Preparation of N-Doped TiO2/NiO Composite Electrode and its Photoelectrochemcal Characteristics

2011 ◽  
Vol 306-307 ◽  
pp. 344-347
Author(s):  
Chun Tao Wang ◽  
Wen Kui Zhang ◽  
Hui Huang ◽  
Xin Yong Tao
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Spin Coating ◽  
Composite Electrode ◽  
Sol Gel ◽  
Photoelectrochemical Properties ◽  
Visible Transmittance ◽  
Coating Method ◽  
Uv Visible ◽  
Transient Measurements

TiO2-xNx film was prepared by the combination of sol-gel and spin-coating method on indium-tin oxide (ITO) conducting glass substrate. Then an ITO/TiO2-xNx/NiO composite electrode was obtained by chemical bath deposition (CBD). The morphology, crystal structure and composition of the ITO/TiO2-xNx film were characterized by SEM, XRD, and XPS. The photoelectrochemical properties of the ITO/TiO2-xNx/NiO electrode were evaluated by photocurrent transient measurements and UV-visible transmittance spectra. The results showed that the ITO/TiO2-xNx/NiO electrode was sensitive to light and exhibited a noticeable photoelectrochromism.

Effects of Annealing Temperature of Indium Tin Oxide Thin Films Prepared onto Glass by Sol-Gel Spin Coating Method

2011 ◽  
Vol 343-344 ◽  
pp. 116-123
Author(s):  
Yu Ming Peng ◽  
Yan Kuin Su ◽  
Cheng Jye Chu ◽  
Ru Yuan Yang ◽  
Ruei Ming Huang
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Spin Coating ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Optical And Electrical Properties ◽  
Coating Method ◽  
Ito Thin Films

In this paper, the indium tin oxide (ITO) thin films were prepared by a sol-gel spin coating method and then annealed under different temperatures (400, 500 and 550°C) in a mixture atmosphere of 3.75% H2 with 96.25% N2 gases. The microstructure, optical and electrical properties of the prepared films were investigated and discussed. The XRD patterns of the ITO thin films indicated the main peak of the (222) plane and showed a high degree of crystallinity with an increase of the annealing temperature. In addition, due to the pores existing in the prepared films, the optical and electrical properties of the prepared films are degraded through the sol-gel process. Thus, the best transmittance of 70.0 %in the visible wavelength region and the lowest resistivity of about 1.1×10-2 Ω-cm were obtained when the prepared film was annealed at 550°C.

scholarly journals DYE SENSITIZED SOLAR CELL (DSSC) MENGGUNAKAN FILM TIPIS ZNO:B DAN EKSTRAK DYE DARI UBI UNGU

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Nurdin Siregar ◽  
Nurhabibah Purba ◽  
Motlan Motlan
Keyword(s):  
Solar Cell ◽  
Boric Acid ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Spin Coating ◽  
Sol Gel ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Zno Doping

Prototype DSSCdoping boron 2,5% telah berhasil disintetis dengan metode sol-gel spin coating. Penelitian mengenai dye sensitized solar cell (DSSC) dilakukan dengan menggunakan dye dari ekstrak ubi ungu, larutan elektrolit mosalyte dan elektroda lawan berupa platina. Elektrode kerja yaitu ZnO doping boron yang dideposisikan pada kaca konduktif ITO (Indium Tin Oxide). Variasi konsentrasi doping  adalah 2.5% dengan menggunakan boron lemah yaitu boric acid (H3BO3). Lapisan film tipis ZnO:B dikarakterisasi dengan menggunakan SEM, XRD, UV-Vis Spektrometer, dan FTIR. Berdasarkan karakterisasi UV-Vis, diperoleh nilai absorbansi larutan dye ubi ungu adalah 0,67 a.u pada panjang gelombang 515 nm.  Nilai energi gap dari film tipis ZnO:B 2,5% adalah 3,161 eV. Nilai ukuran kristal yang diperoleh yaitu 29 nm. Efisiensi DSSC pada konsentrasi doping boron 2,5% adalah sebesar 0,118%.Kata Kunci : Dye Sensitized Solar Cell, Boric acid, Indium Tin Oxide, Mosalyte, ZnO:B, Boron

Pengaruh Ketebalan Elektroda Kerja TIO2/Grafit Terhadap Efisiensi Dye Sensitized Solar Cells (Dssc)

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Nurhidayah Nurhidayah ◽  
Suwarni Suwarni ◽  
Sri Rahayu Alfitri Usna ◽  
M. Ficky Afrianto ◽  
Faizar Farid ◽  
...  
Keyword(s):  
Solar Cells ◽  
Tin Oxide ◽  
Spin Coating ◽  
Sol Gel ◽  
Dye Sensitized Solar Cells ◽  
Transparent Electrode ◽  
Dye Sensitized ◽  
Conductive Glass ◽  
Coating Method ◽  
Sensitized Solar Cells

Telah dilakukan pembuatan Dye Sensitized Solar Cells (DSSC) dengan elektroda kerja yang terbuat dari campuran TiO2 dan 14% grafit yang selanjutnya ditulis sebagai TiO2:C14%.Koloid TiO2:C14% dideposisikan pada substrat kaca konduktif Fluorine Doped Tin Oxide(FTO) dengan metode sol-gel-spin coating pada kecepatan 500, 1000 dan 1500 rpm selama 50 detik. Kemudian lapisan ini direndam selama 24 jam dalam pewarna (dye) yang diambil dari ekstrak kelopak bunga rosella (hibiscus sabdariffa). Untuk mengkarakterisasi bahan pembentuk sel surya dilakukan uji XRD dan SEM.  Uji efisiensi sel surya tersensitasi zat warna dihitung dengan menggunakan rangkaian karakteristik kurva IV. Dari hasil yang diperoleh ketebalan tertinggi diperoleh pada kecepatan putar 500 rpm dengan ketebalan lapisan 0,9 mm dan efisiensi yang dihasilkan adalah 0,014%.   The production of Dye Sensitized Solar Cells (DSSC) has been done. The transparent electrode is made by mixing of TiO2 and graphite 14% (TiO2:C14%). TiO2:C14% colloid is deposited on a conductive glass substrate Fluorine Doped Tin Oxide (FTO) by spin coating method at 500, 1000 and 1500 rpm during 50 second. Then, the layer is soaked of 24 hours in dye taken from the extract of rosella. SEM and XRD characterization are performed for looking properties of DSSC materials. The efficiency of DSSC is calculated by using the characteristic circuit IV curve. The highest efficiency value is obtained when the thickest active layer (0,9 mm) at 500 rpm, the resulting efficiency is 0,014%.

Tungsten Oxide (WO3) Films Prepared by Sol-Gel Spin-Coating Technique

2018 ◽  
Vol 280 ◽  
pp. 71-75 ◽  
Author(s):  
B. Wen Cheun Au ◽  
Kah Yoong Chan ◽  
Wai Leong Pang ◽  
Chu Liang Lee ◽  
Abd Hamid Mustafa
Keyword(s):  
Film Thickness ◽  
Tungsten Oxide ◽  
Indium Tin Oxide ◽  
Spin Coating ◽  
Sol Gel ◽  
Optical Transmittance ◽  
Visible Range ◽  
Smart Windows ◽  
Wide Range ◽  
Coating Method

Tungsten oxide (WO3) is a transition metal oxide with a wide range of applications such as displays, rear-view mirrors, electrochromic (EC) smart windows and gas sensors. Many techniques were adopted for the fabrication of WO3, namely magnetron sputtering, spray pyrolysis and sol-gel synthesis techniques. In this work, WO3films were deposited on indium tin oxide (ITO) coated glasses by sol-gel spin-coating method. The film thickness was varied by depositing different number of layers. The WO3film thickness and optical transmittance were determined using step profilometer and ultraviolet-visible (UV-Vis) spectrophotometer, respectively. WO3film thicknesses increased from 38 nm to 606 nmwith increasing number of deposited layers.The optical transmittance of the WO3films in visible range decreased with increasing film thickness. The optical transmittance were at least 70 % up to 10 deposited layers.WO3is a promising EC material in the application ofEC devices (ECDs).The application of WO3in the EC devices will be discussed.

scholarly journals Synthesis of SnO2 Thin Layer with a Doping Fluorine by Sol-Gel Spin Coating Method

2019 ◽  
Vol 5 (2) ◽  
pp. 175 ◽  
Author(s):  
Lalu Muliyadi ◽  
Aris Doyan ◽  
Susilawati Susilawati ◽  
Syamsul Hakim
Keyword(s):  
Thin Film ◽  
Thin Layer ◽  
Tin Oxide ◽  
Spin Coating ◽  
Sol Gel ◽  
Thin Layers ◽  
Basic Material ◽  
Spin Coating Method ◽  
Number Of Layers ◽  
Coating Method

A thin layer of tin oxide with doping Fluorine was synthesized using the sol-gel spin coating method. The synthesis aims to determine the quality of thin layers formed based on temperature variations and the number of layers. The basic material used is SnCl2.2H2O, while the doping material used is NH4F with variations in concentrations of dopants 0, 5, 10, 15, 20 and 25%. The substrate used is glass with a size of 10 x 10 x 3 mm. The synthesis of the thin layer includes substrate preparation, sol-gel making, thin film making, and heating process. At this stage SnO2:F is deposited on a glass substrate with sol-gel spin coating technique at the concentration of sol 1 M with doping levels of Fluorine 0, 5, 10, 15, 20 and 25%, and treated with maturation for 24 hours. Making a thin layer using a spin coater at a speed of 2000 rpm for 3 minutes. The layer made consists of one layer, two layers, three layers and four layers. The resulting layer shows that the higher the doping percentage, the higher the transparency of the layer. In addition, the more the number of layers, the lower the transparency level. Keywords: Thin Film, Tin Oxide, Fluorine, Sol-gel, Spin Coating

Effects of Annealing Condition on the Preparation of Indium-Tin Oxide (ITO) Thin Films via Sol-Gel Spin Coating Process

2005 ◽  
Vol 492-493 ◽  
pp. 325-330
Author(s):  
Hyun-Woong Han ◽  
Young Hoon Yun ◽  
Sung Churl Choi
Keyword(s):  
Thin Films ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Spin Coating ◽  
Sol Gel ◽  
Annealing Process ◽  
Coating Process ◽  
Spin Coating Process ◽  
Ito Thin Films ◽  
Surface Morphologies

Indium tin oxide (ITO) thin films were deposited on glass substrates via sol-gel spin coating process from a mixed solution of Indium (Ⅲ) acetylacetonate and Tin (Ⅳ) iso-propoxide. Then, ITO thin films were fired at 500°C, and then annealed at 500°C for 30 min with the sequential annealing process; VacuumN2Ar/H2, N2Ar/H2 and Ar/H2 gas. The effects of the different annealing processes on the surface morphologies and sheet resistance of ITO thin films were investigated. Sheet resistance values of ITO thin films treated under VacuumN2Ar/H2, N2Ar/H2 and Ar/H2 annealing process were 1.25 kohm/sq., 3.18 kohm/sq. and 4.92 kohm/sq., respectively. Actually, the sequential atmosphere gases and non-oxidizing gas, which were used in annealing process influenced the microstructural features or surface morphologies of ITO thin films: grain size and surface roughness. Thus, it was presumed that the sequential annealing condition influenced the densification behavior in the microstructural evolution of ITO thin films.

scholarly journals STUDI PREPARASI DAN KARAKTERISASI SEL SURYA BERBASIS TITANIA MELALUI PENYISIPAN LOGAM TEMBAGA (CU) DENGAN BERBAGAI VARIASI MASSA PADA LAPISAN AKTIF TITANIA

2017 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Rita Prasetyowati
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Sol Gel ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Doctor Blade ◽  
Structure Morphology ◽  
Uv Visible

 Abstrak                 Penelitian ini bertujuan untuk mengetahui pengaruh penyisipan logam tembaga (Cu) dengan berbagai variasi massa terhadap struktur morfologi dan komposisi bahan pada permukaan lapisan titania, absorbansi lapisan titania, resistansi lapisan titania, dan performansi sel surya berbasis titania. Konduktivitas yang dimaksud adalah pengukuran resistansi lapisan. Sedangkan performansi sel surya yang dimaksud adalah tegangan sel surya.                Preparasi lapisan titania-tembaga (TiO2-Cu) menjadi bentuk pasta dilakukan dengan menggunakan metode sol-gel. Pasta titania-tembaga dideposisikan pada elektroda transparan (Indium Tin Oxide) dengan metode doctor blade. Dilakukan lima variasi massa Cu yang disisipkan pada lapisan titania, yaitu 0,050 gram (Sampel 1); 0,075 gram (sampel 2);  0,100 gram (sampel 3); 0,0125 (sampel 4) dan 0,0150 (sampel 5). Masing-masing variasi massa Cu tersebut disisipkan pada 1 gram TiO2. Karakterisasi SEM dan EDS dilakukan pada lapisan titania-tembaga untuk mengetahui struktur morfologi dan komposisi bahan lapisan. Absorbansi lapisan dikarakterisasi dengan menggunakan UV-Visible spektrometer. Pengukuran resistansi lapisan dilakukan dengan menggunakan Jembatan Wheatstone. Sedangkan performansi sel surya dilakukan dengan mengukur tegangan sel surya.Kata kunci : titania, tembaga, morfologi permukaan, absorbansi, resistansi, sel surya Effect of Cu Insertion With Variation Of Mass on Titania Active Layer To Morphological Structure, Resistance, And Solar Cells Performance                                             Abstract            This study aims to determine the effect of insertion of copper (Cu) with a variety of mass to structure morphology and composition of surface layer of titania, absorbance of titania, resistance of titania and solar cell performance based on titania.. Solar cell performance is characterized from voltage of solar cell.                Preparation of titania-copper layer (TiO2-Cu) to form a paste was made using a sol-gel method. Pasta titania-copper deposited on a transparent electrode (Indium Tin Oxide) with a doctor blade method. There were five variations of Cu mass pasted on layers of titania, namely 0,050 grams (Sample 1); 0,075 grams (sample 2); 0,100 grams (3 samples); 0.0125 (sample 4) and 0.0150 (sample 5). Each variation of the mass of Cu is inserted in one gram of TiO2. SEM and EDS characterization performed on layers of titania-copper to know the structure morphology and composition of the titania-copper. Layer absorbance was characterized using UV-Visible spectrometer. Resistance of titania was measured using a Wheatstone bridge. The performance of solar cells measured by measuring the voltage of the solar cell.                Keywords: titania, copper, surface morphology, absorbance, resistance, solar cells

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