期刊
AIP ADVANCES
卷 10, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0008802
关键词
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资金
- Jane & Aatos Erkko Foundation (Project ASPIRE)
- Vilho, Yrjo, and Kalle Vaisala foundation
- Academy of Finland [326000]
- Scientia Aboensis collaboration
- Academy of Finland (AKA) [326000, 326000] Funding Source: Academy of Finland (AKA)
In this work, we measure the hole mobility in the model polymer system poly(3-hexylthiophene-2,5-diyl) by using different measurement techniques. Our main purpose is to determine how the recently developed charge extraction by a linearly increasing voltage technique for metal-insulator-metal devices (MIM-CELIV) compares to other commonly used methods, such as space charge limited currents and time-of-flight. Our findings suggest that the MIM-CELIV technique gives a slightly lower mobility than the other techniques, which is understandable given that the method measures the mobility of relaxed charge carriers in the dark unlike, for example, time-of-flight where charge carriers are photogenerated. In addition, we scrutinize the accuracy and reliability of the techniques used, showing that differences in mobility smaller than a factor of two are not detectable unless statistics from many devices are available.
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