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Ditemukan 8682 dokumen yang sesuai dengan query
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"Nanotechnology, that which deals with materials and phenomena in nanometer dimensions (a millionth of a millimeter or 10 -9m) , is a highly interdisiplinary field..."
Artikel Jurnal  Universitas Indonesia Library
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Boca Raton: Chapman and Hall/CRC, 2002
620.5 NAN
Buku Teks SO  Universitas Indonesia Library
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Foster, Lynn E
New Jersey: Prentice-Hall, 2006
620.5 FOS n
Buku Teks SO  Universitas Indonesia Library
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Mitin, V. V. (Vladimir Vasil`evich)
"Increasing miniaturization of devices, components, and integrated systems requires developments in the capacity to measure, organize, and manipulate matter at the nonoscale. This textbook is a comprehensive, interdisciplinary account of the technology and science that underpin nanoelectronics, covering the underlying physics, nanostructures, nanomaterials, and nanodevices. Without assuming prior knowledge of quantum physics, this book provides a unifying framework for the basic ideas needed to understand the recent developments in the field." "Numerous illustrations, homework problems, and interactive Java applets help the student to appreciate the basic principles of nanotechnology, and to apply them to real problems. Written in a clear yet rigorous and interdisciplinary manner, this textbook is suitable for advanced undergraduate and graduate students in electrical and electronic engineering, nanoscience, materials, bioengineering, and chemical engineering.
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Cambridge : Cambridge University Press, 2012
621.381 MIT i
Buku Teks  Universitas Indonesia Library
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"This reference provides a comprehensive review of various nanotechnologies with a view to their biomedical applications. With chapters contributed by distinguished scientists from diverse disciplines, Biomedical applications of nanotechnology :
- Reviews recent advances in the designing of various nanotechnologies based
on nucleic acids, polymers, biomaterials, and metals
- Discusses biomedical nanotechnology in areas such as drug and gene delivery
- Covers advanced aspects of imaging and diagnostics
- Includes a chapter on the issue of nanotoxicology
Complete with figures and tables."
Hoboken, NJ: Wiley-Interscience, 2007
e20395797
eBooks  Universitas Indonesia Library
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Erdem, Talha
"This book reviews the application of semiconductor nanocrystals also known as colloidal quantum dots (QDs) to LED lighting for indoors and outdoors as well as LED backlighting in displays, summarizing the color science of QDs for lighting and displays and presenting recent developments in QD-integrated LEDs and display research. By employing QDs in color-conversion LEDs, it is possible to simultaneously accomplish successful color rendition of the illuminated objects and a good spectral overlap between the emission spectrum of the light source and the sensitivity of the human eye at a warm white color temperature-something that is fundamentally challenging to achieve with conventional sources, such as incandescent and fluorescent lamps, and phosphor-based LEDs."
Singapore: Springer Nature, 2019
e20507222
eBooks  Universitas Indonesia Library
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"This book presents the fabrication of optoelectronic nanodevices. The structures considered are nanowires, nanorods, hybrid semiconductor nanostructures, wide bandgap nanostructures for visible light emitters and graphene. The device applications of these structures are broadly explained. The book deals also with the characterization of semiconductor nanostructures. "
Berlin: Springer, 2012
e20406047
eBooks  Universitas Indonesia Library
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Muhammad Iqbal Syauqi
"Dye Sensitized Solar Cell DSSC berbasis TiO2 merupakan tipe sel surya yang menarik perhatian karena proses fabrikasi yang mudah, biaya pembuatan yang murah, dan efisiensi yang menjanjikan. Dalam penelitian ini dilakukan fabrikasi DSSC menggunakan TiO2 nanotube yang disintesis dengan teknik Rapid Breakdown Anodization RBA dan Ultrafast Room Temperature Cristalization URTC . TiO2 kemudian dideposisikan pada substrat kaca Fluor Tin Oxide FTO menggunakan metode doctor blade, disensitasi dengan zat warna kurkumin, dan dirangkai sebagai elektroda kerja sel surya bersama elektroda counter berbasis karbon transparan yang disintesis menggunakan metode liquid-liquid interfacial system. Karakterisasi dilakukan dengan XRD, UV-VIS DRS, SEM, FTIR, Raman Spectroscopy, dan Potensiostat EDAQ. Hasil penelitian menunjukkan, metode URTC dapat merubah bentuk TiO2 amorf menjadi fasa kristalin anatase. Fotoaktivitas TiO2-URTC pada daerah UV sebesar 0,10 mA/cm2 pun tidak terlalu jauh dari fotoaktivitas TiO2-450C. Di sisi lain, elektroda counter karbon transparan FTO/Ct berhasil disintesis dan memberikan transimisi rata-rata 58,26 pada daerah sinar tampak dengan kemampuan elektrokatalitik lebih baik dari FTO. Uji kinerja DSSC dilakukan terhadap sel surya dengan rangkaian FTO/TiO2-URTC/kurkumin//FTO/Ct. Hasilnya menunjukkan bahwa DSSC ini memberikan efisiensi sebesar 0,467 pada penyinaran depan dan 0,262 pada penyinaran belakang. Nilai efisiensi tersebut tidak berbeda jauh dengan efisiensi DSSC dengan komponen FTO/TiO2-450C/kurkumin//FTO/Pt, yaitu 0,517 untuk penyinaran depan dan 0,356 untuk penyinaran belakang.

based Dye Sensitized Solar Cell DSSC is one of the most attractive solar cell, because of its easy fabrication, low cost, and relatively promising efficiency. In this research, we developed solar cell using TiO2 nanotube powder that was made by Rapid Breakdown Anodization RBA and Ultrafast Room Temperature Cristalization technique. The prepared TiO2 then was sensitized using curcumin dyes and utilized to construct DSSC using carbon transparent counter electrode prepared by liquid liquid interface system technique. Characterizations of the prepared materials were done by using XRD, SEM, UV Vis DRS, FTIR, Raman spectroscopy, and Electrochemical working station. The results indicate that by using URTC technique, the freshly prepared TiO2 was transformed to anatase crystalline phase. Furthermore, photoactivity of TiO2 ndash URTC in UV 0.10 mA cm2 just equal to that was being prepared by the conventional technique 0.12 mA cm2 . On the other hand, carbon transparent electrode FTO Ct was successfully prepared and gives 58.26 transparency in visible light region but having catalytic activity better than bare FTO. Furhermore, efficiency test of constructed DSSC FTO TiO2 URTC curcumin FTO Ct showed efficiency of 0.467 for front illumination and 0.262 for back illumination. This result is still lower, but not too far than conventional DSSC with components FTO TiO2 450C curcumin FTO Pt which gives 0.517 efficiency for front illumination and 0,356 for back illumination."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2017
S70094
UI - Skripsi Membership  Universitas Indonesia Library
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Nurul Tri Alona Sari
"ABSTRAK
Litium titanat (Li4Ti5O12) merupakan anoda yang menjanjikan untuk menghasilkan baterai Lithium Ion dengan kapasitas daya yang tinggi. Selain itu, Silikon memiliki kapasitas secara teori sebesar 3590 mAh g-1 untuk fasa Li15Si4 di temperatur ruang. Akan tetapi memiliki kekurangan dalam ekspansi volume yang besar selama cycling dan memperpendek siklus hidup baterai, ketidakstabilan layer SEI karena perubahan material Si, dan konduktivitas elektrik yang rendah. Akan tetapi nano partikel dari Si memiliki kapasitas spesifik yang lebih tinggi dan kapasitas penyimpanan yang lebih baik apabila dibandingkan dengan partikel Si yang memiliki ukuran mikro. Sehingga dilakukan penelitian Li4Ti5O12 dan nano silikon memiliki sinergi yang baik dalam dalam kapasitas sebagai komposit. Penelitian ini dilakukan proses sintesis dengan menggunakan metode solid state. Pengaruh solid state-ball mill pada karakterisasi serbuk Li4T5O12 yang dihasilkan memiliki ukuran rata-rata partikel 225,95 nm dan tingkat kristalinitas 67%. Pada proses fabrikasi baterai dilakukan dengan penambahan material aktif nano silikon dengan variasi masa 5%, 10% dan 15%. Tujuan penambahan material aktif agar mampu meningkatkan kapasitas dari baterai. Kapasitas yang dimiliki oleh LTO-nSi5 sebesar 191,58 mAh/g, LTO-nSi10 197,5 mAh/g, LTO-nSi15 sebesar 195,6 mAh/g. LTO-nSi10 memiliki nilai konduktivitas yang paling besar dibandingkan LTO-nSi5 dan LTO-nSi15. Sampel LTO-nSi15 menunjukkan nilai resistivitas yang paling besar, menunjukkan bahwa nilai konduktivitas yang didapatkan semakin rendah disetiap penambahan kadar silikon nano.

ABSTRAK
Lithium titanate (Li4Ti5O12) is a promising anode to produce Lithium Ion battery with high power. In addition, silicon has a theoretical capacity of 3590 mAh g-1 to phase Li15Si4 at room temperature. But lacked by the large volume expansion during cycling and shorten the cycle life of the battery, SEI layer instability due to a material change Si, and low electrical conductivity. However nano particles of Si has higher specific capacity and storage capacity are better when compared with Si particles that has a micro sizes. In this research Li4Ti5O12 and nano silicon has a good synergy in the capacity of battery as a composite. This research was synthesized by using solid state methods. Effect of solid-state route and ball mill at Li4T5O12 powder produced has an average particle size of 225.95 nm and the degree of crystallinity of 67%. In the battery fabrication process is done by adding the active material to the silicon nano variation of 5%, 10% and 15% in wt. The additions of active material in order to raise the capacity of the battery. Capacity owned by LTO-nSi5 of 191.58 mAh / g, LTO-nSi10 197.5 mAh / g, and LTO-nSi15 195.6 mAh / g. LTO-nSi10 has the greatest conductivity values ​​compared LTO-nSi5 and LTO-nSi15. LTO-nSi15 samples showed the greatest resistivity values, indicating that the conductivity values ​​obtained at each addition of the lower grade of silicon nano."
2016
S63161
UI - Skripsi Membership  Universitas Indonesia Library
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