Dual Polymer Complementarity Induced Truly Black Electrochromic Film and the Construction of Intelligent Eye-Protection Filters

Li, Jin; Cui, Jiankun; Lv, Xiaojing; Zhang, Ling; Xia, Minao; Dong, Juncheng; Ouyang, Mi; Zhang, Cheng

doi:10.1021/acsami.3c13407

Cited by 7 publications

(3 citation statements)

References 38 publications

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“…Remarkably, P2-b exhibits broadly and highly absorbing across the entire visible spectrum (Figure 1c). It exhibits absorption that is both broader and more intense than what has been previously reported [4][5][6][27][28][29][30][31][32][33][34] . This spectral behavior suggests that the material has been engineered to absorb light across the entire visible wavelength range, which is ideal for applications requiring e cient light harvesting, such as photovoltaic cells or light-sensitive sensors.…”

Section: Resultsmentioning

confidence: 84%

Unlocking the Full Spectrum: A Paradigm Shift in Electrochromic Devices with High-Performance Black Conjugated Polymers

Chen,

Tong,

Rao

et al. 2024

Preprint

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The black-to-transparent electrochromism is hailed as the "Holy Grail" of organic optoelectronics. However, designing black electrochromic (EC) materials that fully absorb in the visible light region remains challenging. Electroactive materials that simultaneously possess excellent cyclic stability, fast switching times, and high coloration efficiency are extremely rare. In this work, copolymers capable of fully absorbing across the entire visible spectrum have been successfully designed through judicious selection of four types of monomers. We introduce two types of polar side chains, which synergistically improve the ionic conductivity of copolymer, thereby enhancing the performance of electrochromic devices(ECDs). ECDs exhibit unprecedentedlong-term cyclic stability, surpassing all previously reported high cyclic stability devices with over 126,786 cycles. Additionally, they achieve a coloration efficiency of 1273 cm²/C, which exceeds that of every high coloration efficiency ECDs present so far, along with fast coloring/bleaching times of 0.82 s/0.86 s. This study presents a new strategy for the design and synthesis of high-performance black electrochromic copolymers.

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Section: Resultsmentioning

confidence: 84%

Unlocking the Full Spectrum: A Paradigm Shift in Electrochromic Devices with High-Performance Black Conjugated Polymers

Chen,

Tong,

Rao

et al. 2024

Preprint

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“…The interest of researchers in investigating multifunctional conductive polymers was piqued by the rapid advancement of smart-technology methodologies. − Conductive polymer materials, such as electrode materials, electrochromic (EC) materials, electrofluorochromic (EFC) materials and devices, , energy-saving smart windows, − electromagnetic shielding materials, sensing materials, − and light-emitting diodes, − have been among the most discussed materials for the past few years due to their numerous practical applications.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Applications of D−π–A-Type Poly Schiff Bases for Electrochromic, Electrofluorochromic Materials, and Organic Cathodes for Aqueous Zinc Ion Batteries

Chu,

You,

Liang

et al. 2024

ACS Appl. Polym. Mater.

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Based on triphenylamine (TPA) and aromatic diamines, two multifunctional donor−π−acceptor (D−π−A) conjugated poly-Schiff bases (PSBs) were synthesized and subsequently tested and analyzed. The aforementioned conjugated PSBs exhibit electrochromic (EC) and electrofluorochromic (EFC) features and can be utilized as cathode electrode materials for aqueous Zn-ion batteries (AZIBs). Both polymer films, PTTB-1 and PTTB-2, show good EC and EFC properties, excellent dissolution processability, thermal stability, and reversible yellow-to-violet color changes in the UV−vis region. Between them, better optical contrast (46%), a fast response time (2.8 s/ 8.2 s), a high coloring efficiency (CE = 310 cm 2 C −1 ), and good cycling stability (10% attenuation over 2000 s of cycling) are all displayed by the PTTB-2 polymer. PTTB-1 and PTTB-2 present excellent EFC properties and solvatochromic effects. Full batteries constructed using a zinc anode, PSB cathodes, and 2 mol L −1 Zn(CF 3 SO 3 ) 2 aqueous solution show better rate performance, quicker reaction kinetics, and high cycling stability. The specific capacities of PAZIB-1 and PAZIB-2 reach 143 and 150 mA h g −1 , respectively, at a current density of 0.1 A g −1 . Furthermore, the specific capacities can still reach 93 and 102 mA h g −1 at a high current density of 6 A g −1 . Surprisingly, the full batteries exhibit outstanding cycling stability for long-term cycling (6 A g −1 , >5000 cycles). These innovative PSB materials, which integrate several functionalities, present more opportunities for the development of EC displays, AZIBs, sensing materials, and energy-efficient smart windows.

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“…A variant of this design, the complementary ECD (CECD) involves an extra EC layer on the bare TCE to enhance the optical contrast via a complementary coloration mechanism. 9–14…”

Section: Introductionmentioning

confidence: 99%

Complementary electrochromic device via a scalable solution process: a step towards affordable and energy-efficient smart windows

Dutta,

Mondal,

Saha

et al. 2024

J. Mater. Chem. C

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Dual Polymer Complementarity Induced Truly Black Electrochromic Film and the Construction of Intelligent Eye-Protection Filters

Cited by 7 publications

References 38 publications

Unlocking the Full Spectrum: A Paradigm Shift in Electrochromic Devices with High-Performance Black Conjugated Polymers

Unlocking the Full Spectrum: A Paradigm Shift in Electrochromic Devices with High-Performance Black Conjugated Polymers

Multifunctional Applications of D−π–A-Type Poly Schiff Bases for Electrochromic, Electrofluorochromic Materials, and Organic Cathodes for Aqueous Zinc Ion Batteries

Complementary electrochromic device via a scalable solution process: a step towards affordable and energy-efficient smart windows

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