论文标题
使用纳米质组件在溶液中偶联钙钛矿量子点对
Coupling Perovskite Quantum Dot Pairs in Solution using Nanoplasmonic Assembly
论文作者
论文摘要
钙钛矿量子点（PQD）为有效的太阳能电池，明亮的发光设备和光源提供了一种强大的解决方案方法。量化异质性和理解点之间的耦合对于这些应用至关重要。我们使用双纳米光捕获到大小的单个点，并与量子限制的发射能量转移相关。我们能够在陷阱中组装第二个点，这使我们能够观察点之间的耦合。我们观察到发射波长中的1.1 $ \ pm $ 0.6 meV的系统红移。理论分析表明，观察到的转移与共振能量转移一致，并且由于PQD中的中度到大量子限制，因此异常大。这证明了PQD在量子信息应用中纠缠的承诺。这项工作使未来可以对PQD增长的原位控制以及对小型PQD组件之间的耦合进行研究，并考虑到量子信息应用。
Perovskite quantum dots (PQDs) provide a robust solution-based approach to efficient solar cells, bright light-emitting devices, and quantum sources of light. Quantifying heterogeneity and understanding coupling between dots is critical for these applications. We use double-nanohole optical trapping to size individual dots and correlate to emission energy shifts from quantum confinement. We were able to assemble a second dot in the trap, which allows us to observe the coupling between dots. We observe a systematic red-shift of 1.1 $\pm$ 0.6 meV in the emission wavelength. Theoretical analysis shows that the observed shift is consistent with resonant energy transfer and is unusually large due to moderate-to-large quantum confinement in PQDs. This demonstrates the promise of PQDs for entanglement in quantum information applications. This work enables future in situ control of PQD growth as well as studies of the coupling between small PQD assemblies with quantum information applications in mind.
