Application of poly(N ', N", N"'-tris[N, N-bis-(4 '-diphenylamino-biphenyl-4-yephenyl]-1, 3, 5-benzene tricarboxamide) (PG1), a triphenylamine dendritic polymer, in an complementary electrochromic device (ECD) has been studied. Electrochromic transitions of PG1 itself give very significant transmittance change (Delta T) of 58.4% at 485 nm and 81.8% at 780 nm with rather good cycling stability. A complementary ECD based on the PG1 thin film and poly(3,4-ethylenedioxythiophene) (PEDOT) thin film was assembled to demonstrate panchromatic absorption characteristic through a simple fabrication process. This ECD exhibits black-to-transmissive electrochromism when switched from -0.4 to 1.5 V. Large variation in L* value in CIE L*a*b* coordinate (45.6) and Delta T (55.5% at 510 nm) is observed. In fact, the Delta T value achieved in this work is comparable to the highest value (58%) among all reported triphenylamine derivative/PEDOT ECDs after an extensive literature search. Furthermore, good cycling stability is achieved in the proposed ECD, which still retained panchromatic absorption characteristic and maintained 91.7% of the initial Delta T value at 510 nm after continuous 10,000 switchings. (c) 2015 Elsevier B.V. All rights reserved.