1,1 -Biphenyl-4,4 -diamine

N,N-bis(4-methylphenyl)-N,iV-bis(4-ethylphenyl)-[l,l -(3,3 -dimethyl)biphenyl]-4,4 -diamine [115310-63-9] (ETPD) (8) -doped PMPS (Table 1, entry 22), hole mobihty approaching 10 cm /Vs at 2.5 x 10 V/cm was observed (48). This is the highest recorded hole mobihty for disordered organic systems. From this perceptive, it is very interesting to study the carrier mobihty of polymers heavily doped with semiconductor nanoclusters. 

Synonyms AI3-00140 Azoic diazo component 112 Benzidine base p-Benzidine Benzioine 4,4 -Bianiline p,//-Bianiline (l,l -Biphenyl)-4,4 -diamine 4,4 -Biphenyldiamine p,//-Biphenyl-diamine 4,4 -Biphenylenediamine p,//-Biphenylenediamine BRN 0742770 CCRIS 71 C.I. 37225 C.I. azoic diazo component 112 4-Diaminodiphenyl jo-Diaminodiphenyl 4,4 -Diamino-biphenyl p,//-Diaminobiphenyl 4,4 -Diamino-l,l -biphenyl 4,4 -Diaminodiphenyl p.p -Di-aminodiphenyl 4,4 -Dianiline p,/y-Dianiline 4,4 -Diphenylenediamine p,//-Diphenylenedi-amine EINECS 202-199-1 Fast corinth base B NCI-C03361 NSC 146476 RCRA waste number U021 UN 1885. 

Synonyms BRN 2108022 CCRIS 220 C.I. 23060 Curithane C126 DCB 4,4 -Diamino-3,3 -di-chlorobiphenyl 4,4 -Diamino-3,3 -dichlorodiphenyl Dichlorobenzidine Dichlorobenzidine base m m -Dichlorobenzidine 3,3 -Dichloro-l,r-(biphenyl)-4,4 -diamine 3,3 -Dichlorobiphenyl-4,4 -diamine 3,3 -Dichloro-4,4 -biphenyldiamine 3,3 -Dichloro-4,4 -diaminobiphenyl 3,3 -Di-chloro-4,4 -diamino(l,1-biphenyl) EINECS 202-109-0 NSC 154073 RCRA waste number U073. 

Synonym(s) Dichlorobenzidine 3,3 -dichloro(1,1 -biphenyl)-4,4 -diamine 3,3 -dichloro-4,4 - Merck 1989... 

An example "double heterostructure" OLED shown in Figure 7c uses an ITO coated glass substrate, upon which a hole transporting layer, typically composed of a tertiary amine (eg, IV,IV-biphenyl-A IV7-bis(3-methylphenyl)l-l biphenyl-4,4 diamine, abbreviated TPD), a thin film of an emissive material such as aluminum-8-hydroxyquinoline(Alq3) and an electron-transporting layer (often an oxidiazole derivative) are sequentially deposited in vacuum (Fig. 

Fig. 5. Charge-transport molecules (a) A, AAbis(3-methylphenyl)-A,AAcliphenyl-[l,l,-biphenyl]-4,4,-diamine [65181-78-4]-, (b) 4-(diethylamino)benzaldehyde diphenylhydrazone [68189-25-1] (c) 4-[2-[5-[4-(diethylamino)phenyl]-4,5-dihydro-l-phenyl-lH-pyrazol-3-yl]ethenyl]-N,N-diethylbenzenamine [57609-72-0]...

An interesting bifunctional PMO with photoluminescence (PL) properties was recently reported by Wahab et al.298 By employing the EISA approach, they incorporated (up to 5 wt%) A,A,-bis(4-fert-butylphenyl)-A,A -bis(4-(( )-2-(triethoxysilyl)-vinyl)phenyl)biphenyl-4,4 -diamine (BBDA) (Fig. 3.25) into the matrix of thin films of a well-ordered organosilica matrix based on BTEE (2). While films made of the pure BBDA showed a broad featureless PL spectmm with a maximum at... 

Figure 3.25 Chemical structure of N.N1 -bis(4-tert-butylphenyl)WW-bis(4-(( )-2-(triethoxysilyl)vinyl)phenyl)biphenyl-4,4 -diamine (BBDA).

FIG. 4.1. Molecular structure of (a) 8-tris-hydroxyquinoline A1 ("Alqj ), (b) three-armed star (3-AS) 4.4 .4 -tris[N-(3-methoxyphenyl)-N-phenylamine-triphenylamine], and (c) N,N -diphenyl-N,N -bis(3-methylphenyl)-l,r-biphenyl-4,4 diamine (TPD) [68]. 

Figure 26 Emission spectra (PL, EL) in PC at room temperature of 40 wt% TPD donor solution with a 40 wt% of PBD acceptor added. The photoluminescence (PL) spectrum excited at 360 nm, the electroluminescence (EL) spectra (I, II) originate from the recombination radiation in a 60 nm thick film, taken at two different voltages. Absorption (Abs) and PL spectra (excitation at 360 nm) of (75wt% TPD 25wt% PC) and (75wt% PBD 25wt% PC) spin-cast films are given for comparison. Molecular structures of the compounds used are given in the upper part of the figure TPD [N,Nf-diphenyl-A v/V/-bis(3-methylphenyl)-l,l -biphenyl-4,4 diamine PBD [2-(4-biphenyl)-5-(4- er .-butylphenyl)l,3,4-oxadiazole PC[bisphe-nol-A-polycarbonate]. Adapted from Ref. 112.

A composition comprising a Ceo fullerene-terminated poly(A-[(propylphenyl]-AA, A -triphenyl-(l,l - biphenyl)-4,4 -diamine)methacrylate has been prepared by living radical polymerization. When blended with a plasticizer and a nonlinear chromophore, photorefractive efficiencies were improved by up to 9% at abiased voltage of 60 V/pm. 

Preparation of Poly(A-[(Propylphenyl]-N,N, A -Triphenyl-(1,1 -Biphenyl) -4,4 -Diamine)Methacrylate... 

Hor and Popovic (1994) measured photogeneration efficiencies of dispersions of HOGaPc in poly (vinyl butyral) (PVB) by delayed-field collection and field-induced fluorescence quenching techniques. The HOGaPc polymorph was described as type V. The transport layers contained N,N -diphenyl-N,N -bis(3-methylphenyl)-(l,r-biphenyl)-4,4 -diamine. Like many phthalocyanines, HOGaPc exhibits a linear correlation of the photogeneration and field-induced... 

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