photosystem I

62.8K
Although structurally similar to photosystem II (PSII), photosystem I (PSI) is has a different electron supplier and electron acceptor.
Both these photosystems work in concert. An excited electron from PSII is relayed to PSI via an electron transport chain in the thylakoid membrane of the chloroplast, which is comprised of the carrier molecule plastoquinone, the dual-protein cytochrome complex, and plastocyanin. As electrons move between PSII and PSI, they lose energy and must be re-energized...
62.8K
The Z-Scheme of Electron Transport in Photosynthesis01:34

The Z-Scheme of Electron Transport in Photosynthesis

10.2K
The light reactions of photosynthesis assume a linear flow of electrons from water to NADP+. During this process, light energy drives the splitting of water molecules to produce oxygen. However, oxidation of water molecules is a thermodynamically unfavorable reaction and requires a strong oxidizing agent. This is accomplished by the first product of light reactions: oxidized P680 (or P680+), the most powerful oxidizing agent known in biology. The oxidized P680 that acquires an electron from the...
10.2K
Photosystem II01:22

Photosystem II

71.0K
The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across  two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
71.0K
Oxygenic Photosynthesis01:26

Oxygenic Photosynthesis

31
Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...
31
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

2.4K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.4K
Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

1.9K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
1.9K

You might also read

Related Articles

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

Sort by
Same author

Probiotic goat milk yogurt with plant-based prebiotics: Probiotic survival during in vitro simulated gastrointestinal transit.

Journal of dairy science·2026
Same author

Programmable ferroelectric rectifier for reliable and efficient neuromorphic crossbar array.

Nature communications·2026
Same author

A nanoporous capacitive electrochemical ratchet for continuous ion separations.

Nature materials·2026
Same author

Enhancing Stability in Next-Generation Photoelectrodes Such as Organic Semiconductor and Halide Perovskite-Based Photoelectrodes for Various Applications: Recent Advanced Passivation and Encapsulation Methods.

Exploration (Beijing, China)·2026
Same author

Class switched bovine ultralong CDR H3 amplicons versus canonical in immune and non-immune tissues.

Immunogenetics·2026
Same author

Comprehensive Characterization of Oligolactide Architecture by Multidimensional Chromatography and Liquid Chromatography-Mass Spectrometry.

ACS omega·2026

Related Experiment Video

Updated: Jul 15, 2025

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

9.6K

Organometal Halide Perovskite-Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water

Hojoong Choi1, Sehun Seo2,3,4, Chang Jae Yoon5

  • 1School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|September 27, 2023
PubMed
Summary

Researchers developed a scalable modular design for organometal halide perovskite (OHP) photoelectrochemical systems. This approach overcomes challenges in scaling up OHP photoelectrodes for efficient solar water splitting applications.

Keywords:
moduleorganometal halide perovskitephotoelectrochemical water splittingscalableunassisted solar water splitting

More Related Videos

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.2K
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

16.7K

Related Experiment Videos

Last Updated: Jul 15, 2025

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

9.6K
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.2K
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

16.7K

Area of Science:

  • Materials Science
  • Renewable Energy
  • Electrochemistry

Background:

  • Organometal halide perovskites (OHPs) show promise for photoelectrochemical (PEC) applications.
  • Scaling up OHP-based PEC systems for solar water splitting faces challenges like resistive losses and defects.

Purpose of the Study:

  • To propose a scalable design for OHP-based PEC systems.
  • To address the obstacles hindering the practical application of OHP photoelectrodes in large-scale systems.

Main Methods:

  • Modularization of optimized OHP photoelectrodes.
  • Construction of a 16-photoelectrode OHP PEC module.
  • Testing PEC performance under natural sunlight without external bias.

Main Results:

  • Achieved a high solar-to-hydrogen conversion efficiency of 10.4% in optimized OHP photoelectrodes.
  • The modular OHP PEC system demonstrated optimal performance, avoiding scaling-up obstacles.
  • Generated a photocurrent of 11.52 mA from the 16-electrode module under natural sunlight without external bias.

Conclusions:

  • The modular design successfully enables unassisted solar water splitting.
  • This approach provides insights for designing scalable OHP-based PEC systems for commercialization.