Abstract
Highly photosensitive organic phototransistors (OPTs) are successfully demonstrated on a flexible substrate using all-solution process as well as a combination of printing methods which consist of roll-to-plate reverse offset printing (ROP), inkjet printing and bar coating. Excellent electrical switching characteristics are obtained from heterogeneous interfacial properties of the reverse-offset-printed silver nanoparticle electrode and the inkjet-printed p-channel polymeric semiconductor. In particular, the OPTs exhibit remarkably photosensitivity with a photo-to-dark current ratio exceeding 5 orders. This optoelectronic properties of the combinational printed OPTs are theoretically and experimentally studied, and found the comparable tendency. In addition, excellent mechanical stability is observed with up to 0.5% of strain applied to the OPTs. Hence, by manufactured with a combination of various graphic art printing methods such as roll-to-plate ROP, inkjet printing, and bar coating, these devices are very promising candidates for large-area and low-cost printed and flexible optoelectronics applications.
| Original language | English |
|---|---|
| Pages (from-to) | 2677-2684 |
| Number of pages | 8 |
| Journal | Organic Electronics: physics, materials, applications |
| Volume | 15 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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ASJC Scopus subject areas
- Biomaterials
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Electrical and Electronic Engineering
- Chemistry(all)
- Condensed Matter Physics
Cite this
Flexible organic phototransistors based on a combination of printing methods. / Kim, Minseok; Ha, Hyun Jun; Yun, Hui Jun; You, In Kyu; Baeg, Kang Jun; Kim, Yun Hi; Ju, Byeong Kwon.
In: Organic Electronics: physics, materials, applications, Vol. 15, No. 11, 01.01.2014, p. 2677-2684.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Flexible organic phototransistors based on a combination of printing methods
AU - Kim, Minseok
AU - Ha, Hyun Jun
AU - Yun, Hui Jun
AU - You, In Kyu
AU - Baeg, Kang Jun
AU - Kim, Yun Hi
AU - Ju, Byeong Kwon
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Highly photosensitive organic phototransistors (OPTs) are successfully demonstrated on a flexible substrate using all-solution process as well as a combination of printing methods which consist of roll-to-plate reverse offset printing (ROP), inkjet printing and bar coating. Excellent electrical switching characteristics are obtained from heterogeneous interfacial properties of the reverse-offset-printed silver nanoparticle electrode and the inkjet-printed p-channel polymeric semiconductor. In particular, the OPTs exhibit remarkably photosensitivity with a photo-to-dark current ratio exceeding 5 orders. This optoelectronic properties of the combinational printed OPTs are theoretically and experimentally studied, and found the comparable tendency. In addition, excellent mechanical stability is observed with up to 0.5% of strain applied to the OPTs. Hence, by manufactured with a combination of various graphic art printing methods such as roll-to-plate ROP, inkjet printing, and bar coating, these devices are very promising candidates for large-area and low-cost printed and flexible optoelectronics applications.
AB - Highly photosensitive organic phototransistors (OPTs) are successfully demonstrated on a flexible substrate using all-solution process as well as a combination of printing methods which consist of roll-to-plate reverse offset printing (ROP), inkjet printing and bar coating. Excellent electrical switching characteristics are obtained from heterogeneous interfacial properties of the reverse-offset-printed silver nanoparticle electrode and the inkjet-printed p-channel polymeric semiconductor. In particular, the OPTs exhibit remarkably photosensitivity with a photo-to-dark current ratio exceeding 5 orders. This optoelectronic properties of the combinational printed OPTs are theoretically and experimentally studied, and found the comparable tendency. In addition, excellent mechanical stability is observed with up to 0.5% of strain applied to the OPTs. Hence, by manufactured with a combination of various graphic art printing methods such as roll-to-plate ROP, inkjet printing, and bar coating, these devices are very promising candidates for large-area and low-cost printed and flexible optoelectronics applications.
KW - Field-effect transistors
KW - Organic phototransistors
KW - Organic semiconductors
KW - Printed electronics
KW - Reverse offset printing
UR - http://www.scopus.com/inward/record.url?scp=84906706882&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84906706882&partnerID=8YFLogxK
U2 - 10.1016/j.orgel.2014.07.041
DO - 10.1016/j.orgel.2014.07.041
M3 - Article
AN - SCOPUS:84906706882
VL - 15
SP - 2677
EP - 2684
JO - Organic Electronics: physics, materials, applications
JF - Organic Electronics: physics, materials, applications
SN - 1566-1199
IS - 11
ER -