HgS nanoparticles : Structure and optical properties
Nanocrystalline HgS thin films were synthesized by using an electrochemical route under galvanostatic conditions. Quantum size effects have resulted in the change of the semi-metallic behavior of bulk β-HgS (Eg=-0.5 eV) to semiconducting behavior with an absorption onset around 1.4 eV as confirmed f...
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| Veröffentlicht in: | Applied physics. A, Materials science & processing Materials science & processing, 2007-03, Vol.86 (4), p.447-450 |
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| container_title | Applied physics. A, Materials science & processing |
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| creator | PATEL, B. K RATH, S SARANGI, S. N SAHU, S. N |
| description | Nanocrystalline HgS thin films were synthesized by using an electrochemical route under galvanostatic conditions. Quantum size effects have resulted in the change of the semi-metallic behavior of bulk β-HgS (Eg=-0.5 eV) to semiconducting behavior with an absorption onset around 1.4 eV as confirmed from optical absorption studies. Glancing angle X-ray diffraction analysis confirms the presence of β-HgS (zinc-blend structure) with prominent crystallographic planes of (200), (220) and (311) in the deposit. This is consistent with results obtained from transmission electron diffraction studies. The Raman scattering measurements identified a broad 1LO confined phonon mode at 247 cm-1 which suggests that the crystalline sizes are small. |
| doi_str_mv | 10.1007/s00339-006-3812-9 |
| format | Article |
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The Raman scattering measurements identified a broad 1LO confined phonon mode at 247 cm-1 which suggests that the crystalline sizes are small.</description><identifier>ISSN: 0947-8396</identifier><identifier>EISSN: 1432-0630</identifier><identifier>DOI: 10.1007/s00339-006-3812-9</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>Absorption ; Applied physics ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Crystallography ; Exact sciences and technology ; Lattice dynamics ; Materials science ; Nanocrystalline materials ; Nanocrystals and nanoparticles ; Nanoparticles ; Nanoscale materials and structures: fabrication and characterization ; Optical properties ; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation ; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures ; Phonons in low-dimensional structures and small particles ; Physics ; Raman spectra ; Size effects ; Thin films ; Transmission electron diffraction</subject><ispartof>Applied physics. 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N</creatorcontrib><title>HgS nanoparticles : Structure and optical properties</title><title>Applied physics. A, Materials science & processing</title><description>Nanocrystalline HgS thin films were synthesized by using an electrochemical route under galvanostatic conditions. Quantum size effects have resulted in the change of the semi-metallic behavior of bulk β-HgS (Eg=-0.5 eV) to semiconducting behavior with an absorption onset around 1.4 eV as confirmed from optical absorption studies. Glancing angle X-ray diffraction analysis confirms the presence of β-HgS (zinc-blend structure) with prominent crystallographic planes of (200), (220) and (311) in the deposit. This is consistent with results obtained from transmission electron diffraction studies. The Raman scattering measurements identified a broad 1LO confined phonon mode at 247 cm-1 which suggests that the crystalline sizes are small.</description><subject>Absorption</subject><subject>Applied physics</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Crystallography</subject><subject>Exact sciences and technology</subject><subject>Lattice dynamics</subject><subject>Materials science</subject><subject>Nanocrystalline materials</subject><subject>Nanocrystals and nanoparticles</subject><subject>Nanoparticles</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Optical properties</subject><subject>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</subject><subject>Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures</subject><subject>Phonons in low-dimensional structures and small particles</subject><subject>Physics</subject><subject>Raman spectra</subject><subject>Size effects</subject><subject>Thin films</subject><subject>Transmission electron diffraction</subject><issn>0947-8396</issn><issn>1432-0630</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpFUE1LxDAQDaLguvoDvBXEY3SayVe9yeK6woKH1XNI00S6rG1N2oP_3ixdcC7DMO_Nm_cIuS3hoQRQjwkAsaIAkqIuGa3OyKLkyChIhHOygIorqrGSl-QqpT3k4owtCN987YrOdv1g49i6g0_FU7Eb4-TGKfrCdk3RD3lhD8UQ-8FnkE_X5CLYQ_I3p74kn-uXj9WGbt9f31bPW-oQcKSi0aJWtQuu4q6BoBUgSIe-9sh08NJjg3X-WzDOfROYzjPTLjCRvaDCJbmb72bpn8mn0ez7KXZZ0jApOVdKa8yocka52KcUfTBDbL9t_DUlmGM4Zg7H5HDMMRxTZc796bJN2VuItnNt-idqAVIIgX-0gWL1</recordid><startdate>20070301</startdate><enddate>20070301</enddate><creator>PATEL, B. 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K</creatorcontrib><creatorcontrib>RATH, S</creatorcontrib><creatorcontrib>SARANGI, S. N</creatorcontrib><creatorcontrib>SAHU, S. N</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Applied physics. A, Materials science & processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>PATEL, B. K</au><au>RATH, S</au><au>SARANGI, S. N</au><au>SAHU, S. N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>HgS nanoparticles : Structure and optical properties</atitle><jtitle>Applied physics. A, Materials science & processing</jtitle><date>2007-03-01</date><risdate>2007</risdate><volume>86</volume><issue>4</issue><spage>447</spage><epage>450</epage><pages>447-450</pages><issn>0947-8396</issn><eissn>1432-0630</eissn><abstract>Nanocrystalline HgS thin films were synthesized by using an electrochemical route under galvanostatic conditions. Quantum size effects have resulted in the change of the semi-metallic behavior of bulk β-HgS (Eg=-0.5 eV) to semiconducting behavior with an absorption onset around 1.4 eV as confirmed from optical absorption studies. Glancing angle X-ray diffraction analysis confirms the presence of β-HgS (zinc-blend structure) with prominent crystallographic planes of (200), (220) and (311) in the deposit. This is consistent with results obtained from transmission electron diffraction studies. The Raman scattering measurements identified a broad 1LO confined phonon mode at 247 cm-1 which suggests that the crystalline sizes are small.</abstract><cop>Berlin</cop><pub>Springer</pub><doi>10.1007/s00339-006-3812-9</doi><tpages>4</tpages></addata></record> |
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| subjects | Absorption Applied physics Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Crystallography Exact sciences and technology Lattice dynamics Materials science Nanocrystalline materials Nanocrystals and nanoparticles Nanoparticles Nanoscale materials and structures: fabrication and characterization Optical properties Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures Phonons in low-dimensional structures and small particles Physics Raman spectra Size effects Thin films Transmission electron diffraction |
| title | HgS nanoparticles : Structure and optical properties |
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