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The Pros And Cons Of Organic Chemistry

964 Words4 Pages

For the last 5 decades, electronics coupled with organic chemistry has been an area of great research interest, especially in physics and chemistry. Until a few years ago, this topic was thought to have no practical approach and was believed to be just research-oriented. Modification of chemical structures so that they can in a way enhance the properties of these when used for electronic applications- especially as a thin film has gained major impetus. It was always thought that organics would soon replace the semiconductors in the near future; given that they could perform the same functions and applications as the semiconductors. However, their stability and efficiency posed a great problem then. But a revolution in the mid 1980s provided strong counter argument against this. The demonstration of a low voltage and efficient thin film LED seemed to pave the way for this revolutionary idea. Although the demonstration by Ching …show more content…

It has the distinction of being the lone photovoltaic device making use of molecular photon absorption and its conversion into charges. It is special because it doesn’t require intermolecular transportation of the excited electrons. Traditional solar cells have both light harvesting and charge transport occurring simultaneously. However, in case of DSC these are not together. This leads to certain limitations upon the properties of the semiconductor to be used. The band-gap and mobility of charge carriers as well as recombination time of photogenerated charges pose reduce the vastly available semiconductors that can act as efficient photovoltaic converters, to just a few. This problem however doesn’t gain much impetus when it comes to separate light absorption and charge carrier transport. For such types, he options available for the absorber material are

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The abundant of esters, which serves as the electron withdrawal group, propels the effectiveness of this reaction. In the present case, the central ring of the anthracene possesses the characteristic properties of a diene, electron-rich, system [1]. Thus, this aromatic compound reacts with the 9 and 10 positions of the maleic anhydride dienophile, electron-poor, by 4 +2 cycloaddition [1]. 9 and 10 are the position of preference because it is where new bonds can be made without destroying the aromatic formation of the other two rings. This reaction results in a six-membered ring bridged on the 9 and 10 positions of anthracene.

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923 Words | 4 Pages

UPDATE TO PRESENT Lightwave Technology made profit from a part of illumination market worth $79 million. LED products constituted $2.3 billion of this. From 1997, capturing the strategic opportunities has led Lightwave Technology Inc. achieve success. The market conditions have been extremely favorable and has shown a tremendous growth of 500 percent in less than half a decade. The change in the usage of LEDs has also impacted a lot to the growth of the company.

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Summary Of Are Organic Food Starts To Prove Its Worth

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