TY - JOUR
T1 - Polymeric conducting anode for small organic transporting molecules in dark injection experiments
AU - Tse, S. C.
AU - Tsang, S. W.
AU - So, S. K.
N1 - Funding Information:
Supports of this research by the Research Committee of Hong Kong Baptist University under FRG/05-06/II-41 and the Research Grant Council of Hong Kong under HKBU/2173/04E are gratefully acknowledged.
PY - 2006/9
Y1 - 2006/9
N2 - Poly(3,4-ethylenedioxythiophene) doped with polystrenesulphonicacid (PEDOT:PSS) is used as a hole-injecting anode for small organic holetransporters in current-voltage (JV) and dark injection space-charge-limitedcurrent (DI-SCLC) experiments. The hole transporters under investigation arephenylamine-based 4,4′ ,4″-tris(N-3-methylphenyl-N-phenyl-amino) triphenylamine(MTDATA), N,N′-diphenyl-N,N′-bis(1-naphthyl) (1,1′-biphenyl)-4,4′diamine (NPB),and N,N′-diphenyl-N, N′-bis(3-methylphenyl)(1,1′-biphenyl)-4,4′diamine (TPD).Clear DI-SCLC transient peaks were observed over a wide range of electricfields in all cases. For MTDATA and NPB, hole mobilities evaluated by DIexperiments are in excellent agreement with mobilties deduced from independenttime-of-flight technique. It can be concluded that, for the purpose of JV andDI experiments, PEDOT:PSS forms an Ohmic contact with MTDATA and a quasi-Ohmiccontact with NPB despite the relatively low-lying highest occupied molecularorbital of the latter. In the case of TPD, hole injection from PEDOT:PSSdeviates substantially from Ohmic injection, leading to a lower than expectedDI-extracted hole mobility. The performances of other hole-injecting anodes forDI experiments were also examined.Thisarticle may be downloaded for personal use only. Any other use requires priorpermission of the author and AIP Publishing. This article appeared in S.C. Tse, S. W.Tsang, S.K. So; Polymeric conducting anode for small organic transporting molecules indark injection experiments. J. Appl. Phys. 15 September 2006; 100 (6):063708. https://doi.org/10.1063/1.2348640 and may befound at https://pubs.aip.org/aip/jap/article/100/6/063708/370162/Polymeric-conducting-anode-for-small-organic.
AB - Poly(3,4-ethylenedioxythiophene) doped with polystrenesulphonicacid (PEDOT:PSS) is used as a hole-injecting anode for small organic holetransporters in current-voltage (JV) and dark injection space-charge-limitedcurrent (DI-SCLC) experiments. The hole transporters under investigation arephenylamine-based 4,4′ ,4″-tris(N-3-methylphenyl-N-phenyl-amino) triphenylamine(MTDATA), N,N′-diphenyl-N,N′-bis(1-naphthyl) (1,1′-biphenyl)-4,4′diamine (NPB),and N,N′-diphenyl-N, N′-bis(3-methylphenyl)(1,1′-biphenyl)-4,4′diamine (TPD).Clear DI-SCLC transient peaks were observed over a wide range of electricfields in all cases. For MTDATA and NPB, hole mobilities evaluated by DIexperiments are in excellent agreement with mobilties deduced from independenttime-of-flight technique. It can be concluded that, for the purpose of JV andDI experiments, PEDOT:PSS forms an Ohmic contact with MTDATA and a quasi-Ohmiccontact with NPB despite the relatively low-lying highest occupied molecularorbital of the latter. In the case of TPD, hole injection from PEDOT:PSSdeviates substantially from Ohmic injection, leading to a lower than expectedDI-extracted hole mobility. The performances of other hole-injecting anodes forDI experiments were also examined.Thisarticle may be downloaded for personal use only. Any other use requires priorpermission of the author and AIP Publishing. This article appeared in S.C. Tse, S. W.Tsang, S.K. So; Polymeric conducting anode for small organic transporting molecules indark injection experiments. J. Appl. Phys. 15 September 2006; 100 (6):063708. https://doi.org/10.1063/1.2348640 and may befound at https://pubs.aip.org/aip/jap/article/100/6/063708/370162/Polymeric-conducting-anode-for-small-organic.
UR - http://www.scopus.com/inward/record.url?scp=33749323028&partnerID=8YFLogxK
U2 - 10.1063/1.2348640
DO - 10.1063/1.2348640
M3 - Journal article
AN - SCOPUS:33749323028
SN - 0021-8979
VL - 100
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 6
M1 - 063708
ER -