Solar Cells & Photonics Research Laboratory

School of Chemistry
University of Hyderabad, Hyderabad, India

Fabrication of large-area PbSe films at the organic–aqueous interface and their near-infrared photoresponse

Authors: Manoj Kumar Jana, Banavoth Murali, SB Krupanidhi, Kanishka Biswas, Chintamani Nagesa Ramachandra Rao

Keywords: Interfacial reaction, PbSe, IR-photodetectors.

Year: 2014​​

Abstract: An organic–aqueous interfacial reaction at room temperature has been employed to synthesize large-area self-assembled films consisting of PbSe single crystallites. The use of the films for the low-cost fabrication of IR-photodetectors has been explored. (111)-oriented single crystallites of PbSe self-assemble to form robust large-area films. The near-infrared photoresponse of the film measured at room temperature showed large responsivity and gain owing to trap-associated mechanisms. Low-cost, mild reaction conditions and tunability of the nature of deposits make the present strategy useful for synthesizing large-area films of functional materials for possible opto-electronic applications.​​


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