Abstracts Book - IMRC 2018

• SB4-P016
TRANSPARENT HEATER BASED ON SOLUTION-PROCESS OF
INDIUM TIN OXIDE NANOPARTICLE INK OPTIMIZED WITH OXYGEN
VACANCY CONTROL
Chaewon Kim 1 , Sung-Jei Hong 2 , Mi Jung Lee 1
1 Kookmin University, Advanced Materials Engineering, Korea. 2 KETI, Display Materials and
Components Research Center, Korea.
A highly efficient transparent heater was intensively studied by optimizing a
solution-processed indium tin oxide nanoparticles (ITO-NPs) film with oxygen
vacancy control. To control the oxygen vacancy, ITO-NPs layers coated onto
glass substrates was annealed under various atmospheric conditions such as
vacuum, air, and argon (Ar). In result, all the solution-processed ITO films
achieved high transparency of more than 96% in the visible range (500–730 nm)
with respect to the glass substrate. As well, sheet resistance (Rs) decreased with
increasing temperature and the lowest Rs (309.4 Ω/â–¡) was achieved by
annealing at 600 °C under Ar atmosphere. X-ray photoelectron spectroscopy
(XPS) analysis revealed that the highest concentration of oxygen vacancies
occurred under Ar atmosphere resulting in the highest carrier mobility and
lowest Rs. Furthermore, application of the ITO-NPs films to transparent heater
was attempted. In result, when applying 15 V, ITO-NPs film annealed under Ar
atmosphere, showing the lowest Rs, exhibited the highest temperature (215.1
°C) among the samples. Also, highly thermal efficiency of 162.9 °C/(W/cm2) were
achieved the optimized sample. Thus, we suggest that the optimized ITO-NPs
film was applicable to highly efficient transparent heater
Acknowledgment:
This work was supported by the national research fund of Korea (
2013K14A3055679, 2015R1A5A7037615, 2016R1A2B1010327) and by the
Industrial Original Technology Development
Program of the Korea Evaluation Institute of Industrial Technology (KEIT) grant
funded by the Ministry of Knowledge Economy (No. 10048248).
Keywords: Transparent heater, ITO nanoparticles, solution process
Presenting authors email: mijung@kookmin.ac.kr