Molecular-like Photochemistry from Semiconductor Nanocrystals
January 22, 2016 | North Carolina State UniversityEstimated reading time: 1 minute
Castellano's team used cadmium selenide (CdSe) nanocrystals capped with oleic acid, prepared by Prof. Mikhail Zamkov and his graduate student Natalia Razgoniaeva at Bowling Green State University. Some of the oleic acid is then replaced by the molecular triplet acceptor 9-anthacenecarboxylic acid (ACA). When the CdSe nanocrystal bearing ACA is struck with a green laser pulse, the exciton produced in the CdSe is transferred to the ACA, forming a molecular triplet exciton with a millisecond lifetime. This represents a lifetime extension of six orders of magnitude, enabling subsequent chemical reactivity.
"The other benefit is that by translating the exciton away from the nanoparticle surface, instead of involving the nanoparticle itself in the desired chemical reactions, you won't degrade the nanoparticle," says Castellano. "It can keep absorbing light and transferring the energy into the bulk solution."
Page 2 of 2Suggested Items
Japan’s OHISAMA Project Aims to Beam Solar Power from Space This Year
07/14/2025 | I-Connect007 Editorial TeamJapan could be on the cusp of making history with its OHISAMA project in its quest to become the first country to transmit solar power from space to Earth, The Volt reported.
Progress Towards Potassium-ion Batteries
07/07/2025 | ACN NewswirePotassium-ion batteries could have a higher energy density than sodium-ion batteries. This is important for large-scale energy storage such as for renewable energy.
UHDI Fundamentals: UHDI Drives Unique IoT Innovation—Smart Homes
06/03/2025 | Anaya Vardya, American Standard CircuitsThe combination of UHDI's high-bandwidth capabilities and IoT's real-time data processing can lead to more efficient, immersive, and smarter IoT systems. This convergence of two revolutionary technologies is enabling quantum advancements in some very “unconventional” applications.
Ather Energy, Infineon Technologies Partner to Accelerate India’s Electric Two-wheeler Revolution
05/30/2025 | InfineonAther Energy, a leading electric two-wheeler manufacturer in India and Infineon Technologies Asia Pacific Pte Ltd, a global leader in semiconductor solutions, signed a Memorandum of Understanding (MoU) in Seoul, South Korea, to jointly drive innovation in the electric vehicle (EV) industry in India.
Huawei Single SitePower Solution Creates Four Synergies to Accelerate Site Intelligence
05/27/2025 | PRNewswireDuring the 9th Global ICT Energy Efficiency Summit in Dubai, Huawei showcased its next-generation digital and intelligent site power facility solution Single SitePower, which is set to drive the intelligent transformation of ICT energy infrastructure.
Copyright © I-Connect007 | IPC Publishing Group Inc. All rights reserved.
Log in