"Can an organic phosphorescent dye act as a charge transporter?"

W.H. Choi, C.H. Cheung, and S.K. So, Organic Electronics 11, 872-875 (2010).

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"Organic electronics: materials, processing, devices and applications"

S.C. Tse, C.H. Cheung, and S.K. So,  F. So Ed., Chap. 3, CRC Press, Francis and Taylor (2010).

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"Role of air exposure in the improvement of injection efficiency of transition metal oxide/organic contact"

C.H. Cheung, W.J. Song, and S.K. So,  Organic Electronics 11,89-94 (2010).

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"Charge injection and transport in spiro-linked arylamine compounds"

W.H. Choi and S.K. So, Proc. of SPIE 7415,74151L (2009).

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"Advantages of admittance spectroscopy over time-of-flight technique for studying dispersive charge transport in an organic semiconductor"

K.K. Tsung and S.K. So, J. Appl.Phys. 106, 083710 (2009).

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"High temperature carrier mobility as an intrinsic transport parameter of an organic semiconductor"

K.K. Tsung and S.K. So, Organic Electronics 10, 661 (2009).

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"NPB-Based RGB Single-Layer OLEDs"

Ka Kin Tsung, Shing Chi Tse, and Shu Kong So, SID Tech. Digest, Volume 39, Issue 3, 2008, Pages 2032.

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"Carrier transport in molecularly doped organic materials"

S.K. So and K.K. Tsung, Proc. SPIE 7051, 70511B-1 (2008).

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"Determination of carrier mobility of amorphous organic electronic material by thin film transistor configuration"

C.H. Cheung, K.K. Tsung, and S.K. So,  Proc. SPIE 7051, 70511M-1 (2008).

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"Using thin film transistors to quantify carrier transport properties of amorphous organic semiconductors"

C.H. Cheung, K.K. Tsung, K.C. Kwok, and S.K. So, Appl. Phys. Lett. 93, 083307 (2008).

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"Carrier trapping and scattering in amorphous organic hole transporter"

K.K. Tsung and S.K. So, Appl. Phys. Lett. 92, 103315 (2008).

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"Determination of carrier mobility in phenylamine by time-of-flight, dark-injection, and thin film transistor techniques"

C.H. Cheung, K.C. Kwok, S.C. Tse, and S.K. So, J. Appl. Phys. 103, 093705 (2008).

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