In:
New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 46, No. 30 ( 2022), p. 14703-14710
Abstract:
Dye-sensitized solar cells (DSSCs) with cheap, simple, and fast preparation methods have attracted great interest from researchers as outstanding representatives of third-generation solar cells. To improve the applicability of dye-sensitized solar cells, the development of materials with high efficiency and low production cost is the top priority. In this work, the MoO 2 /MoP heterostructure was obtained by a hydrothermal method combined with phosphate annealing, and their electrochemical properties were further investigated. Compared with MoO 2 , the heterogeneous MoO 2 /MoP possessed superior electrical conductivity and catalytic activity. The DSSC fabricated with MoO 2 /MoP achieved an excellent conversion efficiency (PCE) of 8.64%, which was better than that of MoO 2 (7.63%), and platinum (7.68%). The results verified that the novel structural engineering and good synergy between MoO 2 and MoP make it have excellent electrocatalytic behavior. Meanwhile, in the MoO 2 /MoP heterostructure, a large number of nanosheets are distributed on the porous MoO 2 . The porous structure enhances the ion penetration, and the abundant nanosheets expand the contact surface with the electrolyte, providing a substantial active reaction surface and sufficient catalytically active sites for the catalytic reduction of I 3 − . Therefore, the MoO 2 /MoP nanocomposites with high efficiency, simple preparation, and low cost provide a possibility for the study of electrode materials.
Type of Medium:
Online Resource
ISSN:
1144-0546
,
1369-9261
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
622959-1
detail.hit.zdb_id:
1472933-7
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