Driving mechanism of high speed electrochromic devices by using patterned array
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- 作者：Tae-Youb Kima ; b ; youby@etri.re.kr" class="auth_mail" title="E-mail the corresponding author ; Seong M. Choa ; Chil Seong Aha ; Hojun Ryua ; Joo Yeon Kima
- 关键词：Electrochromic devices (ECDs) ; Patterned array cells ; Nanoparticles ; Driving mechanism
- 刊名：Solar Energy Materials and Solar Cells
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：145
- 期：part_P1
- 页码：76-82
- 全文大小：2496 K
文摘
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Electrochromic devices (ECDs) having a high switching speed and a good durability were developed with viologen-anchored TiO2 (VTO) nanoparticles and antimony-doped SnO2 (ATO) nanoparticles.
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The fabricated single cell ECD showed a good stability after 30,000 cycles driving at 4 Hz speed.
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The pre-reduction step of ATO counter electrodes and the thickness control of two electrodes make an increase of cell stability because of the charge balance of ECDs.
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Also, 6×6 patterned array cells were designed to study the dynamic behaviour of their devices.
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The switching charges using the ATO half cell made the “cross-talk” problem because of residual charges in the VTO layer. On the other hand, the driving method of 3 types shows blur-free images.