Solar cells heteroj unction

Semiconductor Aspects of Organic Bulk Heteroj unction Solar Cells... 

For bulk heteroj unction solar cells made from MDMO-PPV/PCBM, measured under metal halogenide lamps, a mismatch factor of M 0.76 has been determined, while for xenon high-pressure lamps, M rs 0.9 is used. 

The first report of a CuInSe2/CdS heteroj unction solar cell-based on single-crystal CulnSe2-appeared in 1974 [72]. The cell achieved an efficiency of 5%. In 1983 the first electrochemical approach to produce a polycrystalline thin film of CuInSe2 was reported by Bhattacharya [73] in which Cu, In, and Se were deposited simultaneously from an acidic solution. Other approaches to the synthesis of polycrystalline CuIn(S,Se)2 thin films appeared quickly after the first report for example, Hodes et al. annealed an electrodeposited Cu-In alloy [74], Kapur et al. annealed stacked Cu-In layers [75], and Bhattacharya et al. annealed In-Se Cu-Se stacks [28]. The EDA routes which currently produce the most efHcient CuIn(S,Se)2 solar cells involve co-deposition of all of the constituent elements [76] followed by annealing in a sulfur atmosphere, and the electrodeposition of a Cu-In alloy with a small amount of Se, again followed by annealing in sulfur [34]. Both routes produce devices with around 11% power conversion efficiency. 

W. Ergang, et al. High-performance polymer heteroj unction solar cells of a polysilafluorene derivative. Applied Physics Letters, 2008. 92(3) p. 033307. 

Dennler G, Scharber MC, Brabec CJ. Polymer-fiiUerene bulk-heteroj unction solar cells. Adv Mat 2009 21 1323-1338. 

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