Phenomenological morphology design of hybrid organic-inorganic perovskite solar cell for high efficiency and less hysteresis

Date

2020-02-01

Author

Ameri, Mohsen
Ghaffarkani, Mashhood
Ghahrizjani, Reza Taheri
Safari, Nasser
Mohajerani, Ezeddin

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

327
views

0
downloads

In this report, a modeling approach is employed to study the effect of the grain boundaries (GBs) and their electronic activity on the performance parameters of the perovskite solar cells (PSCs). Our model is based on the 1- dimensional drift-diffusion framework to engage the electron (hole) defects formed in the GBs and the GB's location through the perovskite layer. Power conversion efficiency (PCE) of the PSC is optimized with regards to the perovskite layer thickness, GBs location and perovskite layer band offset with GBs layer. The results shows that the location or the distribution of the GBs can vary the PCE of PSCs from 12% to around 21%, thereby making proper morphology engineering and passivation of GBs is a chief requirement for achieving high efficiency. PCEs larger than 21% require GB defect densities below 10(15) cm(-2). It is demonstrated that the band offset of about 100 meV with GB width of 1 nm could effectively suppress the negative impact of the GBs throughout the entire perovskite layer. Interestingly, GBs location at closer points to electron transport layer (ETL)/perovskite interface may give rise to higher PCEs, however, relatively stronger hysteresis in current values is observed. The results here provide insight into the effect of the GBs location and their corresponding type of defects on the hysteresis and the PSC performance and opens up new horizons to find solutions for current PSC's shortcomings.

Subject Keywords

Renewable Energy, Sustainability and the Environment, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films

URI

https://hdl.handle.net/11511/67975

Journal

SOLAR ENERGY MATERIALS AND SOLAR CELLS

DOI

https://doi.org/10.1016/j.solmat.2019.110251

Collections

Center for Solar Energy Research and Applications (GÜNAM), Article

Suggestions

OpenMETU
Core

Photovoltaic and photophysical properties of a novel bis-3-hexylthiophelle substituted quinoxaline derivative GÜNEŞ, Serap; Baran, Derya; Günbaş, Emrullah Görkem; Oezyurt, Funda; Fuchsbauer, Anita; Sariciftci, Niyazi Serdar; Toppare, Levent Kamil (Elsevier BV, 2008-09-01) We report on the photophysical properties and photovoltaic performance of a polythiophene derivative, poly-2,3-bis(4-tert-butylphenyl)-5,8-bis(4-hexylthiophen-2-yl)quinoxaline(PHTQ) as an electron donor in bulk heterojunction Solar Cells blended with the acceptor 1-(3-met hoxycarbonyl)propyl-1-phenyl-[6,6]-methanofullerence (PCBM). Devices were composed of PHTQ and varying amounts of PCBM (1:1, 1:2, 1:3, 1:4 w-w ratio). The components were spin cast from ortho-dichlorobenzene (ODCB) and characterized by mea...
A comprehensive approach for the instability of PbTe quantum dots and design of a combinatorial passivation strategy Hacıefendioğlu, Tuğba; Solmaz, Taha K.; Erkan, Merve; Asil Alptekin, Demet (Elsevier BV, 2020-04-01) Limited air stability circumvents the outstanding properties of the PbTe quantum dots (QDs) and hinders its utilization in the field of optoelectronics. In this respect, we present a detailed understanding on the instability of the PbTe QDs and develop a combinatorial passivation protocol based on engineering the QD surface during the growth phase and solid state ligand exchange process. The dual passivation approach yields thin films and solar cells with outstanding stabilities under ambient conditions. Pr...
Effect of Electrolyte-to-Sulfur Ratio in the Cell on the Li-S Battery Performance Emerce, Nur Ber; Eroglu, Damla (The Electrochemical Society, 2019-05-02) The effect of electrolyte-to-sulfur (E/S) ratio on the electrochemical and cell- and systems-level performance of a Li-S battery is investigated through modeling efforts. A 1-D electrochemical model is proposed predicting the cell voltage at 60% discharge depth. In the model, increasing electrolyte amount improves the cell voltage by linearly increasing the cathode exchange current density, which is the single kinetic model parameter. Moreover, cathode specific capacity is either defined as a linear functio...
Experimental insight into the performance characteristics of Ni-mesh semiconductor photo-electrochemical cells Bayer, I; Eroğlu, İnci; Turker, L (Elsevier BV, 2000-04-15) The performance characteristics of two photo-electrochemical cells with different cell configurations were investigated at 25 degrees C and within the illumination range of 70-100 W/m(2). These cells included a jacketed single cell (JSC) and a jacketed two-compartment cell (JTC). Ni-mesh was used as a counter electrode and as a backing material for semiconductor electrodes. Semiconductor electrodes were prepared by silk-screen painting technique using TiO2, WO3, PbO, Sb2S3, ZnO, Al2O3 or CuO powder mixed wi...
Effects of different laser modified surface morphologies and post-texturing cleanings on c-Si solar cell performance Radfar, Behrad; ES, FIRAT; Turan, Raşit (Elsevier BV, 2020-01-01) Performance of crystalline Silicon solar cells depends on numerous factors. One key factor is a surface structure which can restrict electrical and optical properties due to recombination of generated carriers and reflection of incident light. Surface texturing reduces reflection from a flat surface which increases absorption of light. Anisotropic alkaline etchants are commonly used for texturing mono-crystalline Silicon wafers which produce pyramid structures on the surface. Because of randomly oriented cr...

Citation Formats

M. Ameri, M. Ghaffarkani, R. T. Ghahrizjani, N. Safari, and E. Mohajerani, “Phenomenological morphology design of hybrid organic-inorganic perovskite solar cell for high efficiency and less hysteresis,” SOLAR ENERGY MATERIALS AND SOLAR CELLS, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67975.