Mg-doped C[sub 60] thin film as improved n-type organic semiconductor for a solar cell

Chikamatsu, Masayuka; Taima, Tetsuya; Yoshida, Yuji; Saito, Kazuhiro; Yase, Kiyoshi
January 2004
Applied Physics Letters;1/5/2004, Vol. 84 Issue 1, p127
Academic Journal
Mg doping effect on a [2-methoxy, 5-(2[sup ′]-ethylhexyloxy)-1,4-phenylene-vinylene] (MEH-PPV)/C[sub 60] bilayer solar cell has been investigated. We find that the Mg doping occurs during the deposition of the Mg top electrode onto the C[sub 60] film and that the solar cell property is markedly improved by the doping. The power conversion efficiency of the Mg-doped device under 100 mW/cm[sup 2] white light illumination is 0.54%, which is approximately 400 times larger than that of the nondoped device. © 2004 American Institute of Physics.


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