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Interface-Free Area-Scalable Self-Powered Electroluminescent System Driven by Triboelectric Generator.

Wei XY, Kuang SY, Li HY, Pan C, Zhu G, Wang ZL - Sci Rep (2015)

Bottom Line: Self-powered system that is interface-free is greatly desired for area-scalable application.The TEG provides high-voltage alternating electric output, which fits in well with the needs of the TFEL lamp.It is demonstrated that multiple types of TEGs are applicable to the self-powered system, indicating that the system can make use of diverse mechanical sources and thus has potentially broad applications in illumination, display, entertainment, indication, surveillance and many others.

View Article: PubMed Central - PubMed

Affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China.

ABSTRACT
Self-powered system that is interface-free is greatly desired for area-scalable application. Here we report a self-powered electroluminescent system that consists of a triboelectric generator (TEG) and a thin-film electroluminescent (TFEL) lamp. The TEG provides high-voltage alternating electric output, which fits in well with the needs of the TFEL lamp. Induced charges pumped onto the lamp by the TEG generate an electric field that is sufficient to excite luminescence without an electrical interface circuit. Through rational serial connection of multiple TFEL lamps, effective and area-scalable luminescence is realized. It is demonstrated that multiple types of TEGs are applicable to the self-powered system, indicating that the system can make use of diverse mechanical sources and thus has potentially broad applications in illumination, display, entertainment, indication, surveillance and many others.

No MeSH data available.


Related in: MedlinePlus

Electrical measurement results of the self-powered system when driven by two different kinds of TEGs.(a) Open-circuit voltage of the contact TEG (left column) and voltage applied onto the lamp (right column). Current (b) and induced charges (c) of the contact TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (d) Picture of the electroluminescence by the contact TEG (permission is granted from the logo copyright holder). (e) Open-circuit voltage of the rotary TEG (left column) and voltage applied onto the lamp (right column). Current (f) and induced charges (g) of the rotary TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (h) Picture of the electroluminescence by the rotary TEG (permission is granted from the logo copyright holder).
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f2: Electrical measurement results of the self-powered system when driven by two different kinds of TEGs.(a) Open-circuit voltage of the contact TEG (left column) and voltage applied onto the lamp (right column). Current (b) and induced charges (c) of the contact TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (d) Picture of the electroluminescence by the contact TEG (permission is granted from the logo copyright holder). (e) Open-circuit voltage of the rotary TEG (left column) and voltage applied onto the lamp (right column). Current (f) and induced charges (g) of the rotary TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (h) Picture of the electroluminescence by the rotary TEG (permission is granted from the logo copyright holder).

Mentions: Before connecting to an ACTFEL lamp, a contact TEG (3 cm by 3 cm), when triggered by repeated reciprocating mechanical impact, could generate an open-circuit voltage of 125 V (left column in Fig. 2a). In short-circuit condition, the pulsed current has amplitude of 3.7 μA (left column in Fig. 2b), which carries induced charges of 65 nC for each peak as measured by an electrometer (left column in Fig. 2c). After an ACTFEL lamp (1.5 cm by 1.5 cm) was used as a load, the voltage actually applied onto the ACTFEL lamp has the same shape of square wave (right column in Fig. 2a) as that of the open-circuit voltage. The reason for the apparently reduced amplitude in Fig. 2a is because the voltage across the ACTFEL lamp is determined by the capacitance of the lamp, which is different from that of the TEG. The current (right column in Fig. 2b) and induced charges (right column in Fig. 2c) that flow through the ACTFEL lamp have slightly dropped amplitude compared to those in the short-circuit condition. This is because the capacitor-structured ACTFEL lamp poses a capacitive reactance and produces opposition to the current flow across the lamp. The induced charges pumped onto the ACTFEL lamp by the TEG exert a sufficiently high electric field that can excite transient luminescence of the blue-green phosphor202122, as demonstrated in Fig. 2d.


Interface-Free Area-Scalable Self-Powered Electroluminescent System Driven by Triboelectric Generator.

Wei XY, Kuang SY, Li HY, Pan C, Zhu G, Wang ZL - Sci Rep (2015)

Electrical measurement results of the self-powered system when driven by two different kinds of TEGs.(a) Open-circuit voltage of the contact TEG (left column) and voltage applied onto the lamp (right column). Current (b) and induced charges (c) of the contact TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (d) Picture of the electroluminescence by the contact TEG (permission is granted from the logo copyright holder). (e) Open-circuit voltage of the rotary TEG (left column) and voltage applied onto the lamp (right column). Current (f) and induced charges (g) of the rotary TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (h) Picture of the electroluminescence by the rotary TEG (permission is granted from the logo copyright holder).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4559893&req=5

f2: Electrical measurement results of the self-powered system when driven by two different kinds of TEGs.(a) Open-circuit voltage of the contact TEG (left column) and voltage applied onto the lamp (right column). Current (b) and induced charges (c) of the contact TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (d) Picture of the electroluminescence by the contact TEG (permission is granted from the logo copyright holder). (e) Open-circuit voltage of the rotary TEG (left column) and voltage applied onto the lamp (right column). Current (f) and induced charges (g) of the rotary TEG in short-circuit condition (left columns) and those flowing through the lamp (right columns). (h) Picture of the electroluminescence by the rotary TEG (permission is granted from the logo copyright holder).
Mentions: Before connecting to an ACTFEL lamp, a contact TEG (3 cm by 3 cm), when triggered by repeated reciprocating mechanical impact, could generate an open-circuit voltage of 125 V (left column in Fig. 2a). In short-circuit condition, the pulsed current has amplitude of 3.7 μA (left column in Fig. 2b), which carries induced charges of 65 nC for each peak as measured by an electrometer (left column in Fig. 2c). After an ACTFEL lamp (1.5 cm by 1.5 cm) was used as a load, the voltage actually applied onto the ACTFEL lamp has the same shape of square wave (right column in Fig. 2a) as that of the open-circuit voltage. The reason for the apparently reduced amplitude in Fig. 2a is because the voltage across the ACTFEL lamp is determined by the capacitance of the lamp, which is different from that of the TEG. The current (right column in Fig. 2b) and induced charges (right column in Fig. 2c) that flow through the ACTFEL lamp have slightly dropped amplitude compared to those in the short-circuit condition. This is because the capacitor-structured ACTFEL lamp poses a capacitive reactance and produces opposition to the current flow across the lamp. The induced charges pumped onto the ACTFEL lamp by the TEG exert a sufficiently high electric field that can excite transient luminescence of the blue-green phosphor202122, as demonstrated in Fig. 2d.

Bottom Line: Self-powered system that is interface-free is greatly desired for area-scalable application.The TEG provides high-voltage alternating electric output, which fits in well with the needs of the TFEL lamp.It is demonstrated that multiple types of TEGs are applicable to the self-powered system, indicating that the system can make use of diverse mechanical sources and thus has potentially broad applications in illumination, display, entertainment, indication, surveillance and many others.

View Article: PubMed Central - PubMed

Affiliation: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China.

ABSTRACT
Self-powered system that is interface-free is greatly desired for area-scalable application. Here we report a self-powered electroluminescent system that consists of a triboelectric generator (TEG) and a thin-film electroluminescent (TFEL) lamp. The TEG provides high-voltage alternating electric output, which fits in well with the needs of the TFEL lamp. Induced charges pumped onto the lamp by the TEG generate an electric field that is sufficient to excite luminescence without an electrical interface circuit. Through rational serial connection of multiple TFEL lamps, effective and area-scalable luminescence is realized. It is demonstrated that multiple types of TEGs are applicable to the self-powered system, indicating that the system can make use of diverse mechanical sources and thus has potentially broad applications in illumination, display, entertainment, indication, surveillance and many others.

No MeSH data available.


Related in: MedlinePlus