Journal article
MXene-Contacted Silicon Solar Cells with 11.5% Efficiency
Advanced energy materials, Vol.9(22), pn/a
01 Jun 2019
Abstract
MXene, a new class of 2D materials, has gained significant attention owing to its attractive electrical conductivity, tunable work function, and metallic nature for wide range of applications. Herein, delaminated few layered Ti3C2Tx MXene contacted Si solar cells with a maximum power conversion efficiency (PCE) of approximate to 11.5% under AM1.5G illumination are demonstrated. The formation of an Ohmic junction of the metallic MXene to n(+)-Si surface efficiently extracts the photogenerated electrons from n(+)np(+)-Si, decreases the contact resistance, and suppresses the charge carrier recombination, giving rise to excellent open-circuit voltage and short-circuit current density. The rapid thermal annealing process further improves the electrical contact between Ti3C2Tx MXene and n(+)-Si surface by reducing sheet resistance, increasing electrical conductivity, and decreasing cell series resistance, thus leading to a remarkable improvement in fill factor and overall PCE. The work demonstrated here can be extended to other MXene compositions as potential electrodes for developing highly performing solar cells.
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Details
- Title
- MXene-Contacted Silicon Solar Cells with 11.5% Efficiency
- Creators
- Hui-Chun Fu - King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn, Thuwal 239556900, Saudi ArabiaVinoth Ramalingam - King Abdullah University of Science and TechnologyHyunho Kim - King Abdullah University of Science and TechnologyChun-Ho Lin - King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn, Thuwal 239556900, Saudi ArabiaXiaosheng Fang - Fudan UniversityHusam N. Alshareef - King Abdullah University of Science and TechnologyJr-Hau He - King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn, Thuwal 239556900, Saudi Arabia
- Publication Details
- Advanced energy materials, Vol.9(22), pn/a
- Publisher
- Wiley
- Number of pages
- 9
- Grant note
- KAUST Solar Center KAUST Sensor Initiative 18520744600; 18520710800; 17520742400 / Science and Technology Commission of Shanghai Municipality; Science & Technology Commission of Shanghai Municipality (STCSM) King Abdullah University of Science and Technology (KAUST) Baseline Funds KAUST Catalysis Center
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000471132800011
- Scopus ID
- 2-s2.0-85065044682
- Other Identifier
- 991022059920704721