Polydopamine thin film-assisted patterned chemical bath deposition of ZnO nanorods on arbitrary substrates

CrystEngComm ◽  
2017 ◽  
Vol 19 (41) ◽  
pp. 6182-6188 ◽  
Author(s):  
Xuehui Wang ◽  
Weihua Hu

Patterned nanostructures tethered on various substrates are of essential importance for both fundamental research and practical application but often require tedious and expensive fabrication procedures.

2014 ◽  
Vol 602-603 ◽  
pp. 871-875
Author(s):  
Yen Pei Fu ◽  
Jian Jhih Chen

In this study, ZnO films, prepared by Chemical Bath Deposition (CBD), are applied as the conductive layers for thin film solar cells. Zinc acetate is used as a source of zinc, and different proportions of ammonia solution are added and well mixed. The growth of zinc oxide films in reaction solutions is taken place at 80°C and then heated to 500°C for one hour. In this study, the different ammonia concentrations and deposition times is controlled. The thin film structure is Hexagonal structure, which is determined by X-ray diffraction spectrometer (XRD) analysis. Scanning electron microscopy (SEM) is used as the observation of surface morphology, the bottom of the film is the interface where the heterogeneous nucleation happens. With the increase of deposition time, there were a few attached zinc oxide particles, which is formed by homogeneous nucleation. According to UV / visible light (UV / Vis) absorption spectrometer transmittance measurements and the relationship between/among the incident wavelength, it can be converted to the energy gaps (Eg), which are about 3.0 to 3.2eV, by using fluorescence spectroscopy analysis. The emission of zinc oxide films has two wavelengths which are located on 510nm and 570nm. According to Based on the all analytic results, the ammonia concentration at 0.05M, and the deposition time is 120 minutes, would obtain the conditions of ZnO films which is more suitable for applications of conductive layer material in thin film solar cell.


2016 ◽  
Vol 176 ◽  
pp. 232-236 ◽  
Author(s):  
Kamrul Hassan ◽  
A.S.M. Iftekhar Uddin ◽  
Farman Ullah ◽  
Yong Soo Kim ◽  
Gwiy-Sang Chung

CrystEngComm ◽  
2022 ◽  
Author(s):  
Seon-Mi Jin ◽  
Jun Ho Hwang ◽  
Jung Ah Lim ◽  
Eunji Lee

Solution-processable precrystalline nanowires (NWs) of conjugated polymers (CPs) have garnered significant attention in fundamental research based on crystallization-driven self-assembly and in the roll-to-roll fabrication of optoelectronic devices such as organic...


2008 ◽  
Author(s):  
Fangming Cui ◽  
Lei Wang ◽  
Xiongfei Chen ◽  
Xia Sheng ◽  
Deren Yang ◽  
...  

2010 ◽  
Vol 256 (22) ◽  
pp. 6871-6875 ◽  
Author(s):  
Y. Zhang ◽  
X.Y. Dang ◽  
J. Jin ◽  
T. Yu ◽  
B.Z. Li ◽  
...  

2010 ◽  
Vol 6 (2) ◽  
pp. 121-126 ◽  
Author(s):  
Fitria Rahmawati ◽  
Sayekti Wahyuningsih ◽  
Pamularsih A.W

Thin film of TiO2 on graphite substrat has been prepared by means of chemical bath deposition. Cetyltrimethylammonium Bromide served  as linking agent of synthesized TiO2 to graphite substrate.The optical microscope and Scanning Electron Microscope (SEM) indicate that surfactant concentration affects the pore morphology of thin film Surface Area Analysis (SAA) of thin film indicated that the pore of thin film included in mesopore category. The anatase phase of TiO2 quantity arised as the surfactant concentration increase, gave high efficiency of induced photon conversion to current efficiency (% IPCE).   Keywords: thin film, TiO2, deposition, graphite


2011 ◽  
Vol 364 ◽  
pp. 35-39 ◽  
Author(s):  
Salina Muhamad ◽  
Abu Bakar Suriani ◽  
Mohamad Hafiz Mamat ◽  
Rafidah Ahmad ◽  
Mohamad Rusop

Rectifying behavior more than 3 orders of aligned zinc oxide (ZnO) nanorods grown on Mg0.3Zn0.7O thin film template using chemical bath deposition method was observed, giving a barrier height of 0.75 eV, and the ideality factor achieved was almost 6, which was analyzed using thermionic emission theory. Field emission scanning electron microscope (FESEM) images revealed that the grown ZnO was in hexagonal shape, uniformly distributed and in vertically aligned form. The crystallinity of the sample being studied using X-ray diffraction (XRD), where the highest peak was found at (002) phase, confirming that high crytallinity of ZnO was attained. The effect of metal/semiconductor junction between metal and aligned ZnO nanorods was discussed in further details.


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