PMID- 28594434
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 1613-6829 (Electronic)
IS  - 1613-6810 (Linking)
VI  - 13
IP  - 29
DP  - 2017 Aug
TI  - A Facile Method and Novel Mechanism Using Microneedle-Structured PDMS for 
      Triboelectric Generator Applications.
LID - 10.1002/smll.201700373 [doi]
AB  - The triboelectric generator (TEG) is a cost-effective, multi-fabricated, friendly 
      mechanical-energy-harvesting device. The traditional TEG, generally formed by two 
      triboelectric materials in multilayers or a simple pattern, generated 
      triboelectricity as it worked in the cycling contact-separation operation. This 
      paper demonstrates a novel, high-aspect-ratio, microneedle (MN)-structured 
      polydimethylsiloxane (PDMS)-based triboelectric generator (MN-TEG) by means of a 
      low-cost, simple fabrication using CO(2) laser ablation on the polymethyl 
      methacrylate substrate and a molding process. The MN-TEG, consisting of an 
      aluminum foil and a microneedle-structured PDMS (MN-PDMS) film, generates an 
      output performance with an open-circuit voltage up to 102.8 V, and a 
      short-circuit current of 43.1 microA, corresponding to the current density of 1.5 microA 
      cm(-2) . With introducing MN-PDMS into the MN-TEG, a great increase of randomly 
      closed bending-friction-deformation (BFD) behavior of MNs leads to highly 
      enhanced triboelectric performance of the MN-TEG. The BFD keeps increasingly on 
      in-contact between MN with Al that results in enhancement of electrical 
      capacitance of PDMS. The effect of aspect ratio and density of MN morphology on 
      the output performance of MN-PDMS TEG is studied further. The MN-TEG can rapidly 
      charge electric energy on a 0.1 microF capacitor up to 2.1 V in about 0.56 s. The 
      MN-TEG source under tapping can light up 53 light-emitting diodes with different 
      colors, connected in series.
CI  - (c) 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
FAU - Trinh, Van-Long
AU  - Trinh VL
AD  - Department of Mechanical Engineering, and Center for Micro/Nano Science and 
      Technology, National Cheng Kung University, Tainan, 701, Taiwan.
FAU - Chung, Chen-Kuei
AU  - Chung CK
AD  - Department of Mechanical Engineering, and Center for Micro/Nano Science and 
      Technology, National Cheng Kung University, Tainan, 701, Taiwan.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20170608
PL  - Germany
TA  - Small
JT  - Small (Weinheim an der Bergstrasse, Germany)
JID - 101235338
OTO - NOTNLM
OT  - bending-friction-deformation
OT  - carbon dioxide laser
OT  - microneedles
OT  - polydimethylsiloxane
OT  - triboelectric generators
EDAT- 2017/06/09 06:00
MHDA- 2017/06/09 06:01
CRDT- 2017/06/09 06:00
PHST- 2017/02/02 00:00 [received]
PHST- 2017/04/04 00:00 [revised]
PHST- 2017/06/09 06:00 [pubmed]
PHST- 2017/06/09 06:01 [medline]
PHST- 2017/06/09 06:00 [entrez]
AID - 10.1002/smll.201700373 [doi]
PST - ppublish
SO  - Small. 2017 Aug;13(29). doi: 10.1002/smll.201700373. Epub 2017 Jun 8.