TY - JOUR
T1 - Calix[4]resorcinarene-based branched macromolecules for all-optical photorefractive applications
AU - Liu, Wei
AU - Yang, Haitao
AU - Wu, Wenbo
AU - Gao, Hongyan
AU - Xu, Shidang
AU - Guo, Qing
AU - Liu, Yingliang
AU - Xu, Shengang
AU - Cao, Shaokui
N1 - Publisher Copyright:
© 2016 The Royal Society of Chemistry.
PY - 2016
Y1 - 2016
N2 - By introducing nonlinear optical (NLO) chromophores to calix[4]resorcinarene, a non-centrosymmetric core, through powerful click chemistry reactions, two branched macromolecules (CRA-CzAZO and CRA-CzCSN) were obtained in satisfactory yields for photorefractive (PR) applications. In comparison with traditional PR materials, which usually need a high external electric field or a poling procedure to realize the PR effect, CRA-CzAZO and CRA-CzCSN can show a good all-optical PR (AOPR) effect, namely showing the PR effect without an external electric field, due to their special non-centrosymmetric topological structure. Two-beam coupling technology is used to prove the PR performance, and a high coupling gain coefficient of 83.2 cm-1 is realized with zero field through optically transparent films of CRA-CzAZO doped with 30% N-ethyl-carbazole as the plasticizer and photoconductor, and 1% C60 as the photosensitizer, indicating that a CRA-CzAZO based composite thin film could serve as a good candidate for real PR applications. More importantly, CRA-CzAZO and CRA-CzCSN provide a new simple design strategy for AOPR materials.
AB - By introducing nonlinear optical (NLO) chromophores to calix[4]resorcinarene, a non-centrosymmetric core, through powerful click chemistry reactions, two branched macromolecules (CRA-CzAZO and CRA-CzCSN) were obtained in satisfactory yields for photorefractive (PR) applications. In comparison with traditional PR materials, which usually need a high external electric field or a poling procedure to realize the PR effect, CRA-CzAZO and CRA-CzCSN can show a good all-optical PR (AOPR) effect, namely showing the PR effect without an external electric field, due to their special non-centrosymmetric topological structure. Two-beam coupling technology is used to prove the PR performance, and a high coupling gain coefficient of 83.2 cm-1 is realized with zero field through optically transparent films of CRA-CzAZO doped with 30% N-ethyl-carbazole as the plasticizer and photoconductor, and 1% C60 as the photosensitizer, indicating that a CRA-CzAZO based composite thin film could serve as a good candidate for real PR applications. More importantly, CRA-CzAZO and CRA-CzCSN provide a new simple design strategy for AOPR materials.
UR - https://www.scopus.com/pages/publications/84996879340
U2 - 10.1039/c6tc04062d
DO - 10.1039/c6tc04062d
M3 - 文章
AN - SCOPUS:84996879340
SN - 2050-7534
VL - 4
SP - 10684
EP - 10690
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 45
ER -