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Fitrilawati Fitrilawati
Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics Other

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Journal : Journal of Engineering and Technological Sciences

 1 
Siloxane based Organic-Inorganic Hybrid Polymers and their Applications for Nanostructured Optical/Photonic Components Hidayat, Rahmat; Gomulya, Widiyanta; Pitriana, Pina; Irmansyah, Ryan; Miranti, Rany; Herman, Herman; Hidayat, Sahrul; Fitrilawati, Fitrilawati; Fujii, Akihiko; Ozaki, Masanori
Journal of Engineering and Technological Sciences Vol 44, No 3 (2012)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.077 KB) | DOI: 10.5614/itbj.eng.sci.2012.44.3.1

Abstract

We have studied the preparation of organic-inorganic hybrid polymer precursors  by  sol-gel  technique  and  their  utilization  for  nanostructured  optical components for photonic applications. The gel polymer precursors were prepared from  siloxane  modified  by  polymerizable  acrylate  groups,  which  can  be processed  further  by  photopolymerization  process.  Molecular  structure characterizations by means of the FTIR measurements indicate the conversion of C=C  bonds  into  C-C  bonds  after  photopolymerization.  This  bond  co nversion produces  high  cross-linking  between  the  organic  and  inorganic  moieties, resulting  in  thermally  stable and chemically resistant thin polymer layer which provide  unique  advantages  of  this  material  for  particular  optical/photonic applications.  By  employing  laser  interference  technique,  gratings  with periodicity between 400-1000 nm have been successfully fabricated. Application of  those  sub-micron  periodicity  of  grating  structure  as  active  elements  in optically  pumped  polymer  laser  system  and  Surface Plasmon Resonance  (SPR) based  measurement  system  have  been  also  explored.  The  experimental  results therefore  also  show  the  potential  applications  of  this  hybrid  polymer  as  a building material for micro/nano-photonics components. 
Siloxane based Organic-Inorganic Hybrid Polymers and their Applications for Nanostructured Optical/Photonic Components Rahmat Hidayat; Widiyanta Gomulya; Pina Pitriana; Ryan Irmansyah; Rany Miranti; Herman Herman; Sahrul Hidayat; Fitrilawati Fitrilawati; Akihiko Fujii; Masanori Ozaki
Journal of Engineering and Technological Sciences Vol. 44 No. 3 (2012)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.eng.sci.2012.44.3.1

Abstract

We have studied the preparation of organic-inorganic hybrid polymer precursors  by  sol-gel  technique  and  their  utilization  for  nanostructured  optical components for photonic applications. The gel polymer precursors were prepared from  siloxane  modified  by  polymerizable  acrylate  groups,  which  can  be processed  further  by  photopolymerization  process.  Molecular  structure characterizations by means of the FTIR measurements indicate the conversion of C=C  bonds  into  C-C  bonds  after  photopolymerization.  This  bond  co nversion produces  high  cross-linking  between  the  organic  and  inorganic  moieties, resulting  in  thermally  stable and chemically resistant thin polymer layer which provide  unique  advantages  of  this  material  for  particular  optical/photonic applications.  By  employing  laser  interference  technique,  gratings  with periodicity between 400-1000 nm have been successfully fabricated. Application of  those  sub-micron  periodicity  of  grating  structure  as  active  elements  in optically  pumped  polymer  laser  system  and  Surface Plasmon Resonance  (SPR) based  measurement  system  have  been  also  explored.  The  experimental  results therefore  also  show  the  potential  applications  of  this  hybrid  polymer  as  a building material for micro/nano-photonics components. 
Investigation of Dy3+ Ion Doped Borate Glasses and Their Potential for WLED and Laser Application Juniastel Rajagukguk; Lia Yuliantini; Fitrilawati Fitrilawati; Mitra Djamal; Jakrapong Kaewkhao
Journal of Engineering and Technological Sciences Vol. 52 No. 6 (2020)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2020.52.6.9

Abstract

In this research, Dy3+ ion-doped Na2O-PbO-ZnO-Li2O-B2O3 glasses were developed using the melt and quenching method. The addition of Dy3+ ions in the glass improved the optical properties. The XRD graph verified the amorphous of the glass sample. FTIR showed the vibration of BO3 and BO4 in the structure of the glass. The enhancement of NBOs in the structure of the glass affected the reduction of the bandgap energy of the glass. The hypersensitive transition of the present glass was found at 1270 nm (infrared region) due to electron movement from the 6H15/2 level to the 6H9/2+6F11/2 level. The strong white emission of the glasses came from 575 nm (yellow region) and 483 nm (blue region) when excited by 349 nm. The CIE 1931 chromaticity was located at (0.37;0.40) and verified the white emission of the glasses. Meanwhile, the trendline of the JO parameter was W2 > W6 > W4,indicating the high ionic character of the glass structure. The value of the calculated branching ratio and emission cross-section of Dy_1.0 glass was 0.64 and 0.90 x 10-20 cm2, respectively. From the analysis of results, the present glass has high potential for WLED and laser application.
Co-Authors Agustin P. Mastiti Akihiko Fujii Akihiko Fujii Anita Anggraeni Annisa Aprilia Annissa Aprilia Aprilia, Annisa ARDI, ATIKAH Ayi Bahtiar Diyan Unmu Dzujah Fitri Yuliasari H. A. Melati - H. Akiyama - Hanipah, Iip Hendro Hendro Herman Herman Herman Herman Hidayat - I Made Joni Istiqamah Nurul Hikmah Jakrapong Kaewkhao Jedija Monandang Aurellia Juniastel Rajagukguk K. Tamada - Lia Yuliantini Lukman Nulhakim Lusi Safriani Marcelina, Vika Masanori Ozaki Masanori Ozaki Mastiti, Agustin P. May On Tjia Mitra Djamal N. Syakir - Norman Syakir Norman Syakir, Norman NOVIANTI, RESSA MUSRIPAH Nur Khanifah Pina Pitriana Pina Pitriana Rahmat Hidayat Rahmat Hidayat Rajagukguk, Juniastel Rany Miranti Rany Miranti RISDIANA RISDIANA, RISDIANA Rosmiati - Rustam Efendi Siregar Ryan Irmansyah Ryan Irmansyah S. Hidayat - S. Sesiaria - Saajidah Fathinal Haq Sahrul Hidayat Siregar, R.E Titis Amelia Tuti Susilawati Unmu Dzujah, Diyan Utami Yuliani Vicka P. Lestari Vika Marcelina Vika Marcelina W. Suratno - W.Widorini - Widiyanta Gomulya Widiyanta Gomulya Wildan Abdussalam Yasmin Fauziah, Gita Maulida Yayah Yuliah Yeni Kurniawati Yeni W Hartati Yuliani, Utami YULIASARI, FITRI Yusi S. Syamsiar