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Spontaneous bifacial capping of perovskite film for efficient and mechanically stable flexible solar cell.
Nat Commun
January 2025
The Institute of Technological Sciences, Wuhan University, Wuhan, China.
Flexible perovskite solar cells (F-PSCs) are appealing for their flexibility and high power-to-weight ratios. However, the fragile grain boundaries (GBs) in perovskite films can lead to stress and strain cracks under bending conditions, limiting the performance and stability of F-PSCs. Herein, we show that the perovskite film can facilely achieve in situ bifacial capping via introducing 4-(methoxy)benzylamine hydrobromide (MeOBABr) as the precursor additive.
View Article and Find Full Text PDFEnhancing perovskite solar cell performance through PbI passivation using a one-step process: experimental insights and simulations.
RSC Adv
October 2024
Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission Dhaka 1349 Bangladesh.
Article Synopsis
- The study investigates the properties and passivation of methylammonium lead triiodide (MAPbI) used in perovskite solar cells, finding a tetragonal crystal structure with a slight excess of PbI at grain boundaries.
- Optical tests show MAPbI has a band gap of 1.53 eV, suggesting its effectiveness as a visible light absorber for solar energy applications.
- Simulations predict a maximum power conversion efficiency (PCE) of 26.03% for optimized solar cell designs, highlighting the importance of various parameters like resistance and device structure in improving efficiency.
High-performance bifacial perovskite solar cells enabled by single-walled carbon nanotubes.
Nat Commun
March 2024
Advanced Technology Institute (ATI), University of Surrey, Guildford, Surrey, GU2 7XH, UK.
Bifacial perovskite solar cells have shown great promise for increasing power output by capturing light from both sides. However, the suboptimal optical transmittance of back metal electrodes together with the complex fabrication process associated with front transparent conducting oxides have hindered the development of efficient bifacial PSCs. Here, we present a novel approach for bifacial perovskite devices using single-walled carbon nanotubes as both front and back electrodes.
View Article and Find Full Text PDFPractical Enhancements in Current Density and Power Generation of Bifacial Semitransparent Ultrathin CIGSe Solar Cells via Utilization of Wide Bandgap Zn-Based Buffer.
Adv Sci (Weinh)
May 2022
Photovoltaics Research Department, Korea Institute of Energy Research (KIER), Daejeon, 34129, Republic of Korea.
Among many building-integrated semitransparent photovoltaics (BISTPVs), semitransparent ultrathin (STUT) Cu(In ,Ga )Se (CIGSe) solar cells are distinguishable due to their potential high power conversion efficiency (PCE) among other thin-film solar cells, versatile applicability based on thin film deposition processes, high stability consisting of all inorganic compositions, and practical expandability to bifacial applications. However, the fundamental trade-off relationship between PCE and transparency limits the performance of BISTPV because implementing a higher semitransparency lowers the optical budget of incoming light. To expand the available optical budget and to enhance the PCE while maintaining a suitable transparency in STUT CIGSe solar cell with single-stage coevaporated 500-nm-thick absorber, an atomic layer deposited wide bandgap Zn(O,S) buffer is introduced as the replacement of conventional CdS buffer, which partially limits incoming light less than 520 nm in wavelength.
View Article and Find Full Text PDFPerovskite Solar Cells Go Bifacial-Mutual Benefits for Efficiency and Durability.
Adv Mater
January 2022
Wright Center for Photovoltaics Innovation and Commercialization, Department of Physics and Astronomy, University of Toledo, 2801 W Bancroft St, Toledo, OH, 43606, USA.
Bifacial solar cells hold the potential to achieve a higher power output per unit area than conventional monofacial devices without significantly increasing manufacturing costs. However, efficient bifacial designs are challenging to implement in inorganic thin-film solar cells because of their short carrier lifetimes and high rear surface recombination. The emergence of perovskite photovoltaic (PV) technology creates a golden opportunity to realize efficient bifacial thin-film solar cells, owing to their outstanding optoelectronic properties and unique features of device physics.
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