کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
79461 | 49358 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: High response organic ultraviolet photodetectors based on 4,7-diphenyl-1,10-phenanthroline High response organic ultraviolet photodetectors based on 4,7-diphenyl-1,10-phenanthroline](/preview/png/79461.png)
We demonstrate high response organic ultraviolet photodetectors utilizing 1,3,5-tris(3-methylphenyl-phenylamino)-triphenylamine (m-MTDATA) and 4,7-diphenyl-1,10-phenanthroline (BPhen), which act as electron donor (D) and acceptor (A), respectively. The optimized device exhibits a peak photocurrent of 2.46 mA/cm2 at −12 V under an illumination of 365 nm ultraviolet light irradiation with an intensity of 2.82 mW/cm2, corresponding to a response of 872 mA/W. The high response is attributed to large energy offset, efficient electron transfer from m-MTDATA to BPhen and high charge carrier mobilities of D and A.
Research highlights
► In this study ,we demonstrate high response organic ultraviolet photodetectors.
► m-MTDATA and BPhen are utilized as donor and acceptor in ultraviolet photodetectors.
► The optimized photodetector achieves a peak responsivity as high as 872 mA/W.
► The reasons for such high photoresponse are discussed.
Journal: Solar Energy Materials and Solar Cells - Volume 96, January 2012, Pages 29–32