2021年7月
The effect of water on colloidal quantum dot solar cells
Nature Communications
- 巻
- 12
- 号
- 1
- 開始ページ
- 4381/1
- 終了ページ
- 4381/12
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1038/s41467-021-24614-7
- 出版者・発行元
- Springer Science and Business Media LLC
<title>Abstract</title>Almost all surfaces sensitive to the ambient environment are covered by water, whereas the impacts of water on surface-dominated colloidal quantum dot (CQD) semiconductor electronics have rarely been explored. Here, strongly hydrogen-bonded water on hydroxylated lead sulfide (PbS) CQD is identified. The water could pilot the thermally induced evolution of surface chemical environment, which significantly influences the nanostructures, carrier dynamics, and trap behaviors in CQD solar cells. The aggravation of surface hydroxylation and water adsorption triggers epitaxial CQD fusion during device fabrication under humid ambient, giving rise to the inter-band traps and deficiency in solar cells. To address this problem, meniscus-guided-coating technique is introduced to achieve dense-packed CQD solids and extrude ambient water, improving device performance and thermal stability. Our works not only elucidate the water involved PbS CQD surface chemistry, but may also achieve a comprehensive understanding of the impact of ambient water on CQD based electronics.
- リンク情報
-
- DOI
- https://doi.org/10.1038/s41467-021-24614-7
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000675854400004&DestApp=WOS_CPL
- URL
- http://www.nature.com/articles/s41467-021-24614-7.pdf
- URL
- http://www.nature.com/articles/s41467-021-24614-7
- ID情報
-
- DOI : 10.1038/s41467-021-24614-7
- ISSN : 2041-1723
- eISSN : 2041-1723
- Web of Science ID : WOS:000675854400004