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Highly efficient organic UV photodetectors that are not sensitive to visible radiation (“visible-blind”) but to UV-A radiation are fabricated using an organic donor–acceptor couple. High external quantum efficiencies (EQEs) comparable to commercial GaN devices, but covering the entire UV-A range (see Figure), make these devices promising for environmental and biomedical UV-sensing applications. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂089/2005/c1622ₛ. pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Lin et al. (Tue,) studied this question.