Systems of organic photon-gated photochemical hole burning

• DOI: 10.1364/josab.9.000800
• Publication Date: 2008-11-13T14:57:37Z
• Authors: Duoyuan Wang; Lizeng Zhao; Zhengzhong Lu; Lingzhi Hu; Huizhu He; Xiulang Zhang; Dongxiang Zhang; Jianming Rong; Jie Xie; Xin Mi; Yuxin Ni; Junyi Zhang; Peixian Ye
• Keywords: Acceptor; Spectral hole burning

We report a new series of organic systems for photon-gated photochemical hole burning by donor–acceptor electron transfer at 4.2 K. The donor molecules (RZT) are meso-tetraaryl derivatives zinc-tetrabenzoporphyrin: the aryls phenyl (PZT), p-tolyl (TZT), and α-naphthayl (NZT), respectively. acceptor can be one several aromatic cyanides (AC's), e.g., dicyanobenzene, cyanonaphthalene, or cyanoanthracene. These have an inhomogeneously broadened optical transition centered 627 nm with FWHM that varies from 330 to 390 cm−1 depending on concentration in polymethyl methacry-late (PMMA) matrix. RZT–AC–PMMA exhibit typical spectral hole-burning characteristics, multiple gated holes easily burned.