Efficiency enhancement of perovskite solar cells by incorporation of CdS quantum dot through fast electron injection

Ali, Syed Mansoor; Ramay, Shahid M.; Aziz, Muhammad Hammad; Ur-Rehman, Naeem; AlGarawi, M. S.; AlGhamd, S.S.; Mahmood, Asif; Alkhuraiji, Turki S.; Atiq, Shahid

doi:10.1016/j.orgel.2018.07.012

Cited by 29 publications

(13 citation statements)

References 28 publications

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“…In addition, the carrier lifetimes are also estimated from EIS from Eq. ( 3 ) [ 51 – 53 ]: where f is the frequency of the highest point in EIS. The calculated τ is 0.31 ms for the control device, and 1.66 ms for the device with PEA.…”

Section: Resultsmentioning

confidence: 99%

An Efficient Trap Passivator for Perovskite Solar Cells: Poly(propylene glycol) bis(2-aminopropyl ether)

Chen

Zhuang

et al. 2020

Nano-Micro Lett.

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Perovskite solar cells (PSCs) are regarded as promising candidates for future renewable energy production. High-density defects in the perovskite films, however, lead to unsatisfactory device performances. Here, poly(propylene glycol) bis(2-aminopropyl ether) (PEA) additive is utilized to passivate the trap states in perovskite. The PEA molecules chemically interact with lead ions in perovskite, considerably passivate surface and bulk defects, which is in favor of charge transfer and extraction. Furthermore, the PEA additive can efficiently block moisture and oxygen to prolong the device lifetime. As a result, PEA-treated MAPbI3 (MA: CH3NH3) solar cells show increased power conversion efficiency (PCE) (from 17.18 to 18.87%) and good long-term stability. When PEA is introduced to (FAPbI3)1-x(MAPbBr3)x (FA: HC(NH2)2) solar cells, the PCE is enhanced from 19.66 to 21.60%. For both perovskites, their severe device hysteresis is efficiently relieved by PEA.

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Section: Resultsmentioning

confidence: 99%

An Efficient Trap Passivator for Perovskite Solar Cells: Poly(propylene glycol) bis(2-aminopropyl ether)

Chen

Zhuang

et al. 2020

Nano-Micro Lett.

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“…[ 24 ] Ali et al found that the combination of TiO 2 with CdS QDs could improve the capability of transport and the injection of electrons. [ 25 ]…”

Section: Sulfide Etmsmentioning

confidence: 99%

Recent Progress in Perovskite Solar Cells Modified by Sulfur Compounds

et al. 2021

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In the past decade, organic–inorganic hybrid perovskite solar cells (PSCs) have begun to be increasingly studied worldwide owing to the superior properties of perovskite material. However, some issues have delayed their commercialization, such as their long‐term stability, cost reduction, scale‐up ability, and efficiency. The introduction of sulfur to PSCs can relieve the above issues because sulfur can passivate interfacial trap states, suppress charge recombination, and inhibit ion migration, thereby enhancing the stability of PSCs. Furthermore, PbS bonds provide new channels for carrier extraction. Herein, the sulfur‐based compounds utilized in PSCs are summarized and classified according to their functions in the different layers of PSCs. The results indicate that these sulfur‐based compounds have efficiently promoted the commercialization of PSCs. It is hoped that this review can help others understand the intrinsic phenomena of sulfur‐based PSCs and motivate additional investigations.

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“…It allows quantum transitions for a wide wavelength spectrum of electromagnetic radiation [3]. Numerous recent experiments confirm the existence of such effect [4].…”

Section: Introductionmentioning

confidence: 90%

Generation, Absorption and Photoconductivity in 2D Structures of Perovskite with Nanodisc Quantum Dots

et al. 2019

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An array of semiconductor quantum dots introduced into photoelectric materials is currently an effective tool to increase the efficiency of photoelectric devices and photovoltaic cells. This is related to additional energy levels which expand the range of absorption frequencies towards the infrared. We consider the model with a semiconductor quantum dot in form of nanodisc surrounded by another semiconductor material. The results of calculation of the generation of non-equilibrium carriers in the conduction and valence bands are presented. The calculations account for discrete levels of the quantum dots embedded into perovskite material. Using the calculated generation and relaxation rates, the photocurrent is also determined.

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Efficiency enhancement of perovskite solar cells by incorporation of CdS quantum dot through fast electron injection

Cited by 29 publications

References 28 publications

An Efficient Trap Passivator for Perovskite Solar Cells: Poly(propylene glycol) bis(2-aminopropyl ether)

An Efficient Trap Passivator for Perovskite Solar Cells: Poly(propylene glycol) bis(2-aminopropyl ether)

Recent Progress in Perovskite Solar Cells Modified by Sulfur Compounds

Generation, Absorption and Photoconductivity in 2D Structures of Perovskite with Nanodisc Quantum Dots

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