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Final Thesis_Ting You Li.docx.pdf
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Final thesis
Type
ThesisAuthors
Li, Ting-You
Advisors
He, Jr-Hau
Committee members
Ooi, Boon S.
Li, Lain-Jong

Lau, Shu Ping
Date
2016-04Embargo End Date
2017-05-12Permanent link to this record
http://hdl.handle.net/10754/609147
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At the time of archiving, the student author of this thesis opted to temporarily restrict access to it. The full text of this thesis became available to the public after the expiration of the embargo on 2017-05-12.Abstract
Organic-inorganic hybrid perovskites (OIHPs), which are promising materials for electronic and optoelectronic applications (1-10), have made into layered organic-inorganic hybrid perovskites (LOIHPs). These LOIHPs have been applied to thin-film transistors, solar cells and tunable wavelength phosphors (11-18). It is known that devices fabricated with single crystal exhibit the superior performance, which makes the growth of large-sized single crystals critical for future device applications (19-23). However, the difficulty in growing large-sized LOIHPs single crystal with superior electrical properties limits their practical applications. Here, we report a method to grow the centimeter-scaled LOIHP single crystal of [(HOC2H4NH3)2PbI4], demonstrating the potentials in mass production. After that, we reveal anisotropic electrical and optoelectronic properties which proved the carrier propagating along inorganic framework. The carrier mobility of in-inorganic-plane (in-plane) devices shows the average value of 45 cm2 V–1 s–1 which is about 100 times greater than the record of LOIHP devices (15), showing the importance of single crystal in device application. Moreover, the LOIHP single crystals show its ultra-short carrier lifetime of 42.7 ps and photoluminescence quantum efficiency (PLQE) of 25.4 %. We expect this report to be a start of LOIHPs for advanced applications in which the anisotropic properties are needed (24-25), and meets the demand of high-speed applications and fast-response applications.Citation
Li, T.-Y. (2016). Electrically Anisotropic Layered Perovskite Single Crystal. KAUST Research Repository. https://doi.org/10.25781/KAUST-78WF9ae974a485f413a2113503eed53cd6c53
10.25781/KAUST-78WF9