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SCIENTIA SINICA Informationis, Volume 50 , Issue 11 : 1756(2020) https://doi.org/10.1360/SSI-2019-0138

Investigation of magneto-photoluminescence and magneto-photocurrent in rubrene-based blending devices

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  • ReceivedJun 27, 2019
  • AcceptedAug 14, 2019
  • PublishedOct 21, 2020

Abstract


Funded by

国家自然科学基金(11874305)

集成光电子学国家重点实验室课题(IOSKL2017KF19)

重庆市教委科学技术研究计划(KJQN201800510)


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  • Figure 1

    (Color online) (a) Schematic magnetic field effects featurecurves for ISC, STT and TQA. (b) The chemical structures of 3TPYMB andrubrene molecules; (c) the energy diagram of the 3TPYMB: $x$%rubrene devices(where $E_{D}$ represents the single state exciton energy of the donor, $E_{\rm~ex}$stands for charge transfer energy consisting of the donor HOMO and thereceptor LUMO); (d) the normalized PL spectra of the devices ($x$ = 30%50% 70%, the normalized PL and absorption spectra of rubrenefilm at room temperature

  • Figure 2

    (Color online) The temperature-dependent MPL and MPC curvesof 3TPYMB: $x$%rubrene devices ($x$= 70% 100% at zero bias voltage.(a) The MPL curves of 3TPYMB: 70%rubrene device; (b) the MPL curves ofpure rubrene device; (c) the MPC curves of 3TPYMB: 70%rubrene device; (d)the MPC curves of pure rubrene device

  • Figure 3

    (Color online) The evolutionary mechanism diagram for excitedstates in 3TPYMB: $x$%rubrene devices under the condition ofphoto-excitation

  • Figure 4

    (Color online) The temperature-dependent MPC curves ofblending devices with different concentration at zero bias voltage all ofcurves is appropriately shifted for clarify. (a) 3TPYMB: 70%rubrenedevice; (b) 3TPYMB: 50%rubrene device; (c) 3TPYMB: 30%rubrene device;(d) high/low-field effects of MPC curves varying with temperature in deviceswith different blending concentrations

  • Figure 5

    (Color online) The current/voltage-dependent MPL and MPCcurves of 3TPYMB: 70%rubrene device at room temperature. (a) The MPLcurves under the conditions of negative bias currents; (b) the MPL curvesunder the conditions of positive bias currents; (c) quantitative curve ofMPL$\vert_{\rm~300~mT}$ values with bias voltage; (d) the MPC curves underthe conditions of negative bias currents; (e) the MPC curves underthe conditions of positive bias current; (f) quantitative curves ofMPC$\vert_{\rm~300~mT}$ values with bias voltage