Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Bhaskar Kumar Grandhe"'
Autor:
Jung Hyun Jeong, Sang Su Kim, Bhaskar Kumar Grandhe, Chinnambedu Murugesan Raghavan, Soung Soo Yi, Dong-Soo Shin, Kiwan Jang, Vengala Rao Bandi
Publikováno v:
Thin Solid Films. 547:207-211
Single crystalline pure and rare-earth metal ions (Eu3 + and Ce3 +) doped TiO2 nanowire arrays were prepared on conductive fluorine doped indium tin oxide substrates by a facile hydrothermal method. Initially the conditions and parameters were optimi
Autor:
Ho-Sueb Lee, Dong-Soo Shin, Soung Soo Yi, Vengala Rao Bandi, Jung Hyun Jeong, Kiwan Jang, Bhaskar Kumar Grandhe
Publikováno v:
Journal of Nanoscience and Nanotechnology. 13:7680-7684
A rare-earth metal ion (Eu3+) doped ZnO nanocomposites have been successfully synthesized by employing wet chemical procedure using multi-wall carbon nanotubes (MWCNT's) as removable template. The preparation was carried out by immersing empty and dr
Autor:
M. Jayasimhadri, Kiwan Jang, Dong-Soo Shin, Ho-Sueb Lee, Soung Soo Yi, Bhaskar Kumar Grandhe, Jung Hyun Jeong, Vengala Rao Bandi
Publikováno v:
Optics Communications. 294:208-212
Eu3+ doped K2La2Ti3O10 (KLT) phosphors were prepared by means of conventional solid state reaction method. It has exhibited an intense excitation band at around 466 nm, which matches well to the popular emission line from a GaN based blue light-emitt
Autor:
Sang Su Kim, Tae Kwon Song, Jae-Min Lim, Bhaskar Kumar Grandhe, Kiwan Jang, Dong-Soo Shin, Yong-Ill Lee, Vengala Rao Bandi
Publikováno v:
Metals and Materials International. 19:507-511
Eu3+ doped Gd2O3 nanotubes have been synthesized using multi wall carbon nanotubes as removable templates by employing a liquid phase deposition method. The prepared Eu3+ doped Gd2O3 nanotubes were characterized by means of x-ray diffraction (XRD), s
Autor:
Dong Hyun Bae, Vengala Rao Bandi, Hyun-Joo Woo, Kiwan Jang, Jaeho Yoon, Bhaskar Kumar Grandhe, Ho-Seub Lee, Ji-Yeon Park, Jung Hyun Jeong, Soung Soo Yi
Publikováno v:
Journal of Nanoscience and Nanotechnology. 13:848-852
A novel phosphor namely CaLa2ZnO5 doped with Eu3+ ions were prepared by conventional solid state reaction method. We have studied and optimized various constraints like sintering temperature, sintering time and dopant concentration. XRD, SEM profiles
Autor:
Jung Hyun Jeong, Ho-Sueb Lee, Soung Soo Yi, Kiwan Jang, Dong-Soo Shin, Vengala Rao Bandi, Bhaskar Kumar Grandhe
Publikováno v:
Ceramics International. 38:6273-6279
This paper reports on the photoluminescence properties of Na 1− y Li y Ca 1− x PO 4 : x Eu 2+ phosphors synthesized by a solid state reaction method. The prepared phosphors have been thoroughly characterized by means of X-ray diffraction (XRD), F
Autor:
Kiwan Jang, Jung Hyun Jeong, Bhaskar Kumar Grandhe, Soung Soo Yi, Ho-Sueb Lee, Dong-Soo Shin, Vengala Rao Bandi, Sundara Ramaprabhu
Publikováno v:
Composites Part B: Engineering. 43:1192-1195
YVO 4:Eu 3+ nanocomposites have been synthesized by means of a modified co-precipitation method (CP-CNT). Multi walled carbon nanotubes (MWCNT's) have been employed in the synthesis of the YVO 4:Eu 3+ nanocomposites to enhance its photoluminescence e
Autor:
S. Buddhudu, Sundara Ramaprabhu, K. Sivaiah, Kiwan Jang, Vengala Rao Bandi, Bhaskar Kumar Grandhe
Publikováno v:
Optics Communications. 285:1194-1198
This paper reports on the spectral analysis of novel Lithium Zinc Vanadate (LiZnVO 4) phosphor prepared by a solid state reaction method. Emission spectrum of LiZnVO 4 has shown a bright green emission at 533 nm with ? exci = 359 nm. A bright green c
Autor:
Ho-Sueb Lee, Kiwan Jang, Jung Hyun Jeong, Bhaskar Kumar Grandhe, Soung Soo Yi, Vengala Rao Bandi, Dong-Soo Shin
Publikováno v:
Journal of Alloys and Compounds. 512:264-269
A novel class of orange–red phosphors namely CaLa2ZnO5 (CLZ) doped with Eu3+ ions were prepared by adopting citrate based sol–gel method. Those were thoroughly characterized by means of XRD, SEM, Tg-DTA, photoluminescent (PL) spectral profiles. P
Autor:
Vengala Rao Bandi, Jae-Min Lim, S. S. Kim, Kiwan Jang, Bhaskar Kumar Grandhe, Dong-Soo Shin, Yong-Ill Lee, Tae Kwon Song
Publikováno v:
Journal of Luminescence. 131:2414-2418
CaZrSi 2 O 7 (CZS), a modification of the thortveitite family, was prepared as a polycrystalline powder material by the conventional solid-state reaction method. Structural, thermal and photoluminescence (PL) properties of the prepared material were