Electrical Characterization of Electrochemically Grown ZnO Nanorods using STM

2012 ◽  
Vol 1391 ◽  
Author(s):  
Yuji Suzuki ◽  
Bright Ibheanacho ◽  
Arman Ahnood ◽  
Poopathy Kathirgamanathan ◽  
William Wong ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Solar Cells ◽  
Solar Cell ◽  
Electrical Properties ◽  
Electronic Devices ◽  
Zno Nanorods ◽  
Electrochemical Techniques ◽  
Electrical Characterization ◽  
Solar Cell Performance

AbstractZnO nanorods were grown homogenously and vertically on ITO using electrochemical techniques. The physical properties of the nanorods were characterized using SEM and optical absorption. The electrical conductivity, deduced using STM at different tip heights, and was found to be 20 Ω-cm with a carrier concentration of 3x1015 cm-3.The results show that electrochemically grown ZnO nanorods have electrical properties suitable for use in electronic devices such as solar cells and transistors. A-Si:H p-i-n solar cells were then deposited after the fabrication on the ZnO on ITO-coated substrates. The results show that the textured solar cell performance was 30% higher than the planar solar cell.

scholarly journals Graphene-Au Film Synthesized from GrO in Au-Aquaeus Solution as Counter Electrode For DSSC Application

2019 ◽  
Vol 7 (2) ◽  
pp. 24
Author(s):  
Marjoni Imamora Ali Umar
Keyword(s):  
Solar Cell ◽  
Electrical Properties ◽  
Counter Electrode ◽  
Annealing Temperature ◽  
Zno Nanorods ◽  
Annealing Treatment ◽  
Thermal Reduction ◽  
Multilayer Graphene ◽  
Solar Cell Performance ◽  
Probe Measurements

The study on the optical, electrical properties of multilayer graphene (MLG) obtained by thermal-reduction of graphene oxide (GrO) which was synthesized directly by mixing graphite oxide (GO) flake in 0.005, 0.01, 0.015, and 0.02 M of Au aqueous solution has been successfully performed. The resultant  GrO was subjected to an annealing temperature of 200°C, 400°C, 500°C for 1h to obtain MLG, and G-Au2x, G-Au4x, and G-Au5x (x=.0.005, 0.01, 0.015, and 0.02). The resultant samples were then characterized using FESEM, UV-VIS, four-point probe measurements to study its morphology, optical, and electrical properties. The transmission G-Au increase and its sheet resistant decrease as an increase of annealing temperature. Besides, the annealing treatment was then achieved of its microstructure which is expected may be used as a counter electrode in solar cell applications. The best DSSC devices with Quartz/FTO/ZnO Nanorods/Dye/G-Au50.01/Quartz structures have resulted in current-density, Voc, and solar cell performance of 0.1 mA/cm2, 0.42 V, and 0.01%, respectively.

Electrical characterization of TiO2/CH3NH3PbI3heterojunction solar cells

2014 ◽  
Vol 2 (26) ◽  
pp. 10244-10249 ◽  
Author(s):  
Wenqiang Liu ◽  
Yang Zhang
Keyword(s):  
Solar Cells ◽  
Electrical Properties ◽  
Electrical Characterization ◽  
Heterojunction Solar Cells

Electrical properties of TiO2/CH3NH3PbI3heterojunction solar cells.

Electrical characterization of all-layers-sprayed solar cell based on ZnO nanorods and extremely thin CIS absorber

Solar Energy ◽  
2013 ◽  
Vol 91 ◽  
pp. 48-58 ◽  
Author(s):  
Erki Kärber ◽  
Aimi Abass ◽  
Samira Khelifi ◽  
Marc Burgelman ◽  
Atanas Katerski ◽  
...  
Keyword(s):  
Solar Cell ◽  
Zno Nanorods ◽  
Electrical Characterization

The Test System Design of Multi-Junction Solar Cell Spectral Response

2013 ◽  
Vol 706-708 ◽  
pp. 1094-1098
Author(s):  
Fang Bai ◽  
Ke Yuan Cheng ◽  
Shan Li
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electrical Properties ◽  
Triple Junction ◽  
Spectral Response ◽  
Performance Testing ◽  
Demonstration Program ◽  
Excitation Light ◽  
Solar Cell Performance ◽  
Junction Solar Cell

The main topic is on doing research and testing methods and theories of the triple-junction solar cell and design its electrical performance test platform. Provide a theoretical basis and feasible experimental triple-junction solar cell performance testing. The electrical properties of the electrical properties of solar cells is the main consideration for its use as a power, a very important one is the spectral response curve of the test. Demonstration program and platform for the entire system, the P / N junction between the optical and electrical characteristics of multi-junction solar cells affect each other, related to the key issues, including: monochromatic excitation light source, optical bias, the theory and technology of electrical bias, weak signal detection. Important application prospects based multi-junction solar cells, its theoretical method and test device to become an important and innovative topic.

Different Solar Cell Performance under the Concentrator Conditions

2012 ◽  
Vol 455-456 ◽  
pp. 419-423
Author(s):  
Yuan Zhao ◽  
Ming Yu Sheng
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solar System ◽  
Light Intensity ◽  
High Efficiency ◽  
Electronic Devices ◽  
Model Parameters ◽  
Solar Cell Performance ◽  
Output Characteristics ◽  
The Relationship

The photoelectrical responsibility of single photo-electronic devices makes it difficult to achieve the high efficiency under light intensity range. The key to overcome limits is to develop the system consisting of a set of solar cells. In this work, we predict the model parameters under various conditions combination of three model parameters change with the relationship between light and temperature and then predict the value of the model parameters under various conditions and thus predict the components of the output characteristics under 0.5S UN--6.0 SUN. The results given in this work will provide a way to realize a high photo-electric conversion efficiency of the solar system in application.

scholarly journals Mechanical/Electrical Characterization of ZnO Nanomaterial Based on AFM/Nanomanipulator Embedded in SEM

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 248
Author(s):  
Mei Liu ◽  
Weilin Su ◽  
Xiangzheng Qin ◽  
Kai Cheng ◽  
Wei Ding ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Zno Nanorods ◽  
Schottky Contact ◽  
Electrical Characterization ◽  
Cost Effective ◽  
Atomic Force ◽  
Zno Nanomaterials ◽  
Operation Duration ◽  
Acceleration Voltage

ZnO nanomaterials have been widely used in micro/nano devices and structure due to special mechanical/electrical properties, and its characterization is still deficient and challenging. In this paper, ZnO nanomaterials, including nanorod and nanowire are characterized by atomic force microscope (AFM) and nanomanipulator embedded in scanning electron microscope (SEM) respectively, which can manipulate and observe simultaneously, and is efficient and cost effective. Surface morphology and mechanical properties were observed by AFM. Results showed that the average Young’s modulus of ZnO nanorods is 1.40 MPa and the average spring rate is 0.08 N/m. Electrical properties were characterized with nanomanipulator, which showed that the ZnO nanomaterial have cut-off characteristics and good schottky contact with the tungsten probes. A two-probe strategy was proposed for piezoelectric property measurement, which is easy to operate and adaptable to multiple nanomaterials. Experiments showed maximum voltage of a single ZnO nanowire is around 0.74 mV. Experiment criteria for ZnO manipulation and characterization were also studied, such as acceleration voltage, operation duration, sample preparation. Our work provides useful references for nanomaterial characterization and also theoretical basis for nanomaterials application.

Effect of the structure of cellulose acetate membranes on their permeability, electrical conductivity and rejection

1990 ◽  
Vol 55 (12) ◽  
pp. 2933-2939 ◽  
Author(s):  
Hans-Hartmut Schwarz ◽  
Vlastimil Kůdela ◽  
Klaus Richau
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Cellulose Acetate ◽  
Reverse Osmosis ◽  
Water Flux ◽  
Cellulose Acetate Membrane ◽  
Structure Parameters ◽  
Dc Electrical Conductivity ◽  
Cellulose Acetate Membranes

Ultrafiltration cellulose acetate membrane can be transformed by annealing into reverse osmosis membranes (RO type). Annealing brings about changes in structural properties of the membranes, accompanied by changes in their permeability behaviour and electrical properties. Correlations between structure parameters and electrochemical properties are shown for the temperature range 20-90 °C. Relations have been derived which explain the role played by the dc electrical conductivity in the characterization of rejection ability of the membranes in the reverse osmosis, i.e. rRO = (1 + exp (A-B))-1, where exp A and exp B are statistically significant correlation functions of electrical conductivity and salt permeation, or of electrical conductivity and water flux through the membrane, respectively.

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