Abstract
We fabricated highly conductive and stable silver nanocrystal (Ag NC) thin film electrodes with tunable work functions using an all-solution-based method involving sequential ligand exchange and gold (Au) coating processes. We studied the effect of the Au coating process on the ligand-exchanged Ag NC thin films and successfully demonstrated the formation of a thin Au layer on the surface of the Ag NCs. We investigated the morphological, structural, optical, chemical, and electrical properties of the Ag NC thin films before and after Au coating. The work function of the electrodes was precisely controlled by varying the treatment time and concentration of gold chloride trihydrate (HAuCl4·3H2O) solutions. The thermal stability of the Au coated Ag NC thin films in air was greatly enhanced, and an extremely low resistivity of 3.4 μΩcm was achieved. Taking advantage of this solution-based low-temperature process and using a minimal amount of Au for cost reduction, we fabricated all-NC-based high-performance flexible photodetectors.
| Original language | English |
|---|---|
| Pages (from-to) | 400-409 |
| Number of pages | 10 |
| Journal | Journal of Alloys and Compounds |
| Volume | 698 |
| DOIs | |
| Publication status | Published - 2017 Jan 1 |
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Keywords
- Flexible electrode
- Galvanic exchange
- Gold coating
- Silver nanocrystal
- Solution process
- Work function
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Designing highly conductive and stable silver nanocrystal thin films with tunable work functions through solution-based surface engineering with gold coating process. / Seong, Mingi; Lee, Seung Wook; Joh, Hyungmok; Lee, Woo Seok; Paik, Taejong; Oh, Soong Ju.
In: Journal of Alloys and Compounds, Vol. 698, 01.01.2017, p. 400-409.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Designing highly conductive and stable silver nanocrystal thin films with tunable work functions through solution-based surface engineering with gold coating process
AU - Seong, Mingi
AU - Lee, Seung Wook
AU - Joh, Hyungmok
AU - Lee, Woo Seok
AU - Paik, Taejong
AU - Oh, Soong Ju
PY - 2017/1/1
Y1 - 2017/1/1
N2 - We fabricated highly conductive and stable silver nanocrystal (Ag NC) thin film electrodes with tunable work functions using an all-solution-based method involving sequential ligand exchange and gold (Au) coating processes. We studied the effect of the Au coating process on the ligand-exchanged Ag NC thin films and successfully demonstrated the formation of a thin Au layer on the surface of the Ag NCs. We investigated the morphological, structural, optical, chemical, and electrical properties of the Ag NC thin films before and after Au coating. The work function of the electrodes was precisely controlled by varying the treatment time and concentration of gold chloride trihydrate (HAuCl4·3H2O) solutions. The thermal stability of the Au coated Ag NC thin films in air was greatly enhanced, and an extremely low resistivity of 3.4 μΩcm was achieved. Taking advantage of this solution-based low-temperature process and using a minimal amount of Au for cost reduction, we fabricated all-NC-based high-performance flexible photodetectors.
AB - We fabricated highly conductive and stable silver nanocrystal (Ag NC) thin film electrodes with tunable work functions using an all-solution-based method involving sequential ligand exchange and gold (Au) coating processes. We studied the effect of the Au coating process on the ligand-exchanged Ag NC thin films and successfully demonstrated the formation of a thin Au layer on the surface of the Ag NCs. We investigated the morphological, structural, optical, chemical, and electrical properties of the Ag NC thin films before and after Au coating. The work function of the electrodes was precisely controlled by varying the treatment time and concentration of gold chloride trihydrate (HAuCl4·3H2O) solutions. The thermal stability of the Au coated Ag NC thin films in air was greatly enhanced, and an extremely low resistivity of 3.4 μΩcm was achieved. Taking advantage of this solution-based low-temperature process and using a minimal amount of Au for cost reduction, we fabricated all-NC-based high-performance flexible photodetectors.
KW - Flexible electrode
KW - Galvanic exchange
KW - Gold coating
KW - Silver nanocrystal
KW - Solution process
KW - Work function
UR - http://www.scopus.com/inward/record.url?scp=85006957206&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006957206&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2016.12.157
DO - 10.1016/j.jallcom.2016.12.157
M3 - Article
AN - SCOPUS:85006957206
VL - 698
SP - 400
EP - 409
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -