摘要
有机紫外光探测器应用前景广泛,与无机紫外光探测器相比具有制作简单、成本低、质量轻便于携带、可制成大面积器件或者柔性衬底等优点。有机小分子紫外光探测器活性界面结构主要分为平面异质节、体异质节和混合层平面异质节。按照不同异质节结构,综述了近年来有机小分子紫外光探测器的研究进展,以及不同结构的优缺点,并根据相关文献报道,对如何提高器件性能提出了相应的改进措施。
Compared to conventional inorganic ultraviolet photodetectors,organic ultraviolet photodetectors(OUV-PDs)have been widely used due to their advantages of low cost,light weight,flexibility and largearea device manufacturing.The structures of OUV-PDs mainly consist of planar heterojunctions,bulk heterojunctions and mixed-planar heterojunctions.The recent progress of different heterojunction structures based on organic small molecule and the advantages and disadvantages of different structures in OUV-PDs were reviewed.Some corresponding methods were proposed to improve the performance of OUV-PDs based on correlative literature.
引文
[1]YU G,PAKBAZ K,HEEGER A J.Semiconducting Polymer Diodes:Large Size,Low Cost Photodetectors with Excellent Visible-ultraviolet Sensitivity[J].Appl Phys Lett,1994,64(25):3 422-3 424.
[2]ZHANG G,LI W L,CHU B,et al.Highly Efficient Photovoltaic Diode Based Organic Ultraviolet Photodetector and the Strong Electroluminescence Resulting from Pure Exciplex Emission[J].Org Electron,2009,10(2):352-356.
[3]LIU C B,LIU M,CHE G B,et al.High Performance Organic Ultraviolet Photodetectors Based on Novel Phosphorescent Cu(I)Complexes[J].Solid-state Electron,2013,89:68-71.
[4]ARREDONDO B,DIOS C,VERGAZ R,et al.Performance of ITO-free Inverted Organic Bulk Heterojunction Photodetectors:Comparison with Standard Device Architecture[J].Org Electron,2013,14(10):2 484-2 490.
[5]WANG X,WANG H Y,HUANG W,et al.Realization of High Detectivity Organic Ultraviolet Photodetectors by Modifying Polymer Active Layer[J].Org Electron,2014,15(11):3 000-3 005.
[6]CARDENAS J R,VASCONCELOS E A,AZEVEDO W M,et al.A Conducting Polymer-silicon Heterojunction as a New Ultraviolet Photodetector[J].Appl Surf Sci,2008,255(3):688-690.
[7]LIN H W,KU S Y,SU H C,et al.Highly Efficient Visible-blind Organic Ultraviolet Photodetectors[J].Adv Mater,2005,17(20):2 489-2 493.
[8]刘春波,刘敏,张欣馨,等.有机紫外光探测器原理及其主要影响因素[J].化工进展,2013,32(1):42-47.
[9]KONG Z G,LI W L,CHE G B,et al.Highly Sensitive Organic Ultraviolet Optical Sensor Based on Phosphorescent Cu(I)Complex[J].Appl Phys Lett,2006,89(16):161 112.
[10]YAN F,LIU H H,LI W L,et al.Double Wavelength Ultraviolet Light Sensitive Organic Photodetector[J].Appl Phys Lett,2009,95(25):253 308.
[11]SU Z S,CHU B,LI W L.High Efficient Organic Ultraviolet Photovoltaic Devices Based on Gallium Complex[J].Solid-state Electron,2010,54:605-608.
[12]ZHU L,DAI Q,HU Z F,et al.High Response Organic Deep Ultraviolet Photodetector with PEDOT:PSS Anode[J].Opt Lett,2011,36(10):1 821-1 823.
[13]DAI Q,ZHU L,SUN J,et al.Organic Photodetectors Based on Transparent Electrodes for Application in Ultraviolet Light Detection[J].Sci China Technol Sc,2012,55(6):1 551-1 555.
[14]RAY D,NARASIMHAN K L.High Response Organic Visible-blind Ultraviolet Detector[J].Appl Phys Lett,2007,91(9):093 516.
[15]SU Z S,LI W L,CHU B,et al.High Response Organic Ultraviolet Photodetector Based on Blend of 4,4′,4″-Tri-(2-methylphenyl phenylamino)Triphenylaine and Tris-(8-hydroxyquinoline)Gallium[J].Appl Phys Lett,2008,93(10):103 309.
[16]WANG J B,LI W L,CHU B,et al.Visible-blind Ultraviolet Photo-detector Using Tris-(8-hydroxyquinoline)Rare Earth as Acceptors and the Effects of the Bulk and Interfacial Exciplex Emissions on the Photoresponsivity[J].Org Electron,2010,11(7):1 301-1 306.
[17]ZHU L,DAI Q,HU Z F,et al.Organic Deep Ultraviolet Photodetector with Response Peak Focusing on270nm Using the Acceptor BAlq[J].IEEE Photonic Tech L,2011.23(23):1 835-1 837.
[18]CUI Y C,LIU L H,LIU C B,et al.High Response Organic Ultraviolet Photodetector Based on Bis(2-methyl-8-quinolinato)-4-phenylphenolate Aluminum[J].Synth Met,2010,160(5-6):373-375.
[19]XU Z L,XU C H,WANG Q W,et al.Highly Efficient Organic Ultraviolet Photodetectors Based on a Cu(I)Complex[J].Synth Met,2010,160(21-22):2 260-2 264.
[20]LIU C B,LI C M,XU Y Y,et al.Visible-blind Organic Ultraviolet Photodetectors Based on[Cu(DPEphos)(bathocuproine)]BF4[J].Optoelectron Adv Mat,2011,5(4):353-355.
[21]SU B,LIU C B,CHE G B,et al.High Response Organic Ultraviolet Photodetector Based on a Novel Phosphorescent Cu(I)Complex[J].Optoelectron Adv Mat,2011,5(9):999-1002.
[22]LIU C B,WANG L,LIU M,et al.Highly Efficient Organic Ultraviolet Photodetectors Based on Re(I)Complexes[J].Chem Res Chinese U,2012,28(3):503-506.
[23]LIU C B,LIU L H,CHE G B,et al.High Response Organic Ultraviolet Photodetectors Based on 4,7-Diphenyl-1,10-phenanthroline[J].Sol Energy Mater Sol Cells,2012,96:29-32.