SKU: 16479860645

2-BrSFX

Sale price$91.80 Regular price$102.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

2-BrSFXProduct Name Name: BrSFX Product Overview Spiroaromatic hydrocarbons are an important organic semiconductor construction unit. Their unique non planar spiroconjugation, cross conformation and steric hindrance effects can effectively improve the photoelectric properties and device stability of organic semiconductor materials. Spirofluorene xanthrene (SFX) one pan preparation method due to its advantages of three bonds, high efficiency and fast,

Product Name

Name:-BrSFX


Product Overview

Spiroaromatic hydrocarbons are an important organic semiconductor construction unit. Their unique non-planar spiroconjugation, cross conformation and steric hindrance effects can effectively improve the photoelectric properties and device stability of organic semiconductor materials. Spirofluorene xanthrene (SFX) one-pan preparation method due to its advantages of three bonds, high efficiency and fast, overcome the problems of lengthy synthesis route and expensive raw materials, and become a new generation of steric resistance construction unit, which has been widely used in frontier fields such as organic luminescence, organic laser, field effect transistor, perovskite solar cells, etc. It has become a model of green organic semiconductors. Due to the connection of spirofluorene and oxanthracene, the conjugated system of the entire molecule is extended, and the electrons can delocalize in a larger range, which has an important impact on its optical and electrical properties. Spirofluorenoxanthracene molecule has certain steric hindrance. The helical structure of spirofluorene and the large volume of oxanthracene make the molecules exhibit a specific arrangement in space. This steric hindrance affects the interactions between molecules and the way materials are stacked. For example, in crystal structures, molecules may adopt specific orientations that affect properties such as optical anisotropy of the material.


Technical Parameter

 

Purity:9.9%

 

Product Features

 

Optical properties: It has unique luminous characteristics. Due to its extended conjugated system, its absorption and emission spectra differ from those of spirofluorene or oxanthrene alone. Generally, it has a strong absorption in the ultraviolet to visible region, and the emission spectrum covers a certain range of visible wavelengths. For example, its emission wavelength may range from blue to yellow-green, depending on factors such as the structure of the molecule and substituents.


The fluorescence quantum yield is relatively high. Compared with some common organic luminescent materials, the fluorescence quantum yield of spirofluorexanthrene can reach a higher level, which makes it have a potential application in the field of luminescence. For example, in some cases, its fluorescence quantum yield can exceed 30%, which can effectively convert absorbed energy into light energy emitted.


Electrical properties: As an organic semiconductor material, spirofluorenoxanthrene has a certain carrier transport capacity. Conjugated systems in its molecular structure contribute to the transport of electrons and holes. Electrical properties such as carrier mobility can be adjusted through appropriate molecular design and material treatment. For example, by introducing suitable substituents to improve the packing mode of molecules and charge transport channels, the carrier mobility is increased. The energy band structure can also be regulated. The band gap can be adjusted by chemical modification, such as changing the type and position of substituents. This is very important for its application in different optoelectronic devices, enabling it to adapt to different operating conditions and performance requirements.

 

Application Fields

 

 

Organic light-emitting diode (OLED) : Because of its good luminous performance, spirofluorexanthrene can be used as the luminous material of OLED. It can be used in the light-emitting layer of OLeds by doping or as the main material.


Organic field effect transistor (OFET) : As an organic semiconductor material, spirofluorexanthrene can be used to prepare the active layer of OFET. The properties of OFET, such as carrier mobility and switching ratio, can be improved by optimizing its molecular structure and film preparation process.


Bioimaging and sensing: The fluorescence properties of spirofluorexanthrene make it potentially useful in bioimaging and sensing. It can be used as a fluorescent probe to label biomolecules or cells, and observe physiological and pathological processes in organisms through fluorescence imaging technology.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16479860645

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 2309 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
MK
Massapequa, US
★★★★★ 5
Pricey, but worth it.
Coola products were included in a swag bag for a work vacation at a resort & I’ve not looked back. (The smell of the body spray sunscreen made me wish I could eat it, tbh.) This product has become my daily sunscreen as it’s the only one I’ve tried that doesn’t cause my skin to break out. I love the natural ingredients in their products AND that it doesn’t add to reef barrier breakdown. I only wish the brand wasn’t so pricey, but the benefits are worth it to me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Best sunscreen ever
Best sunscreen ever, never get burned when I use it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
A
Verified Purchase
Alana D
West Palm Beach, US
★★★★★ 5
Terrific sunscreen!
I found out about the Sun screen from a youtuber who does Amazon favorites videos. At first, I thought she was nuts for advertising a $32 sun screen especially for the size it is. I really wanted an everyday sun screen that wasn't thick and goopy. I don't mind of I'm going to the beach or pool but a lot of them are a little much for every day use. Im trying to be better at protecting my face.. When I came across this I decided to splurge and try it. I hate to admit it but I'm so glad I did! It has a slight scent but nothing over powering at all. Its truly a weightless sunscreen that is perfect! I put it on before work and it doesn't make me look greasy or anything. You could probably use it under make up of you really wanted to, I just haven't tried it yet. My only complaint is the price but I haven't tried anything as good ad this! I've seen Ulta have sales on it every once in a while.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2020
B
Verified Purchase
Brianna B
Bozeman, US
★★★★★ 5
Soothing, refreshing, and effective for most uses
I found this sunscreen back when it was still reasonable priced ($10 for a bottle this size) and am now completely 100% addicted as the price continues to rise. Sigh. I don't use this anywhere but my face and neck. Putting this on my face makes me go "ahhhhh". I break out easily, burn easily, and haaaate the feeling of sunscreen. Previously, I used Neutrogena 45 or 55+ ultra-sheer dry touch, and I still use that sometimes when I expect more intense exposure, but the Coola cucumber just feels so much better. I don't actually know if I would burn in cases where I still use my other 45+ sunscreen since I haven't taken the chance. I use Coola for 30-45 minute pool sessions, and hikes between 30-90 minutes. I haven't trusted it for things like skiing, 3 hour hikes, or boating where you get intense sun and a lot of moisture exposure. Buy if you want a lightweight, refreshing face sunscreen for walks in the sun, lounging poolside, or mild-moderate hikes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2020
D
Verified Purchase
Daniel
West Palm Beach, US
★★★★★ 4
Everyday sunblock
It’s an okay sunblock, light weight , and smells good . the only problem is that the expiration date is too soon that is 10/2021
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2021

recommand products