《A Highly Stable and Tunable Visible-Near-IR Electrochromic All-in-One Gel Device》 was written by Ling, Huan; Su, Fengyu; Tian, Yanqing; Luo, Dan; Liu, Yan Jun; Sun, Xiao Wei. Category: bromides-buliding-blocks And the article was included in ChemPhotoChem in 2020. The article conveys some information:
Energy saving is a global topic of critical importance. Electrochromic devices (ECDs) could be used to control energy flow by modulating the light absorption reversibly upon application of a small potential bias. Herein, a visible-NIR dual-band ECD based on the viologen analog 4, 4′-(thiophene-2, 5-diyl) bis(1-methylpyridin-1-ium) diiodide (TMP) was assembled with a simple all-in-one configuration. The TMP-based gel ECD possesses high dynamic contrast (81.7 % at 570 nm, 68.6 % at 835 nm, 62.8 % at 910 nm and 55.3 % at 1046 nm), excellent cyclic stability (70.6 % of ΔT at 570 nm maintained after 25000 cycles at 1.4 V), and low power consumption (15.2 mJ/cm2 to complete the coloring process, 2.5 mW/cm2 to keep color and low transmittance). Remarkably, the absorption of visible and NIR light could be selectively adjusted by varying the coloring time. For comparison, a di-Me viologen (DMV)-based gel ECD was fabricated, and the SAR (structure-activity relationship) was established by cyclic voltammetry, d. functional theory (DFT) calculations, and other electrochromic performance parameters. In addition to this study using 2,5-Dibromothiophene, there are many other studies that have used 2,5-Dibromothiophene(cas: 3141-27-3Category: bromides-buliding-blocks) was used in this study.
2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes.Category: bromides-buliding-blocks
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary