Plasmon‐Enhanced Photoelectrochemical Water Splitting for Efficient Renewable Energy Storage
Abstract
Photoelectrochemical (PEC) water splitting is a promising approach for producing hydrogen without greenhouse gas emissions. Despite decades of unceasing efforts, the efficiency of PEC devices based on earth‐abundant semiconductors is still limited by their low light absorption, low charge mobility, high charge‐carrier recombination, and reduced diffusion length. Plasmonics has recently emerged as an effective approach for overcoming these limitations, although a full understanding of the involved physical mechanisms remains elusive. Here, the reported plasmonic effects are outlined, such as resonant energy transfer, scattering, hot electron injection, guided modes, and photonic effects, as well as the less investigated catalytic and thermal effects used in PEC water splitting. In each section, the fundamentals are reviewed and the most representative examples are discussed, illustrating possible future developments for achieving improved efficiency of plasmonic photoelectrodes.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 18, 2019
- Source ID
- 10.1002/adma.201805513
Entities
People
- Alberto Naldoni
- Alexandra Boltasseva
- Aveek Dutta
- Luca Mascaretti
- Radek Zbořil
- Vladimir Shalaev
- Štěpán Kment
Organizations
- Air Force Office of Scientific Research
- Ministry of Education, Youth and Sports
- Palacký University Olomouc
- Purdue University