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Facile Fabrication of Micro-Nano Structured Triboelectric Nanogenerator with High Electric Output.

Zhang F, Li B, Zheng J, Xu C - Nanoscale Res Lett (2015)

Bottom Line: In this article, a new method is used to fabricate a high-performance triboelectric nanogenerator (TENG), which is convenient and cost-effective.The short-circuit current (I s) and open-circuit voltage (V o) of the TENG are up to 0.4343 mA and 236.8 V, respectively, and no significant change is observed by applying different frequencies of external impact forces from 1 to 10 Hz.Finally, we successfully drive an electrochromic device (ECD) directly using TENG within just 2 min for the first time.

View Article: PubMed Central - PubMed

Affiliation: CAS Key Lab of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, People's Republic of China.

ABSTRACT
In this article, a new method is used to fabricate a high-performance triboelectric nanogenerator (TENG), which is convenient and cost-effective. A polyformaldehyde (POM) film with novel structures is prepared through electrospinning and is combined with a polytetrafluoroethylene (PTFE) film to assemble micro-nano structured TENG. The short-circuit current (I s) and open-circuit voltage (V o) of the TENG are up to 0.4343 mA and 236.8 V, respectively, and no significant change is observed by applying different frequencies of external impact forces from 1 to 10 Hz. Finally, we successfully drive an electrochromic device (ECD) directly using TENG within just 2 min for the first time.

No MeSH data available.


Working mechanism of TENG
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Fig2: Working mechanism of TENG

Mentions: The working mechanism of TENG is illustrated in Fig. 2. In the initial state, each layer of TENG is electrically quasi-neutral. After applying external compressive force for the first time, the arched TENG is deformed. The top sheet contacts the bottom one, and friction takes place between the contact surfaces because of surface roughness in microscale. As a result, the friction surfaces carry opposite electrostatic charges which will not bleed off or be neutralized immediately since both the polymer films and air are insulative. When removing the external force, the TENG tends to recover to arched state and the friction surfaces move apart. Meanwhile, the electric potential between the two electrodes varies with the relative displacement of the oppositely charged friction surfaces. Thus, there will be current in the load circuit until establishing potential equilibrium between the two electrodes. Applying the external force again breaks the former equilibrium and causes a reverse current to establish a new potential equilibrium. The mechanism is similar to a previously reported TENG [12]. Frequently applying and removing the external forces lead to more friction and cause the friction surfaces to come close and draw apart repeatedly, synchronized with the variance of electric potential difference between the two electrodes. Thus, there will be alternating pulsed current in the load circuit of the TENG.Fig. 2


Facile Fabrication of Micro-Nano Structured Triboelectric Nanogenerator with High Electric Output.

Zhang F, Li B, Zheng J, Xu C - Nanoscale Res Lett (2015)

Working mechanism of TENG
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4508282&req=5

Fig2: Working mechanism of TENG
Mentions: The working mechanism of TENG is illustrated in Fig. 2. In the initial state, each layer of TENG is electrically quasi-neutral. After applying external compressive force for the first time, the arched TENG is deformed. The top sheet contacts the bottom one, and friction takes place between the contact surfaces because of surface roughness in microscale. As a result, the friction surfaces carry opposite electrostatic charges which will not bleed off or be neutralized immediately since both the polymer films and air are insulative. When removing the external force, the TENG tends to recover to arched state and the friction surfaces move apart. Meanwhile, the electric potential between the two electrodes varies with the relative displacement of the oppositely charged friction surfaces. Thus, there will be current in the load circuit until establishing potential equilibrium between the two electrodes. Applying the external force again breaks the former equilibrium and causes a reverse current to establish a new potential equilibrium. The mechanism is similar to a previously reported TENG [12]. Frequently applying and removing the external forces lead to more friction and cause the friction surfaces to come close and draw apart repeatedly, synchronized with the variance of electric potential difference between the two electrodes. Thus, there will be alternating pulsed current in the load circuit of the TENG.Fig. 2

Bottom Line: In this article, a new method is used to fabricate a high-performance triboelectric nanogenerator (TENG), which is convenient and cost-effective.The short-circuit current (I s) and open-circuit voltage (V o) of the TENG are up to 0.4343 mA and 236.8 V, respectively, and no significant change is observed by applying different frequencies of external impact forces from 1 to 10 Hz.Finally, we successfully drive an electrochromic device (ECD) directly using TENG within just 2 min for the first time.

View Article: PubMed Central - PubMed

Affiliation: CAS Key Lab of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, People's Republic of China.

ABSTRACT
In this article, a new method is used to fabricate a high-performance triboelectric nanogenerator (TENG), which is convenient and cost-effective. A polyformaldehyde (POM) film with novel structures is prepared through electrospinning and is combined with a polytetrafluoroethylene (PTFE) film to assemble micro-nano structured TENG. The short-circuit current (I s) and open-circuit voltage (V o) of the TENG are up to 0.4343 mA and 236.8 V, respectively, and no significant change is observed by applying different frequencies of external impact forces from 1 to 10 Hz. Finally, we successfully drive an electrochromic device (ECD) directly using TENG within just 2 min for the first time.

No MeSH data available.