Sifat Optik Film Disperse Red-1 Yang Dibuat Dengan Metode Efa-pvd

Tujuan dilakukannya penelitian ini adalah untuk mengkaji efek permukaan substrat ITO dan medan listrik luar dalam mengatur orientasi molekul film DR-1; dan juga mengkaji sifat optik film DR-1 untuk aplikasi divais fotonik. Metode fabrikasi yang digunakan adalah metode EFA-PVD (Electric Field Assisted Physical Vapor Deposition,). Metode tersebut adalah modifikasi dari metodekonvensional PVD (Physical Vapor Deposition) yang dilengkapi dengan penambahan medan listrik luar (E) dalam chamber. Film dibuat di atas permukaan substrat ITO (Indium Tin Oxide) dengan deposisi molekul-molekul DR-1 oleh variasi medan listrik luar. Film dianalisis dan dikarakterisasidengan menggunakan spektroskopi SEM, difraksi sinar-X, dan reflektometer. Hasil analisis pengukuran SEM, dan difraksi sinar-X memperlihatkan bahwa molekul-molekul DR-1 tersusun teratur (stacking) tegak lurus permukaan substrat, yang menunjukkan suatu indikasi efek permukaan (surfactant effect) substrat yang kuat dari ikatan hidrogen (hydrogen bonding) molekul DR-1 dengan substrat. Hasil pengukuran sifat optik menunjukkan bahwa dengan peningkatan medan listrik luar, terjadi peningkatan konsentrasi molekul-molekul DR-1 yang terdeposisi teratur paralel (stacking) tegak lurus permukaan substrat yang ditandai dengan peningkatan indeks bias film

Electromechanical properties of 1-3 piezoelectric ceramic/piezoelectric polymer composites

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Frequency response of magnetoelectric 1–3-type composites

Author name used in this publication: K. H. LamAuthor name used in this publication: C. Y. LoAuthor name used in this publication: H. L. W. Chan2009-2010 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Konduktivitas Fluida-Cairan Di Manifestasi Panas Bumi Bukit Kasih Kanonang Sulawesi Utara

Research on characteristics of fluid-liquid at hot spring water manifestation of Bukit Kasih Kanonang, Kabupaten Minahasa, North Sulawesi have been carried out. The hot spring water manifestation of the Bukit Kasih Kanonang has been known as one of natural tourism object in North Sulawesi. However, the fluid-liquid characterstics at this manifestation location are not yet identified. The aim of this research is to know the chemistry element composition in the fluid-liquid at the hot spring water manifestion Bukit Kasih Kanong and also physical properties such as conductivity and temperature of the fluid-liquid. This research result is very important information for the North Sulawesi community or tourist who visiting this location. The identification the element composition in the fluid-liquid has been measured by using XRF (X-Ray fluorescence spectrometry). And the conductivity and pH were measured using Prolab 2000 Schott Instruments. The experimental results of conductivity measurement and pH, and temperature of fluid-liquid in the three manifestation location are discussed in this article.  The experimental result shows that, the pH value  of  the fluid-liquid in the manifestion location is categorized as strong electrolit acid. The conductivity value of fluid-liquid is depent on its pH value. And the pH value is strongly determined by the Cloride acid composition which dissociates in the fluid-liquid.DOI: http://dx.doi.org/10.17977/um024v2i12017p02

Characteristics of Sudan Iii-Poly(N Vinylcarbazole) Composite Film for Optical Sensor Application

Photo-responsive molecule Sudan III has been developed in form of thin film to pursue their excellent properties especially for optical sensor device application. However, thin film of Sudan III possesses a weak mechanical property. And therefore in order to enhance this functional property of the Sudan III molecule was embedded within polymer matrix to form composite material. In this research, the thin films composite of Sudan III-Poly(N-Vinylcarbazole) or Sudan III/PVK were fabricated by using casting and spin coating methods. The structure of Sudan III-Poly(N-Vinylcarbazole) composite material were characterized by using FTIR, XRD measurement and for the optical property (absorbance) by UV-VIS measurement. In this paper the experiment results are presente

PELATIHAN PEMBUATAN PERLENGKAPAN RUMAH MENGGUNAKAN HOLLOW BAJA RINGAN DI DESA KARANGJAYA

Training for making home furnishings using light steel hollows in Karangjaya Village focuses on transferring technological and expertise developments to improve human resource development related to conceptual (ideas or ideas for using hollows and designing) and technical skills (calculating the amount of material, measuring shelf length, cutting, and assembling materials into finished goods. Providing supplies to the public with material and knowledge about various uses of mild steel that can be utilized, is expected to be a motivation for the younger generation in particular and the community to improve skills which hopefully will be useful in the future. Results that can be made in this training is a book wall shelf that will be given by the local madrasah as a place for books and the Qur'an as a form of support for the group 19 literacy program in Karangjaya village

A Numerical Modeling for Study Marine Current in the Manado Bay, North Sulawesi

This study is investigating about marine currents provided electrical energy through the numerical model. The objective of this study is to know the power available distributions in the Manado Bay, North Sulawesi, Indonesia. The Manado Bay was width 2200 m with 79 m of depth. In computation, we are made grids in x and y horizontal were 7 m respectively, also for z vertical of four layers. The results shown that the power available distributions in the Manado Bay at 0.1 Sv were 0.00-20.00 kW/m2 when low tide currents and when high tide currents were 0.00-105 kW/m2. The values will enable for marine currents power plant in the Manado Bay to future

Effects of Substrate Temperature on Vacuum Deposited Thin Film of Disperse Red 1 on ITO Glass

Abstract. Highly crystalline thin films of photorefractive Disperse Red 1 (DR 1) molecule have been fabricated on clean substrate of ITO (indium tin oxide) glass by means of physical vapor deposition at various substrate temperatures. In addition to molecular orientation and organization revealed by their XRD and FTIR spectral characteristic and the enhancement of those effects by substrate temperature, further analysis of FTIR spectrum around nitrobenzene absorption band indicates the formation of strong hydrogen bond resulting in a head-tail stacking of the molecules. The deposited films also show systematic reduction of light absorption in the visible region with increasing substrate temperature. This modification of the optical property is clearly favorable for long wavelength photonic applications of DR1 film. Pengaruh Suhu Substrat pada Film Tipis 'Disperse Red 1' yang Dideposisi pada Gelas ITO dalam VakumSari. Dalam eksperimen ini telah berhasil diperoleh melalui proses deposisi vakum sejumlah film tipis bahan fotorefraktif dari molekul "Disperse Red 1" (DR1) dengan krisalinitas tinggi di atas substrat gelas ITO ("indium tin oxide") pada berbagai suhu. Selain efek orientasi dan organisasi molekul yang ditunjukkan oleh karakteristik spectra XRD dan FTIR bersangkutan serta peningkatan efek tersebut dengan suhu substrat, analisis lebih lanjut dari data FTIR di sekitar pita absorpsi nitrobenzene telah mengungkapkan tanda embentukan ikatan hydrogen yang kuat yang menghasilkan susunan "head-tail" yang bertumpuk. Film yang terdeposisi juga memperkihatkan pengurangan absorpsi cahaya secara sistematik di daerah tampak, seiring dengan peningkatan suhu substrat. Perubahan sifat optik ini jelas bermanfaat bagi aplikasi film DR1 untuk devais fotonik dalam daerah gelombang panjang