PMID- 28783949
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180727
LR  - 20180727
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 9
IP  - 34
DP  - 2017 Aug 30
TI  - A Nonchlorinated Solvent-Processable Fluorinated Planar Conjugated Polymer for 
      Flexible Field-Effect Transistors.
PG  - 28817-28827
LID - 10.1021/acsami.7b08071 [doi]
AB  - High carrier mobilities have recently been achieved in polymer field effect 
      transistors (FETs). However, many of these polymer FET devices require the use of 
      chlorinated solvents such as chloroform (CF), chlorobenzene (CB), and 
      o-dichlorobenzene (DCB) during fabrication. The use of these solvents is highly 
      restricted in industry because of health and environmental issues. Here, we 
      report the synthesis of a low band gap (1.43 eV, 870 nm) semiconducting polymer 
      (PDPP2DT-F2T2) having a planar geometry, which can be readily processable with 
      nonchlorinated solvents such as toluene (TOL), o-xylene (XY), and 
      1,2,4-trimethylbenzene (TMB). We performed structural characterization of 
      PDPP2DT-F2T2 films prepared from different solvents, and the electrical 
      properties of the films were measured in the context of FETs. The devices 
      exhibited an ambipolar behavior with hole dominant transport. Hole mobilities 
      increased with increasing boiling point (bp) of the nonchlorinated solvents: 
      0.03, 0.05, and 0.10 cm(2) V(-1) s(-1) for devices processed using TOL, XY, and 
      TMB, respectively. Thermal annealing further improved the FET performance. 
      TMB-based polymer FETs annealed at 200  degrees C yielded a maximum hole mobility of 1.28 
      cm(2) V(-1) s(-1), which is far higher than the 0.43 cm(2) V(-1) s(-1) obtained 
      from the CF-based device. This enhancement was attributed to increased interchain 
      interactions as well as improved long-range interconnection between fibrous 
      domains. Moreover, all of the nonchlorinated solutions generated purely edge-on 
      orientations of the polymer chains, which is highly beneficial for carrier 
      transport in FET devices. Furthermore, we fabricated an array of flexible 
      TMB-processed PDPP2DT-F2T2 FETs on the plastic PEN substrates. These devices 
      demonstrated excellent carrier mobilities and negligible degradation after 300 
      bending cycles. Overall, we demonstrated that the organized assembly of polymer 
      chains can be achieved by slow drying using high bp nonchlorinated solvents and a 
      post thermal treatment. Furthermore, we showed that polymer FETs processed using 
      high bp nonhalogenated solvents may outperform those processed using halogenated 
      solvents.
FAU - Lee, Myeongjae
AU  - Lee M
AD  - Department of Chemistry, Korea University , Seoul 02841, Republic of Korea.
FAU - Kim, Min Je
AU  - Kim MJ
AD  - SKKU Advanced Institute of Nanotechnology (SAINT), School of Chemical 
      Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea.
FAU - Ro, Suhee
AU  - Ro S
AD  - Department of Science Education, Ewha Womans University , Seoul 03760, Republic 
      of Korea.
FAU - Choi, Shinyoung
AU  - Choi S
AD  - Department of Science Education, Ewha Womans University , Seoul 03760, Republic 
      of Korea.
FAU - Jin, Seon-Mi
AU  - Jin SM
AD  - Graduate School of Analytical Science and Technology, Chungnam National 
      University , Daejeon 34134, Republic of Korea.
FAU - Nguyen, Hieu Dinh
AU  - Nguyen HD
AD  - Department of Chemistry, Kunsan National University , Kunsan-si 54150, Republic 
      of Korea.
FAU - Yang, Jeehye
AU  - Yang J
AD  - Department of Chemical Engineering, Soongsil University , Seoul 06978, Republic 
      of Korea.
FAU - Lee, Kyung-Koo
AU  - Lee KK
AD  - Department of Chemistry, Kunsan National University , Kunsan-si 54150, Republic 
      of Korea.
FAU - Lim, Dong Un
AU  - Lim DU
AD  - SKKU Advanced Institute of Nanotechnology (SAINT), School of Chemical 
      Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea.
FAU - Lee, Eunji
AU  - Lee E
AUID- ORCID: 0000-0001-7494-1776
AD  - Graduate School of Analytical Science and Technology, Chungnam National 
      University , Daejeon 34134, Republic of Korea.
FAU - Kang, Moon Sung
AU  - Kang MS
AUID- ORCID: 0000-0003-0491-5032
AD  - Department of Chemical Engineering, Soongsil University , Seoul 06978, Republic 
      of Korea.
FAU - Choi, Jong-Ho
AU  - Choi JH
AD  - Department of Chemistry, Korea University , Seoul 02841, Republic of Korea.
FAU - Cho, Jeong Ho
AU  - Cho JH
AUID- ORCID: 0000-0002-1030-9920
AD  - SKKU Advanced Institute of Nanotechnology (SAINT), School of Chemical 
      Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea.
FAU - Kim, BongSoo
AU  - Kim B
AUID- ORCID: 0000-0002-4982-6343
AD  - Department of Science Education, Ewha Womans University , Seoul 03760, Republic 
      of Korea.
LA  - eng
PT  - Journal Article
DEP - 20170815
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
OTO - NOTNLM
OT  - carrier mobility
OT  - flexible electronics
OT  - low bandgap polymer
OT  - mechanical stability
OT  - nonchlorinated solvent
OT  - organic transistor
EDAT- 2017/08/09 06:00
MHDA- 2017/08/09 06:01
CRDT- 2017/08/09 06:00
PHST- 2017/08/09 06:00 [pubmed]
PHST- 2017/08/09 06:01 [medline]
PHST- 2017/08/09 06:00 [entrez]
AID - 10.1021/acsami.7b08071 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2017 Aug 30;9(34):28817-28827. doi: 
      10.1021/acsami.7b08071. Epub 2017 Aug 15.