[RpL 557] статья о фотодетекторе на основе графена

[Pashan]

Может кого заинтересует новая статья о фотодетекторе созданный на основе 
графена.

Статья вышла в зарубежном журнале Природа, в подразделе Nature 
Communications: 
http://www.nature.com/ncomms/journal/v4/n5/full/ncomms2830.html#access
Привожу введение авторов в сатью:
Graphene has attracted large interest in photonic applications owing to 
its promising optical properties, especially its ability to absorb light 
over a broad wavelength range, which has lead to several studies on pure 
monolayer graphene-based photodetectors. However, the maximum 
responsivity of these photodetectors is below 10 mA W−1, which 
significantly limits their potential for applications. Here we report 
high photoresponsivity (with high photoconductive gain) of 8.61 A W−1 in 
pure monolayer graphene photodetectors, about three orders of magnitude 
higher than those reported in the literature, by introducing electron 
trapping centres and by creating a bandgap in graphene through band 
structure engineering. In addition, broadband photoresponse with high 
photoresponsivity from the visible to the mid-infrared is experimentally 
demonstrated. To the best of our knowledge, this work demonstrates the 
broadest photoresponse with high photoresponsivity from pure monolayer 
graphene photodetectors, proving the potential of graphene as a 
promising material for efficient optoelectronic devices.

Со статьёй можно познакомиться на сайте журнала Природа Связей, а также 
по ссылке http://rplab.ru/~an/page5/downloads-3/ (имя - prfl; пароль - 
от базы данных по детекторам)

-- 
Sincerely,Pavel An.
Moscow State Pedagogical University
Radiophysics Science & Educational Centre
29 Malaya Pirogovskaya St.,Moscow, 119992 Russia
Tel: +7(499)246-8899/-1202
Fax: +7(499)246-6321