Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Solar cell manufacturing process examined with a view to increasing cell efficiency

04.04.2006


Electro-optical characterization of in-situ indium doped CdS thin films by chemical bath



As the world becomes increasingly aware of global warming and climate change, the need for alternative energy sources is generating greater demand. Electricity generated from solar cells is often quoted as being the solution to our climate problems. Unfortunately, this method of energy generation is quite inefficient. Overcoming this inefficiency is key to the widespread commercial acceptance of solar energy.

Recent years have seen Indium doped Cadmium Sulfide thin films gain importance as photovoltaic devices. Various techniques have been used to make the CdS:In thin films with chemical baths being most widely used. Due to this acceptance of the manufacturing method, it is important to develop an effective technique to n-dope CdS thin films during the growth process.


In this journal* article by Mexican researchers, J. A. Dávila-Pintle, R. Lozada-Morales, R. Palomino-Merino, B. Rebollo-Plata, C. Martínez-Hipatl, O. Portillo-Moreno, S. Jiménez-Sandoval and O. Zelaya-Ángel, from Benemérita Universidad Autónoma de Puebla and Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional looked to increase the carrier density and to reduce the electrical resistivity of the material - with no sensitive reduction of the forbidden energy band gap. In order to achieve this goal they employed the chemical bath in such a way as to analyse the doping method to determine the most effective dosage resulting in good physical properties useful for a wide field of applications.

The experimental results indicate a successful doping for low indium dosages, a saturation for intermediate doping levels, and a degradation of the doping process for high impurity. Furthermore, they were able to produce the CdS films more efficiently with electronic testing results indicating that this n-type doping process is suitable for producing CdS photovoltaic solar cells.

Dr. Ian Birkby | EurekAlert!
Further information:
http://www.azom.com/

More articles from Power and Electrical Engineering:

nachricht Improved stability of plastic light-emitting diodes
19.04.2018 | Max-Planck-Institut für Polymerforschung

nachricht Intelligent components for the power grid of the future
18.04.2018 | Christian-Albrechts-Universität zu Kiel

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

Im Focus: Like a wedge in a hinge

Researchers lay groundwork to tailor drugs for new targets in cancer therapy

In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...

Im Focus: The Future of Ultrafast Solid-State Physics

In an article that appears in the journal “Review of Modern Physics”, researchers at the Laboratory for Attosecond Physics (LAP) assess the current state of the field of ultrafast physics and consider its implications for future technologies.

Physicists can now control light in both time and space with hitherto unimagined precision. This is particularly true for the ability to generate ultrashort...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Diamond-like carbon is formed differently to what was believed -- machine learning enables development of new model

19.04.2018 | Materials Sciences

Electromagnetic wizardry: Wireless power transfer enhanced by backward signal

19.04.2018 | Physics and Astronomy

Ultrafast electron oscillation and dephasing monitored by attosecond light source

19.04.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>