The studying of solar cell process by using optoelectronic measurement system

2013 ◽  
Author(s):  
Hongfang Wang ◽  
Fang Lang ◽  
Jinchao Shi ◽  
Gaofei Li ◽  
Zhiyan Hu ◽  
...  
Keyword(s):  
Solar Cell ◽  
Measurement System ◽  
Cell Process ◽  
Optoelectronic Measurement

scholarly journals Excellent Average Diffusion Lengths of 600 μm of N-Type Multicrystalline Silicon Wafers After the Full Solar Cell Process Including Boron Diffusion

2013 ◽  
Vol 33 ◽  
pp. 41-49 ◽  
Author(s):  
Bernhard Michl ◽  
Jan Benick ◽  
Armin Richter ◽  
Martin Bivour ◽  
Jeannie Yong ◽  
...  
Keyword(s):  
Solar Cell ◽  
Silicon Wafers ◽  
Multicrystalline Silicon ◽  
Cell Process ◽  
Boron Diffusion ◽  
Average Diffusion

Optoelectronic Measurement System for a High-Temperature Dilatometer

2016 ◽  
Vol 58 (12) ◽  
pp. 1347-1353 ◽  
Author(s):  
I. G. Bronshtein ◽  
F. M. Inochkin ◽  
S. K. Kruglov ◽  
T. A. Kompan ◽  
S. V. Kondrat’ev ◽  
...  
Keyword(s):  
High Temperature ◽  
Measurement System ◽  
Optoelectronic Measurement

scholarly journals Multi-Channel Optoelectronic Measurement System for Soil Nutrients Analysis

Electronics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 451 ◽  
Author(s):  
Liuzheng Ma ◽  
Zhenfeng Li ◽  
Zephania Birech ◽  
Shixin Li ◽  
Yatao Yang ◽  
...  
Keyword(s):  
Measurement System ◽  
Detection Efficiency ◽  
Liquid Crystal Display ◽  
Soil Samples ◽  
Experimental Results ◽  
Circuit Board ◽  
Light Sources ◽  
Relative Standard ◽  
Compensation Concentration ◽  
Optoelectronic Measurement

To solve the problems that occur when farmers overuse chemical fertilizers, it is necessary to develop rapid and efficient portable measurement systems for the detection and quantification of nitrogen (N), phosphorus (P), and potassium (K) in soil. Challenges arise from the use of currently available portable instruments which only have a few channels, namely measurement and the reference channels. We report on a home-built, multichannel, optoelectronic measurement system with automatically switching light sources for the detection of N, P, K content in soil samples. This optoelectronic measurement system consists of joint LED light sources with peak emission wavelengths of 405 nm, 660 nm, and 515 nm, a photodiode array, a circuit board with a microcontroller unit (MCU), and a liquid-crystal display (LCD) touch screen. The straightforward principle for rapid detection of the extractable nutrients (N, P, K) was well-established, and characterization of the designed measurement system was done. Using this multi-channel measurement system, available nutrients extracted from six soil samples could be measured simultaneously. The absorbance compensation, concentration calibration, and nutrition measurements were performed automatically to achieve high consistency across six channels. The experimental results showed that the cumulative relative standard deviations of 1.22%, 1.27%, and 1.00% were obtained from six channels with known concentrations of standard solutions, respectively. The coefficients of correlation for the detection of extracted nutrients of N, P, K content in soil samples using both the proposed method and conventional lab-based method were 0.9010, 0.9471, and 0.8923, respectively. Experimental results show that this optoelectronic measurement system can perform the measurement of N, P, K contents of six soil samples simultaneously and may be used as an actual tool in determining nutrients in soil samples with an improvement in detection efficiency.

High temperature annealing of sprayed SnO2: F layers in a silicon solar cell process with screen-printed contacts

2006 ◽  
Vol 90 (12) ◽  
pp. 1797-1814 ◽  
Author(s):  
R. Tala-Ighil ◽  
M. Boumaour ◽  
M.S. Belkaïd ◽  
A. Maallemi ◽  
K. Melhani ◽  
...  
Keyword(s):  
Solar Cell ◽  
High Temperature ◽  
Silicon Solar Cell ◽  
Cell Process ◽  
High Temperature Annealing ◽  
Screen Printed

Simplified buried contact solar cell process

1996 ◽  
Author(s):  
S.R. Wenham ◽  
C.B. Honsberg ◽  
S. Edmiston ◽  
L. Koschier ◽  
A. Fung ◽  
...  
Keyword(s):  
Solar Cell ◽  
Cell Process

scholarly journals Impact of a p-type Solar Cell Process on the Electrical Quality of Czochralski Silicon

2013 ◽  
Vol 38 ◽  
pp. 589-596 ◽  
Author(s):  
Kevin Lauer ◽  
Christian Möller ◽  
Kristin Neckermann ◽  
Michael Blech ◽  
Martin Herms ◽  
...  
Keyword(s):  
Solar Cell ◽  
Cell Process ◽  
Czochralski Silicon ◽  
P Type
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