A review of interface engineering characteristics for high performance perovskite solar cells

Njema, George G.; Kibet, Joshua K.; Ngari, Silas M.

doi:10.1016/j.meaene.2024.100005

Cited by 8 publications

(4 citation statements)

References 254 publications

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“…This process is vital for restoring device functionality and enabling dynamic response, such as rapid recovery in photodetectors after exposure to light. To optimise the semiconductor device performance and reliability, engineers and researchers employ techniques, such as passivation, material purification, and defect engineering to mitigate trapping effects [87]. Advanced characterisation methods, such as deep-level transient spectroscopy and capacitance-voltage (C-V) measurements provide insights into trap states and dynamics, aiding in the design and enhancement of semiconductor devices for various applications [88].…”

Section: Generation and Recombination Of Excitonsmentioning

confidence: 99%

“…The ideality factor is affected by the recombination of excitons in the cell so that when the electron travels to the electrode, where it can be collected as current, some of the electrons may recombine with holes before reaching the electrode, which ultimately leads to a reduction in the cell's PCE [89]. Minimising recombination events at interfaces is crucial for optimising the cell's performance, achievable through careful material selection and device design [87]. The external circuitry connecting the two electrodes enables the flow of electrons from the cell to an external load, completing the circuit and allowing for the extraction of the electrical energy generated by the cell [90].…”

Section: Generation and Recombination Of Excitonsmentioning

confidence: 99%

“…Through capacitance measurements across varying voltages, valuable insights regarding the semiconductor carrier concentration and doping profile can be derived. The process of conducting MS analysis on an ssDSSC typically involves assessing the capacitance of the semiconductor-electrolyte interface under varying applied voltages [87,95,106]. This method necessitates the application of an alternating current (AC) voltage to the system while observing the resulting capacitance.…”

Section: Ms Characteristicsmentioning

confidence: 99%

“…Finally, at the ITO electrode interface, the capacitance shapes the charge injection and extraction processes. High capacitance facilitates efficient charge transfer between organic layers and the electrode, minimising charge recombination losses and elevating device performance [11,87]. In essence, the capacitance impacts various aspects of the device, including charge injection, extraction, transport, storage, and recombination within each layer.…”

Section: Ms Characteristicsmentioning

confidence: 99%

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Numerical simulation of a novel high performance solid‐state dye‐sensitised solar cell based on N719 dye

Njema,

Kibet,

Rono

et al. 2024

IET Optoelectronics

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Among the emerging photovoltaic technologies, solid‐state dye‐sensitised solar cells (ssDSSCs) have attracted considerable interest due to their cost‐effective production, adjustable characteristics, and potential for lightweight and flexible applications. Nevertheless, achieving efficiencies comparable to established technologies, such as perovskite and silicon‐based solar devices, have proven challenging. Herein, the device structure, Pt/PEDOT: PSS/N719 dye/PC61BM/ITO is investigated theoretically using the solar cell capacitance simulator (SCAPS‐1D). Groundbreaking advancement is introduced in ssDSSC design, achieving remarkable theoretical power conversion efficiency of 20.73%, surpassing the performance reported in traditional dye‐based solar cell technologies. The model ssDSSC demonstrates an exceptional Fill factor of 86.64%, indicating efficient current collection; along with a modest short‐circuit current density (Jsc) of 22.38 mA/cm2 and an impressive open‐circuit voltage (Voc) of 1.0691 V, highlighting efficient light absorption and charge separation. Mott–Schottky capacitance analysis and parasitic resistances (series and shunt) have been thoroughly discussed. Despite the fact that only numerical simulation is involved, the proposed ssDSSCs structure gives insights into the fabrication of a highly efficient solar cell that can be injected into the production workflow in order to advance the photovoltaic technology of the solid‐state DSSC.

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Section: Generation and Recombination Of Excitonsmentioning

confidence: 99%

Section: Generation and Recombination Of Excitonsmentioning

confidence: 99%

Section: Ms Characteristicsmentioning

confidence: 99%

Section: Ms Characteristicsmentioning

confidence: 99%

See 2 more Smart Citations

Numerical simulation of a novel high performance solid‐state dye‐sensitised solar cell based on N719 dye

Njema,

Kibet,

Rono

et al. 2024

IET Optoelectronics

Self Cite

View full text Add to dashboard Cite

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Modelling and Numerical Evaluation of Photovoltaic Parameters of a Highly Efficient Perovskite Solar Cell Based on Methylammonium Tin Iodide

Njema,

Mosonik,

Ahia

et al. 2024

Chemistry A European J

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Designing a high performance solar cell structure requires the understanding of material innovation, device engineering, charge behavior, operation characteristics and efficient photoconversion of light to generate electricity. This study offers a detailed numerical evaluation of the device physics in a highly efficient methylammonium‐based perovskite solar cell (PSC) of the configuration, FTO/WO3/CH₃NH₃SnI₃/GO/Fe. Utilizing the SCAPS‐1D device simulator, an impressive open‐circuit voltage (Voc) of 1.3184 V, short‐circuit current density (Jsc) of 35.10 mA/cm², Fill factor (FF) of 78.38%, and power conversion efficiency (PCE) of 36.24% were achieved. The model cell exhibits a robust photon capture of 100% quantum efficiency between 360 and 750 nm. The study also presents temperature‐dependent band alignment diagram which posted a built‐in potential (Vbi) of 0.62 eV. The Vbi at 400 K was found to be 0.58 eV indicating that the model cell exhibits a decent temperature tolerance, and can retain approximately 93% of its power at 400 K. Through Mott‐Schottky capacitance analysis, deeper insights into the space‐charge region are inferred, while recombination‐generation investigations emphasize the significance of electronic properties in optimizing device performance. This paper, therefore, lays the foundation for future studies, offering clear pathways for device optimization and identifying key areas that require further investigation.

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Advancing Electrical Engineering with Biomass‐derived Carbon Materials: Applications, Innovations, and Future Directions

Afridi,

Aktary,

Shaheen Shah

et al. 2024

The Chemical Record

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The ongoing global shift towards sustainability in electrical engineering necessitates novel materials that offer both ecological and technical benefits. Biomass‐derived carbon materials (BCMs) are emerging as cornerstones in this transition due to their sustainability, cost‐effectiveness, and versatile properties. This review explores the expansive role of BCMs across various electrical engineering applications, emphasizing their transformative impact and potential in fostering a sustainable technological ecosystem. The fundamentals of BCMs are investigated, including their unique structures, diverse synthesis procedures, and significant electrical and electrochemical properties. A detailed examination of recent innovations in BCM applications for energy storage, such as batteries and supercapacitors, and their pivotal role in developing advanced electronic components like sensors, detectors, and electromagnetic interference shielding composites has been covered. BCMs offer superior electrical conductivities, tunable surface chemistries, and mechanical properties compared to traditional carbon sources. These can be further enhanced through innovative doping and functionalization techniques. Moreover, this review identifies challenges related to scalability and uniformity in properties and proposes future research directions to overcome these hurdles. By integrating insights from recent studies with a forward‐looking perspective, this paper sets the stage for the next generation of electrical engineering solutions powered by biomass‐derived materials, aligning technological advancement with environmental stewardship.

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A review of interface engineering characteristics for high performance perovskite solar cells

Cited by 8 publications

References 254 publications

Numerical simulation of a novel high performance solid‐state dye‐sensitised solar cell based on N719 dye

Numerical simulation of a novel high performance solid‐state dye‐sensitised solar cell based on N719 dye

Modelling and Numerical Evaluation of Photovoltaic Parameters of a Highly Efficient Perovskite Solar Cell Based on Methylammonium Tin Iodide

Advancing Electrical Engineering with Biomass‐derived Carbon Materials: Applications, Innovations, and Future Directions

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