Abstract
In this paper two different methods, doctor blade of a paste and glancing angle deposition (GLAD), have been used to fabricate layers of titanium dioxide for use in organic solar cells. Doctor blade TiO 2 consists of a random network of nanocrystals with an average pore size of about 9 - 10nm. Controlled nanometre-scale columnar structures of TiO 2 with column spacing between 50 and 100nm were obtained using the GLAD process. Solar cell based on GLAD films gave performances inferior to doctor blade TiO 2 devices. The optical property of the TiO 2 has been identified as a possible influential factor limiting the solar cell efficiency of GLAD-based devices.
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