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Adhesion and thermal stability enhancement of IZO films by adding a primer layer on polycarbonate substrate
Author(s) -
Zhang Xuan,
Zhang Xiaofeng,
Yan Yue,
Zhong Yanli,
Li Lei,
Zhang Guanli
Publication year - 2015
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201431685
Subject(s) - materials science , primer (cosmetics) , annealing (glass) , amorphous solid , polycarbonate , thermal stability , sputter deposition , layer (electronics) , adhesion , composite material , sputtering , substrate (aquarium) , chemical engineering , thin film , nanotechnology , chemistry , organic chemistry , engineering , oceanography , geology
A silicone‐based primer layer was developed to improve the adhesion and thermal stability of amorphous transparent indium zinc oxide (IZO) films on polycarbonate (PC). The IZO films deposited by direct current magnetron sputtering at room temperature on primer‐treated and untreated PCs were evaluated ex situ in terms of surface morphology, adhesion, optical, and electrical properties during annealing at 120 °C in air. Nano‐scratch tests indicated the adhesion of IZO films on primer‐treated substrates was superior to that on untreated PCs. This superior adhesion can be attributed to the strong Si‐O‐Si inorganic bonds abundant in the primer layer and better matches of the primer layer in the terms of thermal expansion to the IZO. Moreover, the electrical resistivity of IZO films prepared on primer‐treated PCs remained stable during the annealing treatment, whereas those of IZO films on untreated PCs presented a continuously increasing trend, which was attributed to the decrease in carrier concentration that resulted from oxygen adsorption.