Studies on the structural, thermal and optical behaviour of solution grown organic NLO material: 8‐hydroxyquinoline

Crystal Research and Technology - Tập 42 Số 2 - Trang 195-200 - 2007
N. Vijayan1, G. Bhagavannarayana, K. K. Maurya1, Swades Pal2, Saumendra Nath Datta2, R. Gopalakrishnan3, P. Ramasamy4
1Materials Characterization Division, National Physical Laboratory, New Delhi 110 012, India
2Solid State Laser Division, LASTEC, Metcalfe House, New Delhi – 110 054, India
3Department of Physics, Anna University, Chennai 600 025, India
4SSN College of Engineering, Kalavakkam, Chennai 603 110, India

Tóm tắt

AbstractSingle crystal of 8‐hydroxyquinoline (8HQ) having chemical formula C9H7NO, an organic nonlinear optical (NLO) material has been successfully grown by slow evaporation solution growth technique at room temperature. The crystal system has been confirmed from the powder X‐ray diffraction (PXRD) analysis. The crystalline perfection was evaluated by high resolution X‐ray diffractometry (HRXRD). From this analysis we found that the quality of the crystal is quite good. However, a very low angle (tilt angle 14 arc sec) boundary was observed which might be due to entrapping of solvent molecules in the crystal during growth. Its optical behavior has been examined by UV‐Vis. analysis, which shows the absence of absorbance between the wavelengths ranging from 400 to 1200 nm. From the thermal analysis it was observed that the material exhibits single sharp weight loss starting at 113°C without any degradation. The laser damage threshold was measured at single shot mode and the SHG behavior has been tested using Nd:YAG laser as a source. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Tài liệu tham khảo

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Crystal Research and Technology

Tập 42 Số 2

195-200

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