Rui
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| Name: |
solar cell |
| Category: |
General |
| Status: |
Member |
| Description: |
With the decline in the world's natural resources, the need for new and cheaper energy sources is evolving. One such source is the sun which generates heat and light which can be harnessed and used to our advantage.
There are explanations of the principles behind this technology, the engineering required to produce these products and the future possibilities offered by this technology.
The chemistry and physics of the cells (both organic and inorganic) are clarified as well as production methods, with information how this can then be applied to the nanoscale as well.
A complete guide to this new and exciting way of producing energy which will be invaluable to a variety of people from material scientists, chemists, electrical engineers, to management consultants and politicians.
Mesoscopic solar cells
These new solar cells employ films composed of an interpenetrating network of
inorganic or organic semiconductor particles of mesoscopic (2–50 nm) size
forming junctions of very high contact area instead of the flat morphology used
by conventional thin-film cells. They are commonly referred to as ‘bulk’
junction cells due to their three-dimensional structure. The prototype of this
family of devices is the dye-sensitized solar cell (DSC), which accomplishes
optical absorption and charge separation by combining a light-absorbing
material (the sensitizer) with a wide band gap semiconductor of nanocrystalline
morphology (O’Regan & Graetzel 1991; Keshner & Arya, 2004). The DSC is
used in conjunction with electrolytes (Graetzel 2001), ionic liquids (Wang
2005a), polymer electrolytes (Haque et al. 2003) or organic (Bach et al. 1998) as
well as inorganic hole conductors (O’Regan 1997; Perera et al. 2003). Other
strategies employ blends of organic materials, such as polymeric (Halls et al.
1995) or molecular semiconductors (Peumans & Forrest 2001) as well as hybrid
cells using a p-type semiconducting polymer (such as poly 3-hexylthiophene),
in conjunction with a fullerene (Brabec et al. 2003) or CdSe ‘nanorods’
(Huynh et al. 2002).
These new dye-sensitized solar cells may be fabricated without expensive
and energy-intensive high temperature and high vacuum processes. They are
compatible with various supporting materials and can be produced in a variety
of presentations and appearances to enter markets for domestic devices and
architectural or decorative applications. The DSC conversion efficiency validated
at STC is currently 11.1% (Chiba et al. 2006). Excellent stability under
long-term illumination and high temperatures has been reached fostering
industrial applications.
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| Name: |
Computational Electromagnetics |
| Category: |
General |
| Status: |
Member |
| Description: |
The numerical simulations for electromagnetics including low-frequency, mid-frequency, high-frequency, and quantum world. |
| Name: |
Quantum Optics |
| Category: |
General |
| Status: |
Member |
| Description: |
This group is interested in the cross-subject which includes "Quantum Optics, Quantum Computation and Quantum Information, Atomic and Molecular Physics". |
| Name: |
Scholarly Writing and Editing Group |
| Category: |
General |
| Status: |
Member |
| Description: |
Activity in this group is supported by EDITAGE (Editage is a scholarly English-language editing service; www.editage.cn, Chinese; www.editage.com, English) and is intended to forge a community that is interested in information and resources related to the writing and editing of scholarly materials.
Group members are asked to share links, documents, and resources that are directed at helping authors be successful in the peer review process of scholarly publication in the English language. Only logged-in members have full access to the multiple posts within the forum.
Click on "Forum" to view the postings.
Feel free to request to join the group and contribute to the forum, or send your thoughts and questions to me by sending me a message and I will address them.
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