Novel Cryo-controlled Nucleation Technique for High-efficiency Perovskite Solar Cells

Annie Ng, Zhiwei Ren, Sin Hang Cheung, Aleksandra B. Djurisic, Shu Kong Su, Gang Li, Charles Surya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel cryo-controlled nucleation technique is developed to grow mixed halide perovskite for solar cells (PSCs). The abrupt decrease in the ambient temperature results in a supersaturation condition in the precursor film prepared by the spin coating process, leading to form uniform nucleation sites for subsequent crystal growth. The low temperature ambient retards the pre-mature crystallization of the perovskite film in the early stage before a uniform seed layer is obtained. This film deposition approach ensures excellent uniformity of the nucleation layers and, subsequently, higher quality perovskite films. A power conversion efficiency (PCE) of 21.4 % for the champion PSC can be achieved by the proposed perovskite growth technique.

Original languageEnglish
Title of host publication2018 IEEE International Conference on Electron Devices and Solid State Circuits, EDSSC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538662342
DOIs
Publication statusPublished - Oct 9 2018
Event2018 IEEE International Conference on Electron Devices and Solid State Circuits, EDSSC 2018 - Shenzhen, China
Duration: Jun 6 2018Jun 8 2018

Publication series

Name2018 IEEE International Conference on Electron Devices and Solid State Circuits, EDSSC 2018

Other

Other2018 IEEE International Conference on Electron Devices and Solid State Circuits, EDSSC 2018
CountryChina
CityShenzhen
Period6/6/186/8/18

Keywords

  • crystallization
  • nucleation
  • perovksites
  • solar cells

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Fingerprint Dive into the research topics of 'Novel Cryo-controlled Nucleation Technique for High-efficiency Perovskite Solar Cells'. Together they form a unique fingerprint.

Cite this