Abstract
We demonstrated multi-color microfluidic electrochemiluminescence (ECL) cells. 5,6,11,12-Tetraphenylnaphthacene (rubrene), 9,10-diphenylanthracene (DPA), tetraphenyldibenzoperiflanthene (DBP)-doped rubrene, and 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) dissolved in a mixed organic solvent of 1,2-dichlorobenzene and acetonitrile in the ratio of 2:1 (v/v) were used as yellow, blue, red, and green ECL solutions, respectively. Light emissions were confirmed using simple-structured ECL cells consisting of two indium tin oxide (ITO) coated glass substrates with an SU-8 spacer of thickness varying from 0.9 to 6 μm. The SU-8-based microfluidic ECL cells were fabricated using photolithography and heterogeneous bonding techniques through the use of epoxy- and amine-terminated self-assembled monolayers. The emitting layers were formed on-demand by injecting the chosen ECL solutions into the microchannels sandwiched between ITO anode and cathode pairs. Multi-color ECL was successfully obtained at the light-emitting pixels. The microfluidic ECL cells with DBP-doped rubrene solution showed a maximum luminance of 11.6 cd/m2 and the current efficiency of ca. 0.32 cd/A at 8 V. We expect that the proposed microfluidic device will be a highly promising technology for liquid-based light-emitting applications.
| Original language | English |
|---|---|
| Pages (from-to) | 225-229 |
| Number of pages | 5 |
| Journal | Sensors and Actuators, A: Physical |
| Volume | 214 |
| DOIs | |
| Publication status | Published - 2014 Aug 1 |
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Keywords
- Electro-microfluidic
- Electrochemiluminescence
- Microfluidic ECL cells
- Microfluidic OLED
- Multi-color
- Passive-matrix
ASJC Scopus subject areas
- Metals and Alloys
- Surfaces, Coatings and Films
- Instrumentation
- Electrical and Electronic Engineering
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Multi-color microfluidic electrochemiluminescence cells. / Kasahara, Takashi; Matsunami, Shigeyuki; Edura, Tomohiko; Ishimatsu, Ryoichi; Oshima, Juro; Tsuwaki, Miho; Imato, Toshihiko; Shoji, Shuichi; Adachi, Chihaya; Mizuno, Jun.
In: Sensors and Actuators, A: Physical, Vol. 214, 01.08.2014, p. 225-229.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Multi-color microfluidic electrochemiluminescence cells
AU - Kasahara, Takashi
AU - Matsunami, Shigeyuki
AU - Edura, Tomohiko
AU - Ishimatsu, Ryoichi
AU - Oshima, Juro
AU - Tsuwaki, Miho
AU - Imato, Toshihiko
AU - Shoji, Shuichi
AU - Adachi, Chihaya
AU - Mizuno, Jun
PY - 2014/8/1
Y1 - 2014/8/1
N2 - We demonstrated multi-color microfluidic electrochemiluminescence (ECL) cells. 5,6,11,12-Tetraphenylnaphthacene (rubrene), 9,10-diphenylanthracene (DPA), tetraphenyldibenzoperiflanthene (DBP)-doped rubrene, and 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) dissolved in a mixed organic solvent of 1,2-dichlorobenzene and acetonitrile in the ratio of 2:1 (v/v) were used as yellow, blue, red, and green ECL solutions, respectively. Light emissions were confirmed using simple-structured ECL cells consisting of two indium tin oxide (ITO) coated glass substrates with an SU-8 spacer of thickness varying from 0.9 to 6 μm. The SU-8-based microfluidic ECL cells were fabricated using photolithography and heterogeneous bonding techniques through the use of epoxy- and amine-terminated self-assembled monolayers. The emitting layers were formed on-demand by injecting the chosen ECL solutions into the microchannels sandwiched between ITO anode and cathode pairs. Multi-color ECL was successfully obtained at the light-emitting pixels. The microfluidic ECL cells with DBP-doped rubrene solution showed a maximum luminance of 11.6 cd/m2 and the current efficiency of ca. 0.32 cd/A at 8 V. We expect that the proposed microfluidic device will be a highly promising technology for liquid-based light-emitting applications.
AB - We demonstrated multi-color microfluidic electrochemiluminescence (ECL) cells. 5,6,11,12-Tetraphenylnaphthacene (rubrene), 9,10-diphenylanthracene (DPA), tetraphenyldibenzoperiflanthene (DBP)-doped rubrene, and 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) dissolved in a mixed organic solvent of 1,2-dichlorobenzene and acetonitrile in the ratio of 2:1 (v/v) were used as yellow, blue, red, and green ECL solutions, respectively. Light emissions were confirmed using simple-structured ECL cells consisting of two indium tin oxide (ITO) coated glass substrates with an SU-8 spacer of thickness varying from 0.9 to 6 μm. The SU-8-based microfluidic ECL cells were fabricated using photolithography and heterogeneous bonding techniques through the use of epoxy- and amine-terminated self-assembled monolayers. The emitting layers were formed on-demand by injecting the chosen ECL solutions into the microchannels sandwiched between ITO anode and cathode pairs. Multi-color ECL was successfully obtained at the light-emitting pixels. The microfluidic ECL cells with DBP-doped rubrene solution showed a maximum luminance of 11.6 cd/m2 and the current efficiency of ca. 0.32 cd/A at 8 V. We expect that the proposed microfluidic device will be a highly promising technology for liquid-based light-emitting applications.
KW - Electro-microfluidic
KW - Electrochemiluminescence
KW - Microfluidic ECL cells
KW - Microfluidic OLED
KW - Multi-color
KW - Passive-matrix
UR - http://www.scopus.com/inward/record.url?scp=84901644202&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84901644202&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2014.04.039
DO - 10.1016/j.sna.2014.04.039
M3 - Article
VL - 214
SP - 225
EP - 229
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
SN - 0924-4247
ER -