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In this paper,a new solvent-free crystal phase transformation approach for fabrication of α-andβ-form metal-free phthalocyanine(H2Pc) with good performance is reported. The cyclic condensation of1,3-diiminoisoindoline is used to fabricate H_2Pc powder,which appears α-form with low crystallinity after purification paste. According to the effect of annealing temperature on the thermal phase transformation process,α-H_2Pc with 100% crystallinity at 190 ℃ for 2 h is obtained. And β-H_2Pc with 95. 04% crystallinity could be also obtained at 280 ℃ for 2 h. The morphology of H_2Pc obtained in different conditions is studied,which is changed from irregular sheet structure to rodlike structure. Laser organic photoconductors doped H_2Pc as the charge generation material are also prepared to detect the photoelectric per-formance. The α-H_2Pc and β-H_2Pc present the good photosensitivity with 0. 609 and 0. 420 μJ·cm-2,respectively. As a result,this new crystal phase transformation approach for H_2Pc is simple and environmental friendly. Here,α-H_2Pc and β-H_2Pc with good photoconductive properties could be obtained continuously,which could be widely used in high speed laser organic photoconductor.
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Basic Information:
DOI：10.13353/j.issn.1004.9533.20151052
China Classification Code:TB34
Citation Information:
[1]Pu Bingye,Li Xianggao,Wang Shirong ,et al.A New Solvent-Free Preparation Approach for Polymouphous Metal-Free Phthalocyanine Photoconductive Materials and Their Performances[J].Chemical Industry and Engineering,2017,34(03):1-7.DOI:10.13353/j.issn.1004.9533.20151052.
Fund Information:
国家863项目(2012AA030307); 国家自然基金(21176180); 天津科技支持计划(13ZCZDGX0090)
2016-09-30
2016-09-30
2016-09-30