Release Time:2019-03-12  Hits:

Indexed by:Journal Article

Date of Publication:2018-11-22

Journal:SMALL

Included Journals:Scopus、SCIE、PubMed

Volume:14

Issue:47

Page Number:e1802738

ISSN:1613-6810

Key Words:additive; nucleation; perovskite solar cells; Ti3C2Tx MXene

Summary:MXenes, a newly intriguing family of 2D materials, have recently attracted considerable attention owing to their excellent properties such as high electrical conductivity and mobility, tunable structure, and termination groups. Here, the Ti3C2Tx MXene is incorporated into the perovskite absorber layer for the first time, which aims for efficiency enhancement. Results show that the termination groups of Ti3C2Tx can retard the crystallization rate, thereby increasing the crystal size of CH3NH3PbI3. It is found that the high electrical conductivity and mobility of MXene can accelerate the charge transfer. After optimizing the key parameters, 12% enhancement in device performance is achieved by 0.03 wt% amount of MXene additive. This work unlocks opportunities for the use of MXene as potential materials in perovskite solar cell applications.