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Journal of Nanomaterials
Volume 2014 (2014), Article ID 243041, 20 pages
http://dx.doi.org/10.1155/2014/243041
Review Article

Nanocomposite-Based Bulk Heterojunction Hybrid Solar Cells

1Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, Seoul National University, Seoul 151-744, Republic of Korea
2Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea

Received 30 August 2013; Accepted 20 November 2013; Published 8 January 2014

Academic Editor: Sung Jin Kim

Copyright © 2014 Bich Phuong Nguyen et al. 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

Photovoltaic devices based on nanocomposites composed of conjugated polymers and inorganic nanocrystals show promise for the fabrication of low-cost third-generation thin film photovoltaics. In theory, hybrid solar cells can combine the advantages of the two classes of materials to potentially provide high power conversion efficiencies of up to 10%; however, certain limitations on the current within a hybrid solar cell must be overcome. Current limitations arise from incompatibilities among the various intradevice interfaces and the uncontrolled aggregation of nanocrystals during the step in which the nanocrystals are mixed into the polymer matrix. Both effects can lead to charge transfer and transport inefficiencies. This paper highlights potential strategies for resolving these obstacles and presents an outlook on the future directions of this field.