Journal
SMALL
Volume 15, Issue 33, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201902878
Keywords
perovskite solar cells; soft electronics; stretchable electronics; wearable electronics
Categories
Funding
- 973 Program-the National Basic Research Program of China [2015CB358600] Funding Source: Medline
- National Basic Research Program of China (973 Program) [2015CB358600] Funding Source: Medline
- National Natural Science Foundation of China [21671141, 21601130] Funding Source: Medline
- Priority Academic Program Development of Jiangsu Higher Education Institutions Funding Source: Medline
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Funding Source: Medline
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions Funding Source: Medline
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Wearable devices are mainly based on plastic substrates, such as polyethylene terephthalate and polyethylene naphthalate, which causes environmental pollution after use due to the long decomposition periods. This work reports on the fabrication of a biodegradable and biocompatible transparent conductive electrode derived from bamboo for flexible perovskite solar cells. The conductive bioelectrode exhibits extremely flexible and light-weight properties. After bending 3000 times at a 4 mm curvature radius or even undergoing a crumpling test, it still shows excellent electrical performance and negligible decay. The performance of the bamboo-based bioelectrode perovskite solar cell exhibits a record power conversion efficiency (PCE) of 11.68%, showing the highest efficiency among all reported biomass-based perovskite solar cells. It is remarkable that this flexible device has a highly bendable mechanical stability, maintaining over 70% of its original PCE during 1000 bending cycles at a 4 mm curvature radius. This work paves the way for perovskite solar cells toward comfortable and environmentally friendly wearable devices.
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