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8CB Layers at Different Temperature

8CB Layers at Different Temperature. “Formation of Liquid Crystalline Phases from a Langmuir Monolayer” By K.A. Suresh and A. Bhattacharyya Langmuir 1997 , 13 , 1377-1380. Phase Transition of 8CB in Bulk (3D). 20.5 o C. 33.3 o C. 41.5 o C. Crystal. Smectic A. Nematic. Isotropic.

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8CB Layers at Different Temperature

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  1. 8CB Layers at Different Temperature “Formation of Liquid Crystalline Phases from a Langmuir Monolayer” By K.A. Suresh and A. Bhattacharyya Langmuir1997, 13, 1377-1380 8CB Layers at Different Temperature

  2. Phase Transition of 8CB in Bulk (3D) 20.5 oC 33.3 oC 41.5 oC Crystal Smectic A Nematic Isotropic Temperature 8CB Layers at Different Temperature

  3. Typical Isotherm at 25 oC (T < 28 oC) 8CB Layers at Different Temperature

  4. Isotherm at 30 oC (28 oC < T < 36 oC) 8CB Layers at Different Temperature

  5. Isotherm at 40 oC (36 oC < T < 36 oC) 8CB Layers at Different Temperature

  6. Images under Fluorescence Microscope 30 oC 25 oC 1~40 um Area/Molecule = 10 A2 8CB Layers at Different Temperature

  7. Images under Reflection Microscope 25 oC 30 oC ~28 oC Thickness = Nλ/(2n) Area/Molecule = 10 A2 8CB Layers at Different Temperature

  8. Images under Polarized Microscope 30 oC, 10 A2 A/M Schlieren Textures Boojum-like Textures  Nematic Phase 8CB Layers at Different Temperature

  9. 8CB Layers at Different Temperature

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