Related Experiment Video
Updated: May 15, 2026

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods
Published on: February 11, 2016
Oxygen vacancies promoting photoelectrochemical performance of In(2)O(3) nanocubes
Jiayong Gan1, Xihong Lu, Jingheng Wu
1KLGHEI of Environment and Energy Chemistry, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China.
Abstract:
This work reports a facile method for preparing the new photoactive In(2)O(3) films as well as their implementation in photoelectrochemical (PEC) application. We firstly investigated the relationship between oxygen vacancies (V(O)) and PEC performance and revealed a rule between them. We found that the optimized In(2)O(3-n) sample yielded a photocurrent density up to 3.83 mA/cm(2) in 1 M Na(2)SO(4) solution under the solar illumination. It also gave efficiency as high as 75% over 400 nm in the incident-photon-to-current-conversion efficiency (IPCE) spectrum, which is the best value for an In(2)O(3) photoanode reported. Moreover, the PEC performance of these films is enhanced as the V(O) increased and then decreased with further increasing V(O). This two-side effect means V(O) can favor the photoelectron activation, or act as recombination centers to prohibit the generation of photocurrent. Making highly photoactive In(2)O(3) nanostructures in this work will open up new opportunities in various areas.
Related Concept Videos
Oxygenic Photosynthesis
Photosystem II
The pigment molecules are arranged across two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
Photoluminescence: Applications
Photosystem I
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...
Photoelectric Effect
