Da Seul Lee

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Metallic nanoparticles (NPs) exhibit a localized surface plasmon resonance (LSPR) and act as scattering centers and subwavelength antennas, so metallic NPs can be incorporated into perovskite solar cells (PSCs) to effectively improve the light absorption of light harvesting devices. Here, we have embedded Au nanoparticles (NPs) into the hole transport layer(More)
Cathodoluminescent (CL) emission from Tm-doped AlxGa1–xN (AlxGa1–xN:Tm) has been observed with various Al compositions (0 ≤ x ≤ 1). According to CL spectrum from Al0.81Ga0.19N:Tm film 1D2 levelrelated CL emissions were observed to dominate: the strongest was blue at 464 nm and the next was UV at 369 nm, corresponding to the Tm 1D2 → 3F4 and 1D2 → 3H6(More)
Herein we report an extended study of [4 + 2] benzannulation reactions of 2-(hetero)aryl-substituted anilines with alkynes by visible light photocatalysis. The method requires the use of tBuONO as a diazotizing agent and 0.3 mol % of fac-Ir(ppy)3 as a photocatalyst at room temperature. The reaction proceeded in a chemo- and regioselective manner with high(More)
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