scholarly journals Industrial Silicon Wafer Solar Cells

2007 ◽  
Vol 2007 ◽  
pp. 1-15 ◽  
Author(s):  
Dirk-Holger Neuhaus ◽  
Adolf Münzer

In 2006, around 86% of all wafer-based silicon solar cells were produced using screen printing to form the silver front and aluminium rear contacts and chemical vapour deposition to grow silicon nitride as the antireflection coating onto the front surface. This paper reviews this dominant solar cell technology looking into state-of-the-art equipment and corresponding processes for each process step. The main efficiency losses of this type of solar cell are analyzed to demonstrate the future efficiency potential of this technology. In research and development, more various advanced solar cell concepts have demonstrated higher efficiencies. The question which arises is “why are new solar cell concepts not transferred into industrial production more frequently?”. We look into the requirements a new solar cell technology has to fulfill to have an advantage over the current approach. Finally, we give an overview of high-efficiency concepts which have already been transferred into industrial production.

Author(s):  
Satya Narayan Mourya ◽  
Pankaj Gupta ◽  
Skand Trivedi

The three dimensional photovoltaic cell is revolutionary silicon solar cell, design to maximize the conversion of sunlight into electricity. It is like container rather than plane conventional solar cell and has ‘High Efficiency Design to produce 200% of the Power Output of the Conventional Solar Cells’. Three dimensional solar has a special feature on the surface to capture more light in the morning and evening hours, as well as in the winter months when the sun is not directly overhead. Unlike conventional solar cells where electrical contact wires run on the top of the cell, blocking sunlight, three dimensional solar cell use a network of contact wires run below the light collector. Solar Tree is energy generating and harvesting tree, in order to increase efficiency “SPIRALLING PHYLLATAXY” technique is applied. It is way of mounting the three dimensional solar panel (leaf) on the top such a way that maximum sunlight incident on it. It can be applied in street lightening system, industrial power supply etc. It is much better than traditional photovoltaic solar system in area point of viewandalso more efficient. It is perfect solution for future energy needandFibonacci Sequence SolarTree is one of advance solar tree. After using three dimensional solar cell in solar tree, the investment payback period of solar panel systems is40%more than conventional solar panel systems.


2014 ◽  
Vol 22 (10) ◽  
pp. 1023-1029 ◽  
Author(s):  
Bart Vermang ◽  
Jörn Timo Wätjen ◽  
Viktor Fjällström ◽  
Fredrik Rostvall ◽  
Marika Edoff ◽  
...  

2015 ◽  
Vol 37 ◽  
pp. 434 ◽  
Author(s):  
Razagh Hafezi ◽  
Soroush Karimi ◽  
Sharie Jamalzae ◽  
Masoud Jabbari

“Micromorph” tandem solar cells consisting of a microcrystalline silicon bottom cell and an amorphous silicon top cell are considered as one of the most promising new thin-film silicon solar-cell concepts. Their promise lies in the hope of simultaneously achieving high conversion efficiencies at relatively low manufacturing costs. The concept was introduced by IMT Neuchâtel, based on the VHF-GD (very high frequency glow discharge) deposition method. The key element of the micromorph cell is the hydrogenated microcrystalline silicon bottom cell that opens new perspectives for low-temperature thin-film crystalline silicon technology. This paper describes the use, within p–i–n- and n–i–p-type solar cells, of hydrogenated amorphous silicon (a-Si:H) and hydrogenated microcrystalline silicon (_c-Si:H) thin films (layers), both deposited at low temperatures (200_C) by plasma-assisted chemical vapour deposition (PECVD), from a mixture of silane and hydrogen. Optical and electrical properties of the i-layers are described. Finally, present performances and future perspectives for a high efficiency ‘micromorph’ (mc-Si:Hya-Si:H) tandem solar cells are discussed.


2014 ◽  
Vol 4 (5) ◽  
pp. 1301-1305 ◽  
Author(s):  
Daniel J. Chmielewski ◽  
Tyler J. Grassman ◽  
Andrew M. Carlin ◽  
John A. Carlin ◽  
Austin J. Speelman ◽  
...  

2021 ◽  
Vol 2 (1) ◽  
pp. 10
Author(s):  
Rosdiana Afifah Rahman ◽  
Sudarti Sudarti

This article aims to analyze students' understanding of the purpose of solar cell technology. Because the role of students is very important in developing one of the renewable energies that is solar cells. There are still many people who have not seen other benefits from the sun, as well as ways to use solar energy for other processes, such as the use of solar cells in households and so on. Most of humans have not seen other ways and benefits of solar energy. So that to socialize the use of solar cell technology, students need to understand how important solar energy is as a renewable energy and how to use it. The method used in this study used quantitative descriptive, with the sample of 2019 class of physics education students.Keywords: Solar cell, Environment, Renewable.


2004 ◽  
Vol 97-98 ◽  
pp. 103-108
Author(s):  
Liudas Leonas ◽  
Stepas Janušonis

Relatively high cost of energy produced by solar cells prevents them from being used widely. One of the ways to address this problem is to create new, cost efficient solar cell production technologies. This presentation analyzes how, by applying self-formation principles it is possible to decrease number of photolithography processes used in high efficiency solar cell production, thus significantly reducing the cost of solar cell itself. All known planar technologies can be described based on self-formation principles; new microchip and integrated circuit technologies were created using self-formation as well. It is therefore natural to extend self-formation to solar cell technology. This presentation provides specific aspects of self-formation simulation as related to solar-cell technology. The object of the simulation is a cross-section of solar cell in two-dimensional Euclidean space and it.s evolution over time. Such kind of solar cell approximation simplifies the model, yet keeps all essential characteristics of the solar cell. The cross-section contains geometrical figures which approximate objects in the solar cell. Each figure is assigned with an integer parameter, approximating physical material. According to self-formation principles, evolution of each figure depends only on geometrical configuration of the figure itself, the parameter and interaction rules. Interaction rules define change of neighbouring points and approximate technological processes (etching, oxidation, coating etc). Combination of such processes enables construction of required solar cell configuration, with only minimum use of photolithography processes. Self-formation is simulated by two-dimensional 8-neighbour cellular automata based mechanism.


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