Foldable Perovskite Solar Cells Using Carbon Nanotube-Embedded Ultrathin Polyimide Conductor

Title
Foldable Perovskite Solar Cells Using Carbon Nanotube-Embedded Ultrathin Polyimide Conductor
Authors
이승기이필립윤정진유용석김언수변준섭남정석김규선Qiiang ZhangEsko I. KauppinenShigeo Maruyama전일
Keywords
Foldable solar cell; Flexible perovskite solar cell; Bendable solar cell; CNT
Issue Date
2021-02
Publisher
Advanced science
Citation
VOL 2004092-9
Abstract
Recently, foldable electronics technology has become the focus of both academic and industrial research. The foldable device technology is distinct from flexible technology, as foldable devices have to withstand severe mechanical stresses such as those caused by an extremely small bending radius of 0.5 mm. To realize foldable devices, transparent conductors must exhibit outstanding mechanical resilience, for which they must be micrometer­thin, and the conducting material must be embedded into a substrate. Here, single­walled carbon nanotubes (CNTs)?polyimide (PI) composite film with a thickness of 7 ?m is synthesized and used as a foldable transparent conductor in perovskite solar cells (PSCs). During the high­temperature curing of the CNTs­embedded PI conductor, the CNTs are stably and strongly p­doped using MoOx, resulting in enhanced conductivity and hole transportability. The ultrathin foldable transparent conductor exhibits a sheet resistance of 82 Ω sq.?1 and transmittance of 80% at 700 nm, with a maximum­power­point­tracking­output of 15.2% when made into a foldable solar cell. The foldable solar cells can withstand more than 10 000 folding cycles with a folding radius of 0.5 mm. Such mechanically resilient PSCs are unprecedented; further, they exhibit the best performance among the carbon­nanotube­transparent­electrode­based flexible solar cells.
URI
http://pubs.kist.re.kr/handle/201004/72717
ISSN
2198-3844
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE