The application of SnS nanoparticles to bulk heterojunction solar cells

Tin mono-sulphide (SnS) nanoparticles were synthesized by a facile method. Reactions producing narrow size distribution SnS nanoparticles with the diameter of 5.0-10 nm were carried out in an ethylene glycol solution at 150 degrees C for 24 h. Bulk heterojunction solar cells with the structure of indium tin oxide (ITO)/polyethylenedioxythiophene polystyrenesulphonate (PEDOT PSS)/SnS polymer/Al were fabricated by blending the nanoparticles with a conjugated polymer to form the active layer for the first time. Current density-voltage characterization of the devices showed that due to the addition of SnS nanoparticles to the polymer film, the device performance can be dramatically improved, compared with that of the pristine polymer solar cells. (c) 2009 Published by Elsevier B.V.

National Natural Science Foundation of China 60736034 60576036National Basic Research Programme of China 2006CB202604 2006CB604904 National High Technology Research and Development Program of China 2006AA03Z408 This work is supported by the National Natural Science Foundation of China with the Contract Nos. 60736034 60576036 the National Basic Research Programme of China with the contract nos. 2006CB202604 and 2006CB604904 and the National High Technology Research and Development Program of China with the contract nos. 2006AA03Z408.