Photobleaching of quantum dots by non-resonant light
Core-shell quantum dots suffer from photobleaching by light at wavelengths longer than their emission wavelengths. That is, QD photobleaching can be triggered by photons with low energies that are insufficient to pump electrons into the conduction band. The most probable reason is that electrons are...
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Published in | PCCP. Physical chemistry chemical physics (Print) Vol. 15; no. 9; pp. 3130 - 3132 |
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Main Authors | , , , , |
Format | Conference Proceeding Journal Article |
Language | English |
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Cambridge
Royal Society of Chemistry
07.03.2013
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Abstract | Core-shell quantum dots suffer from photobleaching by light at wavelengths longer than their emission wavelengths. That is, QD photobleaching can be triggered by photons with low energies that are insufficient to pump electrons into the conduction band. The most probable reason is that electrons are pumped into a surface state and then nonradiatively decayed as in conventional photobleaching. |
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AbstractList | Core-shell quantum dots suffer from photobleaching by light at wavelengths longer than their emission wavelengths. That is, QD photobleaching can be triggered by photons with low energies that are insufficient to pump electrons into the conduction band. The most probable reason is that electrons are pumped into a surface state and then nonradiatively decayed as in conventional photobleaching. |
Author | HONGWEI GAI YANG TU XINGBO SHI XIAOJUN LIU YEUNG, Edward S |
Author_xml | – sequence: 1 surname: XINGBO SHI fullname: XINGBO SHI organization: College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China – sequence: 2 surname: YANG TU fullname: YANG TU organization: School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China – sequence: 3 surname: XIAOJUN LIU fullname: XIAOJUN LIU organization: School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China – sequence: 4 givenname: Edward S surname: YEUNG fullname: YEUNG, Edward S organization: School of Biology, Hunan University, Changsha, Hunan 410082, China – sequence: 5 surname: HONGWEI GAI fullname: HONGWEI GAI organization: School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China |
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Keywords | Conduction Quantum dot Energy Photon Wavelength Photobleaching |
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Snippet | Core-shell quantum dots suffer from photobleaching by light at wavelengths longer than their emission wavelengths. That is, QD photobleaching can be triggered... |
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SubjectTerms | Chemistry Conduction band Decay Emission Exact sciences and technology General and physical chemistry Light Models, Chemical Photobleaching Photochemistry Photons Physical chemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Pumps Quantum Dots Wavelengths |
Title | Photobleaching of quantum dots by non-resonant light |
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