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DOI | 10.1126/science.aav2865 |
Eliminating nonradiative decay in Cu(I) emitters: > 99% quantum efficiency and microsecond lifetime | |
Hamze, Rasha1; Peltier, Jesse L.2; Sylvinson, Daniel1; Jung, Moonchul1; Cardenas, Jose1; Haiges, Ralf1; Soleilhavoup, Michele2; Jazzar, Rodolphe2; Djurovich, Peter I.1; Bertrand, Guy2; Thompson, Mark E.1 | |
2019-02-08 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6427页码:601-606 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Luminescent complexes of heavy metals such as iridium, platinum, and ruthenium play an important role in photocatalysis and energy conversion applications as well as organic light-emitting diodes (OLEDs). Achieving comparable performance from more-earth-abundant copper requires overcoming the weak spin-orbit coupling of the light metal as well as limiting the high reorganization energies typical in copper(I) [Cu(I)] complexes. Here we report that two-coordinate Cu(I) complexes with redox active ligands in coplanar conformation manifest suppressed nonradiative decay, reduced structural reorganization, and sufficient orbital overlap for efficient charge transfer. We achieve photoluminescence efficiencies >99% and microsecond lifetimes, which lead to an efficient blue-emitting OLED. Photophysical analysis and simulations reveal a temperature-dependent interplay between emissive singlet and triplet charge-transfer states and amide-localized triplet states. |
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:000489072200001 |
WOS关键词 | ACTIVATED DELAYED FLUORESCENCE ; LIGHT-EMITTING-DIODES ; SOLAR-ENERGY CONVERSION ; PHOTOPHYSICAL PROPERTIES ; CUPROUS COMPLEXES ; METAL-COMPLEXES ; CU-I ; SINGLET ; LUMINESCENCE ; DESIGN |
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/200710 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Southern Calif, Dept Chem, Los Angeles, CA 90089 USA; 2.Univ Calif San Diego, Dept Chem & Biochem, UCSD CNRS Joint Res Lab UMI 3555, La Jolla, CA 92093 USA |
推荐引用方式 GB/T 7714 | Hamze, Rasha,Peltier, Jesse L.,Sylvinson, Daniel,et al. Eliminating nonradiative decay in Cu(I) emitters: > 99% quantum efficiency and microsecond lifetime[J]. SCIENCE,2019,363(6427):601-606. |
APA | Hamze, Rasha.,Peltier, Jesse L..,Sylvinson, Daniel.,Jung, Moonchul.,Cardenas, Jose.,...&Thompson, Mark E..(2019).Eliminating nonradiative decay in Cu(I) emitters: > 99% quantum efficiency and microsecond lifetime.SCIENCE,363(6427),601-606. |
MLA | Hamze, Rasha,et al."Eliminating nonradiative decay in Cu(I) emitters: > 99% quantum efficiency and microsecond lifetime".SCIENCE 363.6427(2019):601-606. |
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