Back to Search
Start Over
Back Interface and Absorber Bulk Deep-Level Trap Optimization Enables Highly Efficient Flexible Antimony Triselenide Solar Cell.
- Source :
-
Advanced science (Weinheim, Baden-Wurttemberg, Germany) [Adv Sci (Weinh)] 2024 Jun; Vol. 11 (22), pp. e2310193. Date of Electronic Publication: 2024 Mar 20. - Publication Year :
- 2024
-
Abstract
- The unique 1D crystal structure of Antimony Triselenide (Sb <subscript>2</subscript> Se <subscript>3</subscript> ) offers notable potential for use in flexible, lightweight devices due to its excellent bending characteristics. However, fabricating high-efficiency flexible Sb <subscript>2</subscript> Se <subscript>3</subscript> solar cells is challenging, primarily due to the suboptimal contact interface between the embedded Sb <subscript>2</subscript> Se <subscript>3</subscript> layer and the molybdenum back-contact, compounded by complex intrinsic defects. This study introduces a novel Molybdenum Trioxide (MoO <subscript>3</subscript> ) interlayer to address the back contact interface issues in flexible Sb <subscript>2</subscript> Se <subscript>3</subscript> devices. Further investigations indicate that incorporating a MoO <subscript>3</subscript> interlayer not only enhances the crystalline quality but also promotes a favorable [hk1] growth orientation in the Sb <subscript>2</subscript> Se <subscript>3</subscript> absorber layer. It also reduces the barrier height at the back contact interface and effectively passivates harmful defects. As a result, the flexible Sb <subscript>2</subscript> Se <subscript>3</subscript> solar cell, featuring a Mo-foil/Mo/MoO <subscript>3</subscript> /Sb <subscript>2</subscript> Se <subscript>3</subscript> /CdS/ITO/Ag substrate structure, demonstrates exceptional flexibility and durability, enduring large bending radii and multiple bending cycles while achieving an impressive efficiency of 8.23%. This research offers a straightforward approach to enhancing the performance of flexible Sb <subscript>2</subscript> Se <subscript>3</subscript> devices, thereby expanding their application scope in the field of photovoltaics.<br /> (© 2024 The Authors. Advanced Science published by Wiley‐VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 2198-3844
- Volume :
- 11
- Issue :
- 22
- Database :
- MEDLINE
- Journal :
- Advanced science (Weinheim, Baden-Wurttemberg, Germany)
- Publication Type :
- Academic Journal
- Accession number :
- 38509636
- Full Text :
- https://doi.org/10.1002/advs.202310193