Perovskite quantum dots oleic acid and oleylamine coated, fluorescence λem 510 nm, 10 mg/mL in toluene – Sigma-Aldrich
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Synonyms
Cadmium free QDs, Fluorescent nanocrystals, Perovskite nanocrystals, QDs
Applications
For Perovskite quantum dots:
Perovskite quantum dots (QDs) of common formula CsPbX3 (X = Cl, Br, I) possess high photoluminescence efficiency and narrow emission and emit in the visible spectral regime. Perovskite QDs are cadmium free and the aforementioned properties render them suitable for applications in light emitting diodes (LEDs), lasers, liquid crystal displays (LCDs) etc.
Poly(3-hexylthiophene-2,5-diyl) – Sigma-Aldrich
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Synonyms
P3HT
General Description
Poly(3-hexylthiophene) (P3HT) is a regioregular semiconducting polymer. It is used in organic electronics primarily because of its regular end-to-end arrangement of side chain, which allows efficient p- p stacking of the conjugated backbones. On account of the alkyl side group, P3HT is rendered hydrophobic in neutral state. Solution-to-solid phase transformation and thin film formation of poly(3-hexylthiophene) (P3HT) was reported in a study.
Poly(3-hexylthiophene-2,5-diyl) (P3HT) is a poly(alkylthiophene) based semiconducting polymer that is hydrophobic at neutral state and has π-π conjugation in its backbone. It has a hole mobility is in the range of 10-3-10-1 cm2V-1s-1 and is commonly used in the development of field-effect transistors (FETs) for a wide range of applications.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with “Design for energy efficency”. Hole transport organic materials allow perfect energy level alignment with the absorber layer and therefore efficient charge collection, are prone to degradation in ambient conditions.
Applications
For the characterization and solid-state properties of this polymer, see J. Am. Chem. Soc. .
P3HT, an electron donor that acts as a semiconducting active layer in combination with an electron acceptor like fullerene derivative (6,6)-phenyl C61-butyric acid methylester (PCBM), can be used to fabricate bulk heterojunction (HJT) based organic solar cells (OSCs).[4][5][6][7] Volatile organic compounds (VOCs) and electric sensor devices can be developed by using Langmuir-Schaefer (LS) films of P3HT and poly(3-octylthiophene)(P3OT). It can also be used with polystyrene to process a nano-scaled polymeric coating through spray coating onto carbon nanotube (CNT) powders.
Poly(3-hexylthiophene-2,5-diyl) may be used to fabricate ZnO nanowire arrays based photodiode. Regio- regular poly(3-hexylthiophene-2,5-diyl) may find extensive use as a semiconducting layer in organic thin film field effect transistor (FETs).
Rechargeable battery electrodes, electrochromic devices, chemical and optical sensors, light-emitting diodes, microelectrical amplifiers, field-effect transistors and non-linear optical materials.
Features & Benefits
Greater than 90% head-to-tail regiospecific conformation.
Good processibility, environmental stability and electroactivity.
PTB7, average Mw 80,000-200,000, PDI ≤3.0 – Sigma-Aldrich
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Synonyms
Poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl})
General Description
PTB7 is a semiconducting polymer used in organic photovoltaics with an energy efficiency of 9.15%. It can act as an electron donor with narrow optical band gaps and excellent π-π conjugation while forming a nanocomposite with fullerenes.[1][2]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to enabling category of greener alternatives thus aligns with “Design for energy efficency”. Hole transport organic materials allow perfect energy level alignment with the absorber layer and therefore efficient charge collection, are prone to degradation in ambient conditions.
Applications
OPV Device Structure: ITO/PEDOT:PSS/PTB7 :PC71BM/Ca/Al
- JSC = 14.9 mA/cm2
- VOC = 0.75 V
- FF = 0.69
- PCE = 7.4%
Tin(II) iodide, AnhydroBeads™, −10 mesh, 99.99% trace metals basis (Sigma-Aldrich)
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Synonyms
Stannous iodide, Tin diiodide
General Description
Tin(II) iodide AnhydroBeads™−10 mesh, 99.99% trace metals basis, comes as beads with red to purple in colour with applications in semiconductor research, solar cells, material science, chemical synthesis, catalysis, and photonics. Tin (II) iodide is widely used as a precursor to prepare lead-free, non-toxic hybrid perovskite materials. Tin-based perovskites show excellent electrical and optical properties such as high charge carrier mobility, absorption coefficient, and small exciton binding energies.
Applications
Tin(II) iodide (SnI₂) is a versatile compound with a range of applications in research, particularly in semiconductor technology, solar cells, chemical synthesis, catalysis, etc. SnI₂ is used in perovskite solar cells as a precursor for tin-based perovskites or as an additive to improve device stability and performance. The addition of a small amount of 2D tin film induces well-defined orientation and superior crystallinity in formamidinium tin iodide (FASnI3) films. This results in the longer life of charge carriers and improves the performance of the hybrid perovskite solar cell (HPSC). It can also be used to prepare solution-processable lamellar hybrid
[CH3(CH2)11NH3]SnI3semiconductor.Its catalytic properties can be leveraged to develop new synthetic methodologies such as reductions, cyclisations, and coupling reactions. It is suitable to be use in photonic applications, including sensors and photovoltaic devices. It is used as a deposition material for preparing thin films for use in electronic and optoelectronic devices. Techniques like chemical vapour deposition (CVD) and physical vapour deposition (PVD) are explored for creating high-quality films. In a study, it is found that when a novel catalytic system comprised of tin sulfide (SnS) nanoflakes as a solid catalyst and tin iodide (SnI2) as a dual-functional electrolyte additive, the Li-air battery enables operating at high current rates up to 10 000 mA g−1 (corresponding to 1 mA cm−2). Also it has been observed that that the role of the SnI2 is not only reacting with the lithium anode to provide protection but reducing the charge potential by promoting catalytic decomposition of the Li2O2.
Features & Benefits
Tin(II) iodide AnhydroBeads™, −10 mesh, 99.99% trace metals basis is designed and tested under stringent dry manufacturing conditions to ensure low water content, trace metal purity of 99.99%, and low surface area-to-volume ratio. The salt possesses excellent electrical and optical properties such as high charge carrier mobility, absorption coefficient, and small exciton binding energies. The advantages of our AnhydroBeads™ salts are as follows:
1) Reduced uptake rate of environmental moisture minimises caking, dusting, and static buildup for repeated easy handling.
2) Higher crucible packing densities and lower volatility in high-temperature solid-state procedures.
3) Easier pneumatic loading of salts to sample chambers due to fewer clogging issues associated with powdered salt counterparts.
Legal Information
AnhydroBeads is a trademark of Sigma-Aldrich Co. LLC
| CAS Number | 10294-70-9 |
| Empirical Formula | SnI2 |
| Molecular Weight | 372.52 |
| Reaction suitability | Core: Tin |
| Assay | 99.99% trace metals basis |
| Impurities | ≤150.0 ppm Trace Metal Analysis |
| Particle size | −10 mesh |
Titania paste, transparent – Sigma-Aldrich
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Synonyms
Greatcell Solar®, TiO2 paste
CAS No
–
General Description
Transparent titania (TiO2) paste is a visual range transparent paste that has a large surface area to volume ratio. The average diameter of the TiO2 nanoparticle within the paste is 20nm and the transparent sintered films are around 6-7 μm thick per printed layer.
Application
TiO2 paste forms a screen printed film which is majorly used as a conduction band on indium tin oxide (ITO) or fluorine doped tin oxide (FTO) based substrates for dye sensitized solar cells and for major photovoltaic based applications.
Use Transparent Titania Paste in applications that require a transparent sintered titania film with a large surface/volume ratio.
Transparent Titania Paste is formulated to yield sintered film thicknesses of 6-7μm when screen printed with a 43T mesh. Transparent Titania Paste has highly dispersed and stable anatase nanoparticles.
It is optimised for screen printing using a synthetic 43T mesh screen (or similar). After drying; this paste must be fired at or above 500°C. This results in a transparent sintered layer; with a film thickness of approximately 6-7μm for one printed layer and ~12μm for two printed layers; when using a 43T mesh screen.
The paste exhibits optimal rheological properties that provide good surface uniformity and contains organic binders specially formulated to provide versatile porosity suitable for a range of dye/electrolyte systems.
Storage: Store in the dark at 20°C
Legal Information
Product of Greatcell Solar Materials Pty Ltd.Greatcell Solar is a registered trademark of Greatcell Solar Materials Pty Ltd.
Greatcell Solar is a registered trademark of Greatcell Solar
Titanium dioxide, anatase, nanopowder, <25 nm particle size, 99.7% trace metals basis - Sigma-Aldrich
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Synonyms
Nanotitania, TiO₂ anatase, TiO2 nanopowder, Titania, Titanium(IV) oxide, anatase, Titanium dioxide
CAS No
1317-70-0
General Description
Our titanium(IV) oxide, anatase nanopowder is a fine white powder composed of titanium dioxide nanoparticles with a particle size less than 25 nm. Anatase is a metastable polymorph of TiO2, which is less hard and less dense than the rutile polymorph. Optically, anatase nanopowder has a lower refractive index, absorbs less UV light, and exhibits greater photocatalytic activity than the rutile polymorph. Consequently, anatase is often preferred in applications where photocatalytic activity is desired, such as self-cleaning surfaces and solar cells.
Application
Titania paste may be used as a transparent coating for self cleaning glass. Low optical scattering titania-acrylate nanocomposites have been reported. Metal contacts in solar cells based on titanium dioxide and di-(isothiocyanate)-bis-(2,2′-bipyridyl-4,4′-dicarboxylate)ruthenium(II) have been studied.
Titanium dioxide, mixture of rutile and anatase nanoparticles, <150 nm particle size - Sigma-Aldrich
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Synonyms
Titania, Titanium(IV) oxide, mixture of rutile and anatase, Titanium dioxide
CAS No
13463-67-7
General Description
Titanium(IV) oxide, mixture of rutile and anatase (TiO2) is a titania based nanoparticle solution that is dispersed in water.
Application
TiO2 suspensions can be used for a variety of applications such as:
- photo-catalytic applications
- cosmetics, textile, and paints
- fabrication of flexible humidity sensors
Titanium dioxide, nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis – Sigma-Aldrich
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Synonyms
Nanotitania, TiO₂ nanopowder, TiO2 nanopowder, Titanium(IV) oxide, Titania, Titanium dioxide
CAS No
13463-67-7
General Description
Our titanium(IV) oxide nanopowder is a fine white powder composed of titanium dioxide nanoparticles with an average particle size of 21 nm, resulting in a high surface area of 35-65 m2/g. Two main physico-chemically distinct polymorphs of TiO2 are anatase and rutile. Anatase has a higher photocatalytic activity than rutile but is thermodynamically less stable.
Application
TiO2 nanoparticles were used to study the photocatalytic hexane vapor degradation. It has been used as a sorbent for arsenic removal. TiO2 nanoparticles are suitable for remediation of antiseptic components in wastewater by photocatalysis. It has also been used to study adsorption of DNA oligonucleotides by titanium dioxide nanoparticles.
Zinc oxide ink for inkjet printing – Sigma-Aldrich
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Synonyms
Helios′Ink H-SZ01034 semiconductive ink, Zinc oxide dispersion, Zinc oxide suspension, ZnO ink, ZnO nanoparticle ink
CAS No
–
General Description
Helios′Ink H-SZ01034, semi conductive ink developed for the printed electronics is particularly well suited for OPV and PV. Helios′Ink H-SZ01034, semi conductive ink shows great performance on Drop on Demand (DOD) inkjet printers, blade coating, and spin coating and is compatible with various flexible substrates (polyimide, PET, PET/ITO, etc.) but also Glass/ITO.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with “Design for energy efficency”. Click here for more information.
Features & Benefits
Product benefits:
- Easy deposition under atmospheric conditions (temperature and pressure).
- Good optical performances (visible light transmission >90%).
- Non CMR ink.
- Compatible with ITO layer and Ag NWs layer.
- Compatible with most flexible substrates.
- Low drying temperature making printing onto flexible substrates possible.
- Thin layers are obtained (20 nm) with low roughness (RMS = 3±1 nm).
Preparation Note
Typical processing guideline:
- Can be homogenized for 5 minutes in an ultrasonic bath in order to get rid of any aggregates.
- Filtration on a 0.45 μm PTFE filter syringe to avoid any nozzles clogging.
- Drying conditions: Oven, IR oven, vacuum oven.
- Clean-up solution: Ethanol/Acetone.
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Product of Genes′Ink.
Zinc oxide ink for spin coating/slot-die coating – Sigma-Aldrich
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Synonyms
Helios′Ink H-SZ41029 semiconductive ink, Zinc oxide dispersion, Zinc oxide suspension, ZnO ink, ZnO nanoparticle ink
CAS No
–
General Description
Our Zinc oxide ink for spin coating/slot-die coating is a semi conductive ink developed for the printed electronics is particularly well suited for flexible OLED and OPV.
Features & Benefits
Product benefits:
- Easy deposition under atmospheric conditions (temperature and pressure).
- Good optical performances (visible light transmission >90%).
- Non CMR ink.
- Compatible with ITO layer and Ag NWs layer.
- Compatible with most flexible substrates.
- Low drying temperature making printing onto flexible substrates possible.
- Thin layers are obtained (20 nm) with low roughness (RMS = 3±1 nm).
Preparation Note
Typical processing guideline:
- Can be homogenized for 5 minutes in an ultrasonic bath in order to get rid of any aggregates.
- Drying conditions: Oven, IR oven, vacuum oven.
- Clean-up solution: Ethanol/Acetone.
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Product of Genes′Ink.
Zinc oxide nanoparticle ink – Sigma-Aldrich
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Synonyms
Avantama N-10, Nanograde N-10, Zinc oxide suspension, ZnO dispersion, ZnO ink, ZnO nanoparticle ink
CAS No
–
General Description
Zinc oxide nanoparticle ink are nanoparticle-based printing inks allowing processing temperatures of 80°C. Zinc oxide nanoparticle ink is an electron selective interface layer ink containing zinc oxide (ZnO) nanoparticles in isopropanol. ZnO nanoparticle ink functions well as electron extraction layer (EEL) materials in solar cells.
Applications
This ZnO nanoparticle ink is for slot-dye, spin-coating, and doctor blading for the use as electron transport layer in printed electronics. This ZnO nanoparticle ink is universally applicable in normal and inverted architecture.
Annealing temperature <100°C.
Other Notes
Prior to application: Ultrasonicate and (optionally) filter through 0.45 μm PTFE filter
Post-treatment: Annealing of deposited ZnO films at 80°C – 120°C
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Product of Avantama Ltd.
Zinc oxide, dispersion, nanoparticles – Sigma-Aldrich
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Synonyms
Zinc monoxide, Zinc white
CAS No
1314-13-2
General Description
Zinc oxide, dispersion (ZnO) is a multi-function metal oxide with unique physio-chemical properties, which includes high chemical stability, broad range absorption spectra and high electrochemical characteristics. It can also be categorized as a semiconductor due to its high energy band width and high thermal stability that make it potentially useful in electronics and optoelectronics applications.
Features & Benefits
ZnO dispersions have piezo and pyroelectric properties that make it useful in the development of sensors, generators, and photo-catalysis. It has low toxicity and biocompatibility, which facilitate its applications in biomedicine.
