Enhancing the Performance of Perovskite Solar Cells by Hybridizing SnS Quantum Dots with CH3NH3PbI3

Jianhua Han, Xuewen Yin, Hui Nan, Yu Zhou, Zhibo Yao, Jianbao Li, Dan Oron, Hong Lin

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The combination of perovskite solar cells and quantum dot solar cells has significant potential due to the complementary nature of the two constituent materials. In this study, solar cells (SCs) with a hybrid CH3NH3PbI3/SnS quantum dots (QDs) absorber layer are fabricated by a facile and universal in situ crystallization method, enabling easy embedding of the QDs in perovskite layer. Compared with SCs based on CH3NH3PbI3, SCs using CH3NH3PbI3/SnS QDs hybrid films as absorber achieves a 25% enhancement in efficiency, giving rise to an efficiency of 16.8%. The performance improvement can be attributed to the improved crystallinity of the absorber, enhanced photo-induced carriers' separation and transport within the absorber layer, and improved incident light utilization. The generality of the methods used in this work paves a universal pathway for preparing other perovskite/QDs hybrid materials and the synthesis of entire nontoxic perovskite/QDs hybrid structure.

Original languageEnglish
Article number1700953
JournalSmall
Volume13
Issue number32
DOIs
Publication statusPublished - Aug 25 2017

    Fingerprint

Keywords

  • hybrid films
  • in situ crystallization
  • perovskite
  • quantum dots
  • solar cells

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Engineering (miscellaneous)

Cite this