1,3-Bisdiphenylethenyl-substituted Carbazolyl Derivatives as Charge Transporting Materials
作者:Giedre Bubniene、Maryte Daskeviciene、Audrius Pukalskas、Vygintas Jankauskas、Vytautas Getautis
DOI:10.3390/molecules171214846
日期:——
Synthesis of 1,3-diphenylethenylcarbazolyl-based charge transporting materials involving electron donating hydrazone moieties and an electron withdrawing 1,3-indandione moiety is reported. The obtained materials were examined by various techniques, including differential scanning calorimetry, UV-Vis spectroscopy, xerographic time of flight technique and the electron photoemission in air method. Photoemission spectra of the amorphous films of the investigated compounds showed ionization potentials of 5.54–5.90 eV. The hole drift mobility was measured by the xerographic time of flight technique. The highest hole drift mobility, exceeding 10−5 cm2/V·s at 6.4 × 105 V/cm electric field, was observed for the 1,3-diphenylethenylcarbazolyl derivative molecularly doped with a N,N-diphenylhydrazone moiety in the polymeric host bisphenol-Z polycarbonate (PC-Z).
报告了基于1,3-二苯乙烯基咔唑的电荷传输材料的合成,这些材料涉及电子给体醛肟部分和一个电子受体的1,3-偶氮烷酮部分。所获得的材料通过各种技术进行了检测,包括差示扫描量热法(DSC)、紫外可见光谱法、静电喷墨时间飞行技术和空气中的电子光发射法。所研究化合物的非晶薄膜的光发射光谱显示出离子化势为5.54–5.90 eV。通过静电喷墨时间飞行技术测量了孔漂移迁移率。对于在聚合物基质双酚-Z聚碳酸酯(PC-Z)中分子掺杂N,N-二苯肼酮部分的1,3-二苯乙烯基咔唑衍生物,观察到在6.4 × 10^5 V/cm电场下,孔漂移迁移率超过10−5 cm^2/V·s的最高值。