The current investigation offers an innovative synthetic solution regarding electrochromic(EC)and energy storage applications by exploring phenoxazine(POZ)moiety.Subsequently,three POZ-based polymers(polyimide,polyazo...The current investigation offers an innovative synthetic solution regarding electrochromic(EC)and energy storage applications by exploring phenoxazine(POZ)moiety.Subsequently,three POZ-based polymers(polyimide,polyazomethine,and polyamide)were synthesized to ascertain the superior performer.The polyamide exhibited remarkable attributes,including high redox stability during 500 repetitive CVs,optical contrast of 61.98%,rapid response times of 1.02 and 1.38 s for coloring and bleaching,EC efficiency of 280 cm^(2)C^(-1).and decays of the optical density and EC efficiency of only 12.18%and 6.23%after 1000 cycles.Then,the energy storage performance of polyamide PA was tested,for which the following parameters were obtained:74.7 F g^(-1)(CV,scan rate of 10 mV s^(-1))and 118 F g^(-1)(GCD,charging current of 0.1 A g^(-1)).Then,the polyamide was tested in EES devices,which yielded the following EC parameters:an optical contrast of 62.15%,response times of 9.24 and 5.01 s for coloring and bleaching,EC efficiency of 178 cm^(2)C^(-1),and moderate decays of 20.25%and 23.24%for the optical density and EC efficiency after 500 cycles.The energy storage performance included a capacitance of 106 F g^(-1)(CV,scan rate of 0.1 mV s^(-1))and 9.23 F g^(-1)(GCD,charging current of 0.1 A g^(-1)),capacitance decay of 11.9%after500 cycles,and 1.7 V retention after 2 h.Also,two EES devices connected in series powered a 3 V LED for almost 30 s.展开更多
文章在氧化铟锡(indium tin oxide,ITO)玻璃上用反应磁控溅射法制备了氮掺杂WO_3薄膜和TiO_2薄膜,并封装制成电致变色器件。用X-ray衍射仪、原子力显微镜、X射线光电子能谱仪对薄膜的结构、形貌、成分和结合键进行表征;采用直流稳压电...文章在氧化铟锡(indium tin oxide,ITO)玻璃上用反应磁控溅射法制备了氮掺杂WO_3薄膜和TiO_2薄膜,并封装制成电致变色器件。用X-ray衍射仪、原子力显微镜、X射线光电子能谱仪对薄膜的结构、形貌、成分和结合键进行表征;采用直流稳压电源和分光光度计对器件的透光变色性能进行测试。结果表明:制备的掺氮WO_3薄膜为非晶态,其非晶衍射包的峰位随着含N量的增加而移动;随着WO_3薄膜中含N量的升高,表面粗糙度增大,器件在着色态透光率降低;掺氮WO_3薄膜中W、O分别以W^(6+)和O^(2-)存在,而N以中性价态、代换O位与W键合以及表面吸附3种状态存在。当掺氮量为2.80%时,电致变色器件调制幅度最大,适用于节能玻璃。展开更多
基金supported by a grant of the Ministry of Research,Innovation and Digitization,CNCS–UEFISCDI,project number PNIII-P1-1.1-TE-2021-1110PNCDI III,contract number TE 83/2022,and project number PN-III-P2-2.1-PED-2019-3520PNCDI III,contract number 438PED/2020。
文摘The current investigation offers an innovative synthetic solution regarding electrochromic(EC)and energy storage applications by exploring phenoxazine(POZ)moiety.Subsequently,three POZ-based polymers(polyimide,polyazomethine,and polyamide)were synthesized to ascertain the superior performer.The polyamide exhibited remarkable attributes,including high redox stability during 500 repetitive CVs,optical contrast of 61.98%,rapid response times of 1.02 and 1.38 s for coloring and bleaching,EC efficiency of 280 cm^(2)C^(-1).and decays of the optical density and EC efficiency of only 12.18%and 6.23%after 1000 cycles.Then,the energy storage performance of polyamide PA was tested,for which the following parameters were obtained:74.7 F g^(-1)(CV,scan rate of 10 mV s^(-1))and 118 F g^(-1)(GCD,charging current of 0.1 A g^(-1)).Then,the polyamide was tested in EES devices,which yielded the following EC parameters:an optical contrast of 62.15%,response times of 9.24 and 5.01 s for coloring and bleaching,EC efficiency of 178 cm^(2)C^(-1),and moderate decays of 20.25%and 23.24%for the optical density and EC efficiency after 500 cycles.The energy storage performance included a capacitance of 106 F g^(-1)(CV,scan rate of 0.1 mV s^(-1))and 9.23 F g^(-1)(GCD,charging current of 0.1 A g^(-1)),capacitance decay of 11.9%after500 cycles,and 1.7 V retention after 2 h.Also,two EES devices connected in series powered a 3 V LED for almost 30 s.
文摘文章在氧化铟锡(indium tin oxide,ITO)玻璃上用反应磁控溅射法制备了氮掺杂WO_3薄膜和TiO_2薄膜,并封装制成电致变色器件。用X-ray衍射仪、原子力显微镜、X射线光电子能谱仪对薄膜的结构、形貌、成分和结合键进行表征;采用直流稳压电源和分光光度计对器件的透光变色性能进行测试。结果表明:制备的掺氮WO_3薄膜为非晶态,其非晶衍射包的峰位随着含N量的增加而移动;随着WO_3薄膜中含N量的升高,表面粗糙度增大,器件在着色态透光率降低;掺氮WO_3薄膜中W、O分别以W^(6+)和O^(2-)存在,而N以中性价态、代换O位与W键合以及表面吸附3种状态存在。当掺氮量为2.80%时,电致变色器件调制幅度最大,适用于节能玻璃。
