Kim, Jongchan; Hou, Shaocong; Zhao, Haonan; Forrest, Stephen R. published the article 《Nanoscale Mapping of Morphology of Organic Thin Films》. Keywords: organic thin film morphol nanoscale mapping depth resolution; luminescent dye sensor mol transition dipole moment orientation; Fourier plane imaging microscopy; dipole orientation; microscopy; morphology; nanoscale; organic; van der Waals solid.They researched the compound: Bis[2-(1-isoquinolinyl-N)phenyl-C](2,4-pentanedionato-O2,O4)iridium(III)( cas:435294-03-4 ).Name: Bis[2-(1-isoquinolinyl-N)phenyl-C](2,4-pentanedionato-O2,O4)iridium(III). Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:435294-03-4) here.
We determine precise nanoscale information about the morphologies of several organic thin film structures using Fourier plane imaging microscopy (FIM). We used FIM microscopy to detect the orientation of mol. transition dipole moments from an extremely low d. of luminescent dye mols., which we call “”morphol. sensors””. The orientation of the sensor mols. is driven by the local film structure and thus can be used to determine details of the host morphol. without influencing it. We use sym. planar phosphorescent dye mols. as the sensors that are deposited into the bulk of organic film hosts during the growth. We demonstrate morphol. mapping with a depth resolution to a few Ångstroms that is limited by the ability to determine thickness during deposition, along with an in-plane resolution limited by optical diffraction. Furthermore, we monitor morphol. changes arising from thermal annealing of metastable organic films that are commonly employed in photonic devices.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica