文章信息/Info

Title:

Research on Preparation of Highly Stable Nano Y-TiOPc and Its Application Performance

文章編號:

1674-3962(2021)03-0189-09

作者:

劉　流; 韓明明; 張亞琴; 董曉菲; 劉紅麗; 王世榮; 李祥高

（天津大學化工學院 天津市功能精細化學品技術(shù)工程中心，天津 300350）

Author(s):

LIU Liu;  HAN Mingming;  ZHANG Yaqin;  DONG Xiaofei;  LIU Hongli;  WANG Shirong; LI Xianggao

(Tianjin Engineering Research Center of Functional Fine Chemicals, School of Chemical Engineering, Tianjin University, Tianjin 300350, China)

關(guān)鍵詞:

Y型酞菁氧鈦; 三氟乙酸; 穩(wěn)定性; 分散; 光電導性能

Keywords:

Y-TiOPc;  trifluoroacetic acid;  stability;  dispersion;  photoconductivity

分類號:

TM91.4; O472

DOI:

10.7502/j.issn.1674-3962.202004004

文獻標志碼:

A

摘要:

納米Y型酞菁氧鈦（Y-TiOPc）在600~900 nm范圍具有很強的光吸收特性，因此在光電轉(zhuǎn)換材料與器件方面具有非�？善诖�的應(yīng)用。Y-晶型不穩(wěn)定，易轉(zhuǎn)化成穩(wěn)定但光電響應(yīng)性差的β-晶型，從而導致材料和器件性能劣化。因此，高穩(wěn)定性Y-TiOPc納米材料的綠色制備方法和高性能器件研究是有機光電領(lǐng)域的重要問題之一。以三氟乙酸溶解TiOPc，將得到的溶液滴加到0 ℃的乙醇溶液中；然后，在剪切速度為900 r/min的強剪切作用下形成的1, 2-二氯乙烷/水微乳液中(此時微乳液的溫度為30 ℃)，調(diào)節(jié)析出沉淀晶型2 h，得到納米Y-TiOPc。得到的Y-TiOPc的平均粒徑為2.86 nm，結(jié)晶度93.82%，且在丁酮/環(huán)己酮體系中超聲波或球磨分散作用4 h后晶型保持穩(wěn)定，以其制備的分散液靜置30 d后的透射率變化率為0.53%。將制得的納米Y-TiOPc作為載流子產(chǎn)生材料制備有機光導器件，其對780 nm激光的響應(yīng)性能為：V0=-878.89 V，Rd=-12.10 V/s，Vr=-14.65 V，E1/2=0.17 μJ/cm2。因此，本工作介紹了一種制備高性能Y-TiOPc納米材料的有效方法。

Abstract:

Nano Y-type titanyl phthalocyanine (Y-TiOPc) has received substantial attention in photoelectric conversion materials and devices, because it possesses strong light absorption in the range of 600~900 nm. However，the green preparation of Y-TiOPc with high stability is still a great challenge, because Y-type crystal is unstable and easy to be converted into stable β-type crystal, resulting in poor photoelectric response. Herein, we reported an efficient strategy to fabricate highly stable nano Y-TiOPc. In this work, TiOPc was dissolved in trifluoroacetic acid, and the obtained solution was dropped into ethanol solution at 0 ℃. Afterwards, adding to the 1, 2-C2H4Cl2/H2O microemulsion formed under strong shear at the shearing speed of 900 rmp，the precipitates was adjusted at 30 ℃ for 2 h to obtain highly stable nano Y-TiOPc. As a result, the average crystal size of Y-TiOPc is 2.86 nm and the crystallinity of Y-TiOPc is 93.82%. In addition, the crystal exhibits a stable crystalline type in the Methyl Ethyl Ketone/Cyclohexanone system after ultrasonic or ball milling dispersion for 4 h. And, the transmittance variation of the dispersion prepared with Y-TiOPc reaches 0.53% after 30 d. The response properties of organic photoconductivity device using Y-TiOPc as carriers generating material shows the V0 of -878.89 V, Rd of -12.10 V/s, Vr of -14.65 V, and E1/2 of 0.17 μJ/cm2 with excitation of 780 nm laser. This work provides an effective method for achieving Y-TiOPc nanomaterials with excellent performance.