Ternary atoms alloy quantum dot assisted hole transport in thin film polymer solar cells

Ogundele, Abiodun Kazeem; Mola, Genene Tessema

doi:10.1016/j.jpcs.2022.110999

Cited by 11 publications

(8 citation statements)

References 38 publications

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“…All materials were used as procured without further purification. The CdTeSe QD cores used were synthesized in aqueous media from two precursors according to a procedure reported earlier elsewhere 19,42 by dissolving a mixture of 1.28 g (6.66 mM) of sodium hydrogen telluride (NaHTe) granules and 0.78 g (14.01 mM) of sodium borohydride (NaBH 4 ) with 20 ml of Millipore water in 50 ml round bottom flask placed in an ice bath under streams of argon gas bubbling for 12 h, resulting to a pink colouration which indicated the formation of our precursor. A similar mole ratio above was employed for the formation of NaHSe precursor using selenium powder yielding purple colouration as the second precursor.…”

Section: Methodsmentioning

confidence: 99%

Tri‐metallic quantum dot under the influence of solvent additive for improved performance of polymer solar cells

Oseni

Osifeko

Boyo

et al. 2022

J of Applied Polymer Sci

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CdTeSe colloidal quantum dot (QD) was used to enhance photon capture in thin film polymer solar cells (TFPSC). The QDs were synthesized in aqueous media from two different precursors. Bulk heterojunction (BHJ) polymer blends composed of P3HT and PCBM were used as an absorber layer of the solar cell to investigate the effect of QDs. Different concentrations of QDs were used in the polymer matrix, which significantly impacted the power conversion efficiency (PCE) of the doped devices. More device performance growth was recorded by employing a small amount of solvent additives to disperse the QDs and increase the polymer's crystallinity in the medium. Hence, the addition of 1, Chloronaphthalene (CN) solvent additive in the QD‐doped bulk heterojunction film further enhanced the overall performance of the TFPSC due to improved film morphology that has significantly influenced the charge transport processes. Consequently, the PCE of the solar cell increased by nearly 50% compared to the pristine TFPSC due to the effect of solvent additives.

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Section: Methodsmentioning

confidence: 99%

Tri‐metallic quantum dot under the influence of solvent additive for improved performance of polymer solar cells

Oseni

Osifeko

Boyo

et al. 2022

J of Applied Polymer Sci

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“…Apart from this, it has been shown that the hole transport layer (HTL) plays a role in controlling thin film solar cell structures, by engineering the band alignment at the junction interface. Numerous studies on different HTLs for organic solar cells have been performed [ 25 , 26 , 27 , 28 ]. PEDOT:PSS is recognized as one of the best polymer materials utilized as an HTL, and especially for inverted SCs thanks to its high conductivity, visible transparency, and low cost [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Device Modeling of Efficient PBDB-T:PZT-Based All-Polymer Solar Cell: Role of Band Alignment

2023

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In this study, we present some design suggestions for all-polymer solar cells by utilizing device simulation. The polymer solar cell under investigation is formed by a photoactive film of a blend comprising PBDB-T as a polymer donor and PZT as a polymerized small molecule acceptor. The initial cell is based on a fabricated cell whose structure is ITO/PEDOT:PSS/PBDB-T:PZT/PFN-Br/Ag, which has a power conversion efficiency (PCE) of about 14.9%. A calibration procedure is then performed by comparing the simulation results with experimental data to confirm the simulation models, and the material parameters, implemented in the SCAPS (Solar Cell Capacitance Simulator) simulator. To boost the open circuit voltage, we investigate a group of hole transport layer (HTL) materials. An HTL of CuI or P3HT, that may replace the PEDOT:PSS, results in a PCE of higher than 20%. However, this enhanced efficiency results in a minor S-shape curve in the current density-voltage (J-V) characteristic. So, to suppress the possibility of the appearance of an S-curve, we propose a double HTL structure, for which the simulation shows a higher PCE with a suppressed kink phenomenon due to the proper band alignment. Moreover, the designed cell is investigated when subjected to a low light intensity, and the cell shows a good performance, signifying the cell’s suitability for indoor applications. The results of this simulation study can add to the potential development of highly efficient all-polymer solar cells.

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“…In addition, the engineering of energy gap matching at the interfaces has demonstrated the role of the hole transfer layer (HTL) in influencing the architectures of solar devices. Numerous studies have been conducted on various HTLs in organic solar cells [ 26 , 27 , 28 , 29 ]. One of the most outstanding polymer compounds for usage as a HTL is PEDOT: PSS, due to its excellent conductivity, apparent transparency, and inexpensive-cost, especially for inverted solar devices [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Inverted Structure of a PBDB:T/PZT:C1-Based Polymer Solar Cell

Al-Muhimeed,

Alahmari,

Ahsan

et al. 2023

Polymers

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Based on experimental results, this theoretical study presents a new approach for investigating polymers’ solar cells. P-type PZT:C1 and N-type PBDB:T were used to construct a blend for use as a photoactive layer for the proposed all-polymer solar cell. Initially, an architecture of an ITO/PEDOT:PSS/PBDB:T/PZT:C1/PFN-Br/Ag all-polymer solar device calibrated with experimental results achieved a PCE of 14.91%. A novel inverted architecture of the same solar device, proposed for the first time in this paper, achieved a superior PCE of 19.92%. Furthermore, the optimization of the doping of the transport layers is proposed in this paper. Moreover, the defect density and the thickness of the polymer are studied, and a PCE of 22.67% was achieved by the optimized cell, which is one of the highest PCEs of polymer solar devices. Finally, the optimized polymer solar cell showed good stability amidst temperature variations. This theoretical study sheds light on the inverted structure of all-polymer solar devices.

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Ternary atoms alloy quantum dot assisted hole transport in thin film polymer solar cells

Cited by 11 publications

References 38 publications

Tri‐metallic quantum dot under the influence of solvent additive for improved performance of polymer solar cells

Tri‐metallic quantum dot under the influence of solvent additive for improved performance of polymer solar cells

Device Modeling of Efficient PBDB-T:PZT-Based All-Polymer Solar Cell: Role of Band Alignment

An Investigation of the Inverted Structure of a PBDB:T/PZT:C1-Based Polymer Solar Cell

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