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DOI | 10.1126/science.aat3803 |
Redefining near-unity luminescence in quantum dots with photothermal threshold quantum yield | |
Hanifi, David A.1; Bronstein, Noah D.2; Koscher, Brent A.2,3,4; Nett, Zach2; Swabeck, Joseph K.2,3,4; Takano, Kaori5; Schwartzberg, Adam M.6; Maserati, Lorenzo6,11; Vandewal, Koen7,8; van de Burgt, Yoeri9; Salleo, Alberto1; Alivisatos, A. Paul2,3,4,10 | |
2019-03-15 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6432页码:1199-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Japan; Belgium; Netherlands; Italy |
英文摘要 | A variety of optical applications rely on the absorption and reemission of light. The quantum yield of this process often plays an essential role. When the quantum yield deviates from unity by significantly less than 1%, applications such as luminescent concentrators and optical refrigerators become possible. To evaluate such high performance, we develop a measurement technique for luminescence efficiency with sufficient accuracy below one part per thousand. Photothermal threshold quantum yield is based on the quantization of light to minimize overall measurement uncertainty. This technique is used to guide a procedure capable of making ensembles of near-unity emitting cadmium selenide/cadmium sulfide (CdSe/CdS) core-shell quantum dots. We obtain a photothermal threshold quantum yield luminescence efficiency of 99.6 +/- 0.2%, indicating nearly complete suppression of nonradiative decay channels. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461329000044 |
WOS关键词 | SOLAR CONCENTRATORS ; NANOCRYSTALS ; EMISSION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200975 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA; 2.Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA; 3.Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA; 4.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA; 5.JXTG Nippon Oil & Energy Corp, Mat R&D Grp, HPM Res & Dev Dept, High Performance Mat Co,Naka Ku, 8 Chidori Cho, Yokohama, Kanagawa 2310815, Japan; 6.Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA; 7.Hasselt Univ, IMO IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium; 8.Hasselt Univ, Inst Mat Res, Wetenschapspk 1, B-3590 Diepenbeek, Belgium; 9.Eindhoven Univ Technol, Inst Complex Mol Syst, Microsyst, NL-5612 AJ Eindhoven, Netherlands; 10.Kavli Energy NanoSci Inst, Berkeley, CA 94720 USA; 11.Ist Italiano Tecnol, Ctr Nano Sci & Technol PoliMi, Via Giovanni Pascoli 70-3, I-20133 Milan, Italy |
推荐引用方式 GB/T 7714 | Hanifi, David A.,Bronstein, Noah D.,Koscher, Brent A.,et al. Redefining near-unity luminescence in quantum dots with photothermal threshold quantum yield[J]. SCIENCE,2019,363(6432):1199-+. |
APA | Hanifi, David A..,Bronstein, Noah D..,Koscher, Brent A..,Nett, Zach.,Swabeck, Joseph K..,...&Alivisatos, A. Paul.(2019).Redefining near-unity luminescence in quantum dots with photothermal threshold quantum yield.SCIENCE,363(6432),1199-+. |
MLA | Hanifi, David A.,et al."Redefining near-unity luminescence in quantum dots with photothermal threshold quantum yield".SCIENCE 363.6432(2019):1199-+. |
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