Abstract
Simultaneous sensing and visualization of pressure provides a useful platform to obtain information about a pressurizing object, but the fabrication of such interactive displays at the single-device level remains challenging. Here, we present a pressure responsive electroluminescent (EL) display that allows for both sensing and visualization of pressure. Our device is based on a two-terminal capacitor with six constituent layers: top electrode/insulator/hole injection layer/emissive layer/electron transport layer/bottom electrode. Light emission upon exposure to an alternating current field between two electrodes is controlled by the capacitance change of the insulator arising from the pressure applied on top. Besides capacitive pressure sensing, our EL display allows for direct visualization of the static and dynamic information of position, shape, and size of a pressurizing object on a single-device platform. Monitoring the pressurized area of an elastomeric hemisphere on a device by EL enables quantitative estimation of the Young's modulus of the elastomer, offering a new and facile characterization method for the mechanical properties of soft materials.
| Original language | English |
|---|---|
| Pages (from-to) | 13757-13766 |
| Number of pages | 10 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 10 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2018 Apr 25 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
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Electroluminescent Pressure-Sensing Displays. / Lee, Seung Won; Cho, Sung Hwan; Kang, Han Sol; Kim, Gwangmook; Kim, Jong Sung; Jeong, Beomjin; Kim, Eui Hyuk; Yu, Seunggun; Hwang, Ihn; Han, Hyowon; Park, Tae Hyun; Jung, Seok Heon; Lee, Jin Kyun; Shim, Wooyoung; Park, Cheolmin.
In: ACS Applied Materials and Interfaces, Vol. 10, No. 16, 25.04.2018, p. 13757-13766.Research output: Contribution to journal › Article
TY - JOUR
T1 - Electroluminescent Pressure-Sensing Displays
AU - Lee, Seung Won
AU - Cho, Sung Hwan
AU - Kang, Han Sol
AU - Kim, Gwangmook
AU - Kim, Jong Sung
AU - Jeong, Beomjin
AU - Kim, Eui Hyuk
AU - Yu, Seunggun
AU - Hwang, Ihn
AU - Han, Hyowon
AU - Park, Tae Hyun
AU - Jung, Seok Heon
AU - Lee, Jin Kyun
AU - Shim, Wooyoung
AU - Park, Cheolmin
PY - 2018/4/25
Y1 - 2018/4/25
N2 - Simultaneous sensing and visualization of pressure provides a useful platform to obtain information about a pressurizing object, but the fabrication of such interactive displays at the single-device level remains challenging. Here, we present a pressure responsive electroluminescent (EL) display that allows for both sensing and visualization of pressure. Our device is based on a two-terminal capacitor with six constituent layers: top electrode/insulator/hole injection layer/emissive layer/electron transport layer/bottom electrode. Light emission upon exposure to an alternating current field between two electrodes is controlled by the capacitance change of the insulator arising from the pressure applied on top. Besides capacitive pressure sensing, our EL display allows for direct visualization of the static and dynamic information of position, shape, and size of a pressurizing object on a single-device platform. Monitoring the pressurized area of an elastomeric hemisphere on a device by EL enables quantitative estimation of the Young's modulus of the elastomer, offering a new and facile characterization method for the mechanical properties of soft materials.
AB - Simultaneous sensing and visualization of pressure provides a useful platform to obtain information about a pressurizing object, but the fabrication of such interactive displays at the single-device level remains challenging. Here, we present a pressure responsive electroluminescent (EL) display that allows for both sensing and visualization of pressure. Our device is based on a two-terminal capacitor with six constituent layers: top electrode/insulator/hole injection layer/emissive layer/electron transport layer/bottom electrode. Light emission upon exposure to an alternating current field between two electrodes is controlled by the capacitance change of the insulator arising from the pressure applied on top. Besides capacitive pressure sensing, our EL display allows for direct visualization of the static and dynamic information of position, shape, and size of a pressurizing object on a single-device platform. Monitoring the pressurized area of an elastomeric hemisphere on a device by EL enables quantitative estimation of the Young's modulus of the elastomer, offering a new and facile characterization method for the mechanical properties of soft materials.
UR - http://www.scopus.com/inward/record.url?scp=85045904039&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045904039&partnerID=8YFLogxK
U2 - 10.1021/acsami.8b01790
DO - 10.1021/acsami.8b01790
M3 - Article
AN - SCOPUS:85045904039
VL - 10
SP - 13757
EP - 13766
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 16
ER -