Polymer Bistable Devices Based on Poly(3-hexylthiophene)/Poly(methylmethacrylate) Bilayer Films

PENG Bo; CAO Ya-peng; HU Yu-feng; TENG Feng

doi:10.3788/fgxb20163709.1090

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Polymer Bistable Devices Based on Poly(3-hexylthiophene)/Poly(methylmethacrylate) Bilayer Films

更新时间：2020-08-12

- Polymer Bistable Devices Based on Poly(3-hexylthiophene)/Poly(methylmethacrylate) Bilayer Films
- Chinese Journal of Luminescence Vol. 37, Issue 9, Pages: 1090-1096(2016)
- 作者机构：
  
  北京交通大学光电子技术研究所发光与光信息技术教育部重点实验室北京,100044
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163709.1090
  CLC： O484.3
- Received：08 March 2016，
  
  Revised：22 April 2016，
  
  Published：05 September 2016
- 稿件说明：
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彭博, 曹亚鹏, 胡煜峰等. P3HT/PMMA双层聚合物电双稳器件的研究[J]. 发光学报, 2016,37(9): 1090-1096

PENG Bo, CAO Ya-peng, HU Yu-feng etc. Polymer Bistable Devices Based on Poly(3-hexylthiophene)/Poly(methylmethacrylate) Bilayer Films[J]. Chinese Journal of Luminescence, 2016,37(9): 1090-1096
彭博, 曹亚鹏, 胡煜峰等. P3HT/PMMA双层聚合物电双稳器件的研究[J]. 发光学报, 2016,37(9): 1090-1096 DOI： 10.3788/fgxb20163709.1090.

PENG Bo, CAO Ya-peng, HU Yu-feng etc. Polymer Bistable Devices Based on Poly(3-hexylthiophene)/Poly(methylmethacrylate) Bilayer Films[J]. Chinese Journal of Luminescence, 2016,37(9): 1090-1096 DOI： 10.3788/fgxb20163709.1090.

摘要

通过逐层旋涂的方法，制备了P3HT（poly（3-hexylthiophene））与PMMA（poly（methylmethacrylate））双层器件，并与二者的共混溶液制备的器件进行了性能对比。利用扫描电镜（SEM）表征了双层器件的横截面形貌；利用电流-电压（

I-V

）以及电流-读取次数（

I-t

）测试，测量了两种器件的开关比以及持续时间特性。其中，双层器件具有更好的开关比，可达110

，同时反复读写测试表明器件性能非常稳定。为了解释电双稳现象产生的机理，对双层结构器件的电流-电压曲线进行了线性拟合，利用器件的能级图进行分析，得出了电荷在器件中的传输过程。研究结果表明，可以通过电荷俘获释放理论解释P3HT/PMMA双层器件电双稳特性产生的机理。

Abstract

P3HT/PMMA bilayer device was fabricated through layer by layer spin-coating method and the device performance was greatly enhanced comparing with P3HT and PMMA single layer device. SEM image was taken to study the cross-section morphology of the bilayer film. The current-voltage (

I-V

) and current-repeatable times (

I-t

) measurements were taken to investigate the performance of the devices. The bilayer one has a better ON/OFF ratio about 110

and the device is quite stable. The fitting of

I-V

curves was utilized to analyze the charge transport process with the help of the diagram of the energy bands. The results show that the charge trapping-detrapping theory can be used to explain the operating mechanism of the bilayer device.

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Keywords

references

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