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Title: Single Crystal Microwires of p-DTS(FBTTh 2) 2 and Their Use in the Fabrication of Field-Effect Transistors and Photodetectors

Abstract

Single crystal microwires of a well–studied organic semiconductor used in organic solar cells, namely p–DTS(FBTTh 2) 2, are prepared via a self–assembly method in solution. The high level of intermolecular organization in the single crystals facilitates migration of charges, relative to solution–processed films, and provides insight into the intrinsic charge transport properties of p–DTS(FBTTh 2) 2. Field–effect transistors based on the microwires can achieve hole mobilities on the order of ≈1.8 cm 2 V –1 s –1. Furthermore, these microwires show photoresponsive electrical characteristics and can act as photoswitches, with switch ratios over 1000. Here, these experimental results are interpreted using theoretical simulations using an atomistic density functional theory approach. Based on the lattice organization, intermolecular couplings and reorganization energies are calculated, and hole mobilities for comparison with experimental measurements are further estimated. These results demonstrate a unique example of the optoelectronic applications of p–DTS(FBTTh 2) 2 microwires.

Authors:
 [1];  [2];  [3];  [1];  [3];  [4]; ORCiD logo [5];  [3]; ORCiD logo [3]
  1. Beijing JiaoTong Univ., Beijing (China)
  2. Univ. of California, Santa Barbara, CA (United States); Hunan Univ., Changsha (China)
  3. Univ. of California, Santa Barbara, CA (United States)
  4. Skolkovo Institute of Science and Technology, Moscow (Russia)
  5. Univ. of California, Santa Barbara, CA (United States); Skolkovo Inst. of Science and Technology, Moscow (Russia); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1512767
Report Number(s):
LA-UR-17-23764
Journal ID: ISSN 1616-301X
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Functional Materials
Additional Journal Information:
Journal Volume: 28; Journal Issue: 4; Journal ID: ISSN 1616-301X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Material Science; charge carrier mobility; field‐effect transistors; organic semiconductors; photodetectors; single‐crystals

Citation Formats

Cui, Qiuhong, Hu, Yuanyuan, Zhou, Cheng, Teng, Feng, Huang, Jianfei, Zhugayevych, Andriy, Tretiak, Sergei, Nguyen, Thuc -Quyen, and Bazan, Guillermo C. Single Crystal Microwires of p-DTS(FBTTh2)2 and Their Use in the Fabrication of Field-Effect Transistors and Photodetectors. United States: N. p., 2017. Web. doi:10.1002/adfm.201702073.
Cui, Qiuhong, Hu, Yuanyuan, Zhou, Cheng, Teng, Feng, Huang, Jianfei, Zhugayevych, Andriy, Tretiak, Sergei, Nguyen, Thuc -Quyen, & Bazan, Guillermo C. Single Crystal Microwires of p-DTS(FBTTh2)2 and Their Use in the Fabrication of Field-Effect Transistors and Photodetectors. United States. doi:10.1002/adfm.201702073.
Cui, Qiuhong, Hu, Yuanyuan, Zhou, Cheng, Teng, Feng, Huang, Jianfei, Zhugayevych, Andriy, Tretiak, Sergei, Nguyen, Thuc -Quyen, and Bazan, Guillermo C. Wed . "Single Crystal Microwires of p-DTS(FBTTh2)2 and Their Use in the Fabrication of Field-Effect Transistors and Photodetectors". United States. doi:10.1002/adfm.201702073. https://www.osti.gov/servlets/purl/1512767.
@article{osti_1512767,
title = {Single Crystal Microwires of p-DTS(FBTTh2)2 and Their Use in the Fabrication of Field-Effect Transistors and Photodetectors},
author = {Cui, Qiuhong and Hu, Yuanyuan and Zhou, Cheng and Teng, Feng and Huang, Jianfei and Zhugayevych, Andriy and Tretiak, Sergei and Nguyen, Thuc -Quyen and Bazan, Guillermo C.},
abstractNote = {Single crystal microwires of a well–studied organic semiconductor used in organic solar cells, namely p–DTS(FBTTh2)2, are prepared via a self–assembly method in solution. The high level of intermolecular organization in the single crystals facilitates migration of charges, relative to solution–processed films, and provides insight into the intrinsic charge transport properties of p–DTS(FBTTh2)2. Field–effect transistors based on the microwires can achieve hole mobilities on the order of ≈1.8 cm2 V–1 s–1. Furthermore, these microwires show photoresponsive electrical characteristics and can act as photoswitches, with switch ratios over 1000. Here, these experimental results are interpreted using theoretical simulations using an atomistic density functional theory approach. Based on the lattice organization, intermolecular couplings and reorganization energies are calculated, and hole mobilities for comparison with experimental measurements are further estimated. These results demonstrate a unique example of the optoelectronic applications of p–DTS(FBTTh2)2 microwires.},
doi = {10.1002/adfm.201702073},
journal = {Advanced Functional Materials},
issn = {1616-301X},
number = 4,
volume = 28,
place = {United States},
year = {2017},
month = {11}
}

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