Sensors 2010, 10(7), 6488-6496; doi:10.3390/s100706488
Article

Semiconducting Polymer Photodetectors with Electron and Hole Blocking Layers: High Detectivity in the Near-Infrared

Xiong Gong 1,* email, Ming-Hong Tong 1 email, Sung Heum Park 1 email, Michelle Liu 2 email, Alex Jen 2 email and Alan J. Heeger 1,* email
1 Center for Polymers and Organic Solids, University of California Santa Barbara, Santa Barbara, CA 93106-5090, USA 2 Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195-4330, USA
* Authors to whom correspondence should be addressed.
Received: 22 April 2010; in revised form: 11 May 2010 / Accepted: 30 June 2010 / Published: 1 July 2010
(This article belongs to the Special Issue Photodetectors and Imaging Technologies)
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Abstract: Sensing from the ultraviolet-visible to the infrared is critical for a variety of industrial and scientific applications. Photodetectors with broad spectral response, from 300 nm to 1,100 nm, were fabricated using a narrow-band gap semiconducting polymer blended with a fullerene derivative. By using both an electron-blocking layer and a hole-blocking layer, the polymer photodetectors, operating at room temperature, exhibited calculated detectivities greater than 1013 cm Hz1/2/W over entire spectral range with linear dynamic range approximately 130 dB. The performance is comparable to or even better than Si photodetectors.
Keywords: semiconducting polymer; photodetectors; blocking layers; detectivity

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Cite This Article

MDPI and ACS Style

Gong, X.; Tong, M.-H.; Park, S.H.; Liu, M.; Jen, A.; Heeger, A.J. Semiconducting Polymer Photodetectors with Electron and Hole Blocking Layers: High Detectivity in the Near-Infrared. Sensors 2010, 10, 6488-6496.

AMA Style

Gong X, Tong M-H, Park SH, Liu M, Jen A, Heeger AJ. Semiconducting Polymer Photodetectors with Electron and Hole Blocking Layers: High Detectivity in the Near-Infrared. Sensors. 2010; 10(7):6488-6496.

Chicago/Turabian Style

Gong, Xiong; Tong, Ming-Hong; Park, Sung Heum; Liu, Michelle; Jen, Alex; Heeger, Alan J. 2010. "Semiconducting Polymer Photodetectors with Electron and Hole Blocking Layers: High Detectivity in the Near-Infrared." Sensors 10, no. 7: 6488-6496.

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