Molecules 2013, 18(3), 3107-3117; doi:10.3390/molecules18033107
Article

Solution-Processed Organic Photovoltaics Based on Indoline Dye Molecules Developed in Dye-Sensitized Solar Cells

Received: 4 January 2013; in revised form: 25 February 2013 / Accepted: 26 February 2013 / Published: 7 March 2013
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: A donor-acceptor (D-A) type indoline dye, D149, was used as an electron donor in solution-processed organic solar cells (OSCs). For bulk-heterojunction (BHJ) type OSCs with PC70BM as electron acceptor, the power conversion efficiency (PCE) is sensitive to the amount of D149 in the D149/PC70BM blend film. When the concentration of D149 in the blend film was as low as 5%, the highest PCE of up to 1.29%, together with a short-circuit current density (Jsc) of 4.58 mA·cm−2, an open-circuit voltage (Voc) of 0.90 V and a fill factor (FF) of 0.31, was achieved. In order to improve the PCE of D149-based OSCs, a bilayer-heterojunction configuration with C70 as electron acceptor has been employed. By optimizing the thickness of the D149 layer and varying the electron- and hole-transport layers, a highest PCE of up to 2.28% with a Jsc of 4.38 mA·cm−2, a Voc of 0.77 V, and an FF of 0.62 was achieved under AM 1.5G solar illumination (100 mW·cm−2).
Keywords: solution processed; indoline dye; organic solar cells; dye-sensitized solar cells
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MDPI and ACS Style

Liu, Z.; Ojima, H.; Hong, Z.; Kido, J.; Tian, W.; Wang, X.-F. Solution-Processed Organic Photovoltaics Based on Indoline Dye Molecules Developed in Dye-Sensitized Solar Cells. Molecules 2013, 18, 3107-3117.

AMA Style

Liu Z, Ojima H, Hong Z, Kido J, Tian W, Wang X-F. Solution-Processed Organic Photovoltaics Based on Indoline Dye Molecules Developed in Dye-Sensitized Solar Cells. Molecules. 2013; 18(3):3107-3117.

Chicago/Turabian Style

Liu, Zhaoyang; Ojima, Haruhiko; Hong, Ziruo; Kido, Junji; Tian, Wenjing; Wang, Xiao-Feng. 2013. "Solution-Processed Organic Photovoltaics Based on Indoline Dye Molecules Developed in Dye-Sensitized Solar Cells." Molecules 18, no. 3: 3107-3117.

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