The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dalam filem terdeposit vakum yang terdiri daripada molekul kutub organik, cas polarisasi muncul pada permukaan filem disebabkan oleh orientasi spontan molekul. Kerana ketumpatannya (σtiang) menentukan jumlah caj terkumpul (σacc) dalam diod pemancar cahaya organik dan kuasa keluaran dalam penjana tenaga getaran berasaskan molekul kutub (VEG), kawalan orientasi molekul amat diperlukan. Baru-baru ini, beberapa kumpulan telah melaporkan bahawa interaksi dipol-dipol antara molekul polar mendorong orientasi anti-selari yang tidak menyumbang kepada σtiang. Dalam erti kata lain, gangguan yang mendorong pengecilan interaksi dipol diperlukan untuk meningkatkan σtiang. Dalam kajian ini, untuk menyiasat kesan penyinaran cahaya ke atas σtiang, kami menyediakan filem 1,3,5-tris(1-fenil-1H-benzimidazol-2-yl)benzena (TPBi) di bawah pencahayaan semasa pemendapannya, dan menilai σacc dalam peranti dwilapisan berasaskan TPBi, yang sama dengan σtiang. Kami mendapati bahawa σacc telah meningkat dengan penyinaran cahaya, menunjukkan bahawa orientasi purata TPBi dipertingkatkan. Keputusan ini menunjukkan bahawa penyinaran cahaya semasa fabrikasi peranti adalah proses yang menjanjikan untuk peranti elektronik organik termasuk VEG berasaskan molekul polar.
Yuya TANAKA
Chiba University,PRESTO
Yuki TAZO
Chiba University
Hisao ISHII
Chiba University
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Salinan
Yuya TANAKA, Yuki TAZO, Hisao ISHII, "Enhanced Orientation of 1,3,5-Tris(1-Phenyl-1H-Benzimidazole-2-yl)Benzene by Light Irradiation during Its Deposition Evaluated by Displacement Current Measurement" in IEICE TRANSACTIONS on Electronics,
vol. E104-C, no. 6, pp. 176-179, June 2021, doi: 10.1587/transele.2020OMS0009.
Abstract: In vacuum-deposited film composed of organic polar molecules, polarization charges appear on the film surface owing to spontaneous orientation of the molecule. Because its density (σpol) determines an amount of accumulation charge (σacc) in organic light-emitting diodes and output power in polar molecular-based vibrational energy generators (VEGs), control of molecular orientation is highly required. Recently, several groups have reported that dipole-dipole interaction between polar molecules induces anti-parallel orientation which does not contribute to σpol. In other words, perturbation inducing the attenuation of the dipole interaction is needed to enhance σpol. In this study, to investigate an effect of light irradiation on σpol, we prepared 1,3,5-tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) film under illumination during its deposition, and evaluated the σacc in TPBi-based bilayer device, which equals to σpol. We found that the σacc was increased by light irradiation, indicating that average orientation of TPBi is enhanced. These results suggest that light irradiation during device fabrication is promising process for organic electronic devices including polar molecule-based VEGs.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2020OMS0009/_p
Salinan
@ARTICLE{e104-c_6_176,
author={Yuya TANAKA, Yuki TAZO, Hisao ISHII, },
journal={IEICE TRANSACTIONS on Electronics},
title={Enhanced Orientation of 1,3,5-Tris(1-Phenyl-1H-Benzimidazole-2-yl)Benzene by Light Irradiation during Its Deposition Evaluated by Displacement Current Measurement},
year={2021},
volume={E104-C},
number={6},
pages={176-179},
abstract={In vacuum-deposited film composed of organic polar molecules, polarization charges appear on the film surface owing to spontaneous orientation of the molecule. Because its density (σpol) determines an amount of accumulation charge (σacc) in organic light-emitting diodes and output power in polar molecular-based vibrational energy generators (VEGs), control of molecular orientation is highly required. Recently, several groups have reported that dipole-dipole interaction between polar molecules induces anti-parallel orientation which does not contribute to σpol. In other words, perturbation inducing the attenuation of the dipole interaction is needed to enhance σpol. In this study, to investigate an effect of light irradiation on σpol, we prepared 1,3,5-tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) film under illumination during its deposition, and evaluated the σacc in TPBi-based bilayer device, which equals to σpol. We found that the σacc was increased by light irradiation, indicating that average orientation of TPBi is enhanced. These results suggest that light irradiation during device fabrication is promising process for organic electronic devices including polar molecule-based VEGs.},
keywords={},
doi={10.1587/transele.2020OMS0009},
ISSN={1745-1353},
month={June},}
Salinan
TY - JOUR
TI - Enhanced Orientation of 1,3,5-Tris(1-Phenyl-1H-Benzimidazole-2-yl)Benzene by Light Irradiation during Its Deposition Evaluated by Displacement Current Measurement
T2 - IEICE TRANSACTIONS on Electronics
SP - 176
EP - 179
AU - Yuya TANAKA
AU - Yuki TAZO
AU - Hisao ISHII
PY - 2021
DO - 10.1587/transele.2020OMS0009
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E104-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2021
AB - In vacuum-deposited film composed of organic polar molecules, polarization charges appear on the film surface owing to spontaneous orientation of the molecule. Because its density (σpol) determines an amount of accumulation charge (σacc) in organic light-emitting diodes and output power in polar molecular-based vibrational energy generators (VEGs), control of molecular orientation is highly required. Recently, several groups have reported that dipole-dipole interaction between polar molecules induces anti-parallel orientation which does not contribute to σpol. In other words, perturbation inducing the attenuation of the dipole interaction is needed to enhance σpol. In this study, to investigate an effect of light irradiation on σpol, we prepared 1,3,5-tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) film under illumination during its deposition, and evaluated the σacc in TPBi-based bilayer device, which equals to σpol. We found that the σacc was increased by light irradiation, indicating that average orientation of TPBi is enhanced. These results suggest that light irradiation during device fabrication is promising process for organic electronic devices including polar molecule-based VEGs.
ER -