Silver nanowires-120-150 nm

Catalog	ACM7440224-1
CAS	7440-22-4
Structure
Description	diam. × L 120-150 nm × 20-50 μm, 0.5% (isopropyl alcohol suspension)
Synonyms	Silver nanofibers, Silver nanowhiskers, Silver nanowire
Molecular Weight	107.87
Molecular Formula	Ag
Canonical SMILES	[Ag]
InChI	1S/Ag
InChI Key	BQCADISMDOOEFD-UHFFFAOYSA-N
Density	0.779 g/mL at 25 °C
Application	Silver nanowires have been studied for use in electronic and biological applications including transparent conductors; and water sterilization . Silver nanowires have also been studied as plasmonic and as components in amorphous semiconductors.
Storage	Storage Class Code: 3 - Flammable liquids
Content	concentration: 0.5% (isopropyl alcohol suspension)
Fiber Diameter	120-150 nm
Form	liquid (suspension)
Length	20-50 μm
MDL Number	MFCD00003397
Packaging	25 mL in glass bottle
Type	nanowires

Case Study

Revolutionizing Flexible Electronics with Silver Nanowire Electrodes

Hu, Liangbing, et al. ACS nano 4.5 (2010): 2955-2963.

Challenge: For the field of high-performance flexible transparent conductive electrodes (TCEs), traditional indium tin oxide (ITO), while effective on rigid glass, suffers from brittleness, complex processing on flexible substrates, and limited infrared performance. A scalable, robust, high-performance ITO alternative was critically needed.
Solution: Development of scalable, transparent silver nanowire (Ag NW) electrodes as a superior alternative to ITO for flexible applications.
Key Results:
· Superior Optoelectronics: Achieved 20 Ω/sq @ ~80% specular transmittance (matching best flexible ITO). Achieved 8 Ω/sq @ 80% diffusive transmittance (visible range). 2x higher Near-Infrared (NIR) transmission vs. ITO. Enhanced light scattering (large diffusive-specular difference), boosting solar cell efficiency potential.
· Exceptional Flexibility: Outstanding robustness under bending on flexible substrates.
· Scalable Manufacturing: Coating process enables cost-effective, large-area production.
· Enhanced Conductivity: Demonstrated via electrochemical au coating at junctions (reduces resistance) and simple mechanical pressing (reduces junction resistance).

Enhancing Silver Nanowire Electrode Stability with TiO2 Sol-Gel Coating

Song, Tze-Bin, et al. ACS applied materials & interfaces 7.44 (2015): 24601-24607.

Challenge: Silver nanowire (Ag NW) networks offer significant advantages as transparent flexible electrodes but suffer from inherent limitations in thermal and chemical stability. Long-term reliability is compromised by silver atom diffusion and environmental corrosion.
Solution: Vacuum-free sol-gel-derived TiO2 coating to encapsulate and stabilize Ag NW networks. Conformal sol-gel coating yields improved stability while preserving electrical performance.
Key Results:
· Vacuum-Free Stabilization: Direct spinning of TiO2 sol-gel solution (TTIP/ethanol/ethanolamine = 1:10:0.1) onto Ag NW networks spun on the substrates. Post low-temperature baking (80 °C, 5 min) to evaporate solvents, allowing for integration onto flexible PET substrates.
· Thermal Robustness: Withstands 300°C annealing-critical for high-temperature device processing. Chemical Protection: Suppresses silver atom diffusion and prevents environmental corrosion. Mechanical Integrity: Maintains electrode conductivity under mechanical stress.
· Optimized Material Properties: Utilizes long Ag NWs (avg. 30 μm length, 90 nm diameter) for optimal conductivity. TiO2 conformally coats nanowires without requiring nanoparticle additives or aging.
· Validation in Application: Ag NW/TiO2 electrodes deployed as source/drain contacts in In2O3 thin-film transistors (TFTs). Sustained electrical performance after 300°C annealing. Zero electrode degradation observed during operation. Outperformed nanoparticle-embedded composite electrodes.