Ultrahigh Carrier Mobility Achieved in Photoresponsive Hybrid Perovskite Films via Coupling with Single-Walled Carbon Nanotubes

Li, Feng, Wang, Hong, Kufer, Dominik, Liang, Liangliang, Yu, Weili, Alarousu, Erkki, Ma, Chun, Li, Yangyang, Liu, Zhixiong, Liu, Changxu, Wei, Nini, Wang, Fei, Chen, Lang, Mohammed, Omar F., Fratalocchi, Andrea, Liu, Xiaogang, Konstantatos, Gerasimos and Wu, Tom (2017) Ultrahigh Carrier Mobility Achieved in Photoresponsive Hybrid Perovskite Films via Coupling with Single-Walled Carbon Nanotubes. Advanced Materials, 29 (16). p. 1602432. ISSN 0935-9648

Ultrahigh Carrier Mobility Achieved in Photo-responsive Hybrid Perovskite Films via Coupling with Single-Walled Carbon Nanotubes.pdf - Accepted Version

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Official URL: https://doi.org/10.1002/adma.201602432


Organolead trihalide perovskites have drawn substantial interest for photovoltaic and optoelectronic applications due to their remarkable physical properties and low processing cost. However, perovskite thin films suffer from low carrier mobility as a result of their structural imperfections such as grain boundaries and pinholes, limiting their device performance and application potential. Here we demonstrate a simple and straightforward synthetic strategy based on coupling perovskite films with embedded single-walled carbon nanotubes. We are able to significantly enhance the hole and electron mobilities of the perovskite film to record-high values of 595.3 and 108.7 cm2 V−1 s−1, respectively. Such a synergistic effect can be harnessed to construct ambipolar phototransistors with an ultrahigh detectivity of 3.7 × 1014 Jones and a responsivity of 1 × 104 A W−1, on a par with the best devices available to date. The perovskite/carbon nanotube hybrids should provide a platform that is highly desirable for fields as diverse as optoelectronics, solar energy conversion, and molecular sensing.

Item Type: Article
Additional Information: Research funded by King Abdullah University of Science and Technology, Ministerio de Economía y Competitividad (SEV-2015-0522), Fundacio Privade Cellex
Uncontrolled Keywords: phototransistors, photodetectors, perovskite, mobility, carbon nanotubes
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 14 Sep 2021 08:20
Last Modified: 14 Sep 2021 08:30
URI: http://nrl.northumbria.ac.uk/id/eprint/47171

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