IEICE TRANSACTIONS on Electronics
Vapor Deposition Polymerization and Electrical Characterization of TPD Thin Films
Summary :
Thin films of a divinyl derivative of tetraphenyldiaminobiphenyl DvTPD were prepared by vapor deposition followed by annealing. After annealing at 200°C for 1 h, the film became practically insoluble to organic solvents due to polymerization. Electrical characteristics of the films were measured by current-voltage measurement, time-of-flight measurement, and dielectric measurement. It was found that the hole mobility of DvTPD decreases when the film is polymerized. As a consequence of the decrease of hole mobility, carrier balance in the emissive layer of an organic light emitting diode (OLED) was improved, leading to a higher quantum efficiency and a pure emission spectrum. The dielectric measurement also confirmed the high thermal stability of the polymerized film.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E94-C No.2 pp.157-163
- Publication Date
- 2011/02/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E94.C.157
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Progress in Molecular and Organic Devices)
- Category
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Masakazu MUROYAMA, Ayako TAJIRI, Kyoko ICHIDA, Seiji YOKOKURA, Kuniaki TANAKA, Eiji OTSUKI, Hiroaki USUI, "Vapor Deposition Polymerization and Electrical Characterization of TPD Thin Films" in IEICE TRANSACTIONS on Electronics,
vol. E94-C, no. 2, pp. 157-163, February 2011, doi: 10.1587/transele.E94.C.157.
Abstract: Thin films of a divinyl derivative of tetraphenyldiaminobiphenyl DvTPD were prepared by vapor deposition followed by annealing. After annealing at 200°C for 1 h, the film became practically insoluble to organic solvents due to polymerization. Electrical characteristics of the films were measured by current-voltage measurement, time-of-flight measurement, and dielectric measurement. It was found that the hole mobility of DvTPD decreases when the film is polymerized. As a consequence of the decrease of hole mobility, carrier balance in the emissive layer of an organic light emitting diode (OLED) was improved, leading to a higher quantum efficiency and a pure emission spectrum. The dielectric measurement also confirmed the high thermal stability of the polymerized film.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E94.C.157/_p
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@ARTICLE{e94-c_2_157,
author={Masakazu MUROYAMA, Ayako TAJIRI, Kyoko ICHIDA, Seiji YOKOKURA, Kuniaki TANAKA, Eiji OTSUKI, Hiroaki USUI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Vapor Deposition Polymerization and Electrical Characterization of TPD Thin Films},
year={2011},
volume={E94-C},
number={2},
pages={157-163},
abstract={Thin films of a divinyl derivative of tetraphenyldiaminobiphenyl DvTPD were prepared by vapor deposition followed by annealing. After annealing at 200°C for 1 h, the film became practically insoluble to organic solvents due to polymerization. Electrical characteristics of the films were measured by current-voltage measurement, time-of-flight measurement, and dielectric measurement. It was found that the hole mobility of DvTPD decreases when the film is polymerized. As a consequence of the decrease of hole mobility, carrier balance in the emissive layer of an organic light emitting diode (OLED) was improved, leading to a higher quantum efficiency and a pure emission spectrum. The dielectric measurement also confirmed the high thermal stability of the polymerized film.},
keywords={},
doi={10.1587/transele.E94.C.157},
ISSN={1745-1353},
month={February},}
Copy
TY - JOUR
TI - Vapor Deposition Polymerization and Electrical Characterization of TPD Thin Films
T2 - IEICE TRANSACTIONS on Electronics
SP - 157
EP - 163
AU - Masakazu MUROYAMA
AU - Ayako TAJIRI
AU - Kyoko ICHIDA
AU - Seiji YOKOKURA
AU - Kuniaki TANAKA
AU - Eiji OTSUKI
AU - Hiroaki USUI
PY - 2011
DO - 10.1587/transele.E94.C.157
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E94-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2011
AB - Thin films of a divinyl derivative of tetraphenyldiaminobiphenyl DvTPD were prepared by vapor deposition followed by annealing. After annealing at 200°C for 1 h, the film became practically insoluble to organic solvents due to polymerization. Electrical characteristics of the films were measured by current-voltage measurement, time-of-flight measurement, and dielectric measurement. It was found that the hole mobility of DvTPD decreases when the film is polymerized. As a consequence of the decrease of hole mobility, carrier balance in the emissive layer of an organic light emitting diode (OLED) was improved, leading to a higher quantum efficiency and a pure emission spectrum. The dielectric measurement also confirmed the high thermal stability of the polymerized film.
ER -
English
