We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Interparticle Charge‐Transport‐Enhanced Electrochemiluminescence of Quantum‐Dot Aerogels.
- Authors
Gao, Xuwen; Jiang, Guocan; Gao, Cunyuan; Prudnikau, Anatol; Hübner, René; Zhan, Jinhua; Zou, Guizheng; Eychmüller, Alexander; Cai, Bin
- Abstract
Electrochemiluminescence (ECL) represents a widely explored technique to generate light, in which the emission intensity relies critically on the charge‐transfer reactions between electrogenerated radicals. Two types of charge‐transfer mechanisms have been postulated for ECL generation, but the manipulation and effective probing of these routes remain a fundamental challenge. Here, we demonstrate the design of quantum dot (QD) aerogels as novel ECL luminophores via a versatile water‐induced gelation strategy. The strong electronic coupling between adjacent QDs enables efficient charge transport within the aerogel network, leading to the generation of highly efficient ECL based on the selectively improved interparticle charge‐transfer route. This mechanism is further verified by designing CdSe‐CdTe mixed QD aerogels, where the two mechanistic routes are clearly decoupled for ECL generation. We anticipate our work will advance the fundamental understanding of ECL and prove useful for designing next‐generation QD‐based devices.
- Subjects
ELECTROCHEMILUMINESCENCE; AEROGELS; GELATION; LUMINOPHORES; QUANTUM dots; SOL-gel processes
- Publication
Angewandte Chemie, 2023, Vol 135, Issue 2, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202214487