Double wavelength ultraviolet light sensitive organic photodetector

Fei Yan; Huihui Liu; Wenlian Li; Bei Chu; Zisheng Su; Guang Zhang; Yiren Chen; Jianzhuo Zhu; Dongfang Yang; Junbo Wang
December 2009
Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p253308
Academic Journal
The authors demonstrate an organic ultraviolet (UV) photodetector (PD) device in which 1,3,5-tris(3-methylphenyl-phenylamino)-triphenyamine and 1,3,5-tris(N-phenylbenzimidazol-2-yl)-benzene were used as the electron donor and acceptor, respectively. The PD diode offers responses of 75.2 and 22.5 mA/W as the 365 and 330 nm UV light with 1.0 mW/cm2 intensities illuminate the PD diode through anode and cathode sides, respectively. It is interesting that only the planar heterojunction structure diode can provide the special response feature while bulk-heterojunction device could not do it. The working mechanism of the PD diode was also discussed in detail.


Related Articles

  • Interface engineering of high-Mg-content MgZnO/BeO/Si for p-n heterojunction solar-blind ultraviolet photodetectors. Liang, H. L.; Mei, Z. X.; Zhang, Q. H.; Gu, L.; Liang, S.; Hou, Y. N.; Ye, D. Q.; Gu, C. Z.; Yu, R. C.; Du, X. L. // Applied Physics Letters;5/30/2011, Vol. 98 Issue 22, p221902 

    High-quality wurtzite MgZnO film was deposited on Si(111) substrate via a delicate interface engineering using BeO, by which solar-blind ultraviolet photodetectors were fabricated on the n-MgZnO(0001)/p-Si(111) heterojunction. A thin Be layer was deposited on clean Si surface with subsequent in...

  • Ultrafast measurements of vibrational relaxation in the conjugated polymer poly(9,9-dioctylfluorene). Wells, Jon-Paul R.; Lidzey, David G.; Phillips, P. Jonathan; Carder, Damian A.; Fox, A. Mark // Applied Physics Letters;10/11/2004, Vol. 85 Issue 15, p3080 

    We report the resonant pump–probe measurements used to study the dynamics of molecular vibrations in the conjugated polymer poly(9,9-dioctlyfluorene) (PFO). Free-electron-laser excited, pump–probe measurements on a drop-cast polymer film yield the lifetime of a series of different...

  • Visible-blind ultraviolet sensitive photodiode with high responsivity and long term stability. Shuang-hong Wu; Wen-lian Li; Bei Chu; Lee, C. S.; Zi-sheng Su; Jun-bo Wang; Qing-jiang Ren; Zhi-zhi Hu; Zhi-qiang Zhang // Applied Physics Letters;7/12/2010, Vol. 97 Issue 2, p023306 

    A high responsivity organic visible-blind ultraviolet photodiode is achieved using aluminum (III) bis(2-methyl-8-quinolinato)4-phenylphenolate (BAlq) and 4,4′,4″-tri-(2-methylphenyl phenylamino) triphenylaine (m-MTDATA) as the electron acceptor and donor, respectively. Under 365 nm...

  • Influence of defects in n--GaN layer on the responsivity of Schottky barrier ultraviolet photodetectors. Zhao, D. G.; Jiang, D. S.; Zhu, J. J.; Liu, Z. S.; Zhang, S. M.; Liang, J. W.; Yang, Hui; Li, X.; Li, X. Y.; Gong, H. M. // Applied Physics Letters;2/5/2007, Vol. 90 Issue 6, p062106 

    The influence of defects on the responsivity of GaN Schottky barrier ultraviolet photodetectors with n--GaN/n+-GaN layer structures is investigated. It is found that employing undoped GaN instead of Si-doped GaN as the n--GaN layer brings about a higher responsivity due to a lower Ga vacancy...

  • Single-crystalline cubic MgZnO films and their application in deep-ultraviolet optoelectronic devices. Wang, L. K.; Ju, Z. G.; Zhang, J. Y.; Zheng, J.; Shen, D. Z.; Yao, B.; Zhao, D. X.; Zhang, Z. Z.; Li, B. H.; Shan, C. X. // Applied Physics Letters;9/28/2009, Vol. 95 Issue 13, p131113 

    By employing a relatively low growth temperature and oxygen-rich conditions, single-crystalline cubic MgZnO films were prepared. A solar-blind deep ultraviolet (DUV) photodetector was finished on the MgZnO film. The maximum responsivity of the photodetector is 396 mA/W at 10 V bias, which is...

  • A METHOD OF UV RADIANT FLUX MEASURING OF LP TUBULAR BACTERICIDAL LAMP. Vasilyak, Leonid M.; Drozdov, Leonid A.; Kostyuchenko, Sergei V.; Kudryavtsev, Nikolai N.; Sobur, Denis A.; Sokolov, Dmitry V.; Shunkov, Yuri E. // Light & Engineering;2011, Vol. 19 Issue 2, p81 

    When manufacturing bactericidal UV lamps, there is the task of current measurement of lamp flux in a set interval of wavelength. Today most of the world's largest manufacturers of UV mercury LP lamps use a flux measurement method in the 254 nm line based on the Keitz-formula. However, when...

  • Extreme-ultraviolet source based on the electron-cyclotron-resonance discharge. Vodopyanov, A. V.; Golubev, S. V.; Mansfeld, D. A.; Nikolaev, A. G.; Savkin, K. P.; Salashchenko, N. N.; Chkhalo, N. I.; Yushkov, G. Yu. // JETP Letters;Sep2008, Vol. 88 Issue 2, p95 

    An extreme-ultraviolet (EUV) source based on a low-pressure discharge sustained in a magnetic trap by the high-power millimeter-wave radiation under electron-cyclotron-resonance (ECR) conditions is discussed. Multiply charged ions are efficiently generated and excited in such a discharge (tin...

  • Coupled vertical microcavities. Kaliteevskii, M. A. // Technical Physics Letters;Feb97, Vol. 23 Issue 2, p120 

    A design is proposed for a device consisting of two optically coupled vertical microcavities. It is shown that interaction between two localized optical modes in the coupled microcavities induces mode splitting. The feasibility of using this design to develop optoelectronic devices is analyzed.

  • Development efforts target mass production. Anderson, Stephen G. // Laser Focus World;Oct2000, Vol. 36 Issue 10, p7 

    Reports that planar technology is only one approach to integrating optical devices and does not address other key manufacturing issues. Key to the mass production of some devices; Benefits from very large-scale integration.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics