Numerical investigation of the effects of copper sulfide nanoparticles on hole transport layer of thin-film organic solar cells

Adedeji, Michael A.; Mola, Genene Tessema

doi:10.1007/s10825-021-01843-z

Cited by 7 publications

(7 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even though P 3 HT: PC 61 BM-based OSCs are lightweight, have a large area of coverage, and are low-cost to fabricate, the potential commercialization of OSC has not yet been entirely accomplished [29]. One plausible issue is that the most common anode material used in OSC is a transparent conductive oxide (TCO), which is expensive to produce and has some undesirable features [30].…”

Section: Introductionmentioning

confidence: 99%

“…The input material parameters used in the P 3 HT: PC 61 BM OSC device is based on previously tested values for the various consecutive layers. Here the symbols used for parameters are thickness (W), bandgap (E g ), relative permittivity (ε r ), electron affinity (χ i ), electron mobility (μ n ), hole mobility (μ p ), effective DOS at CB (N C ), effective DOS at VB (N V ), electron trap density (N e exp ), hole trap density (N h exp ), electron tail slope (N n U ), hole tail slope (N h U ), respectively[8][9][10][11][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37]. Performance of OAL thickness with variable TCO in OSC After the optimization of TCO's thickness, the maximum value of device parameters would be achieved through the optimum thickness of OAL.…”

mentioning

confidence: 99%

See 1 more Smart Citation

The role of a highly optimized approach with superior transparent conductive oxide anode towards efficient organic solar cell

Gogoi

Das

2023

Phys. Scr.

View full text Add to dashboard Cite

The effort emphasizes the numerical analysis of different transparent conducting oxides (TCOs) perspectives, which include ITO, FTO, AZO, and IZO anode-based organic solar cells (OSCs) with the drift-diffusion approach. The prior selection of aluminum-doped zinc oxide (AZO) as TCO is feasible for more extended transparency and antireflection due to a tailored absorption wavelength of <380 nm and the factors of higher mechanical flexibility, low-cost processing, and realistic performance at lower temperatures. To confirm the stability and reproducibility of the design OSC, the contribution of each interfacial layer thickness, i.e., AZO as TCOs, P3HT: PC61BM as an organic absorbing layer (OAL), Spiro-OMeTAD (SOT) as a hole-transport layer (HTL), and ZnO as an electron-transport layer (ETL), is also investigated. Furthermore, functions of optimum trap-state densities (Nt) and charge carrier mobility (μn,p) in OAL have been performed to aid in increasing the diffusion length of excitons carriers (L(n,p)). These properties led to better photo generation and transport of charge carriers, decreasing the series resistance (RS), leading to lower bimolecular recombination, a long carrier lifetime (ζn,p), and consequently higher power conversion efficiency (PCE). The findings revealed that the proposed OSC structure achieves an excellent PCE of 10.28% for AZO as TCO with an 850 nm ultra-thick OAL under AM 1.5G light irradiation. Hence, a better fabrication process for efficient OSC could also be improved by the optimization of all these critical factors for future research.

show abstract

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

The role of a highly optimized approach with superior transparent conductive oxide anode towards efficient organic solar cell

Gogoi

Das

2023

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…Hence, in order to get more information about our fabricated solar cells, we performed numerical simulations using solar cells capacitance software (version 3.3.07). The program is a one-dimensional solar device simulator that was developed by Prof. Burgelman at the University of Gent, Belgium. , The simulation was based on the effective medium model, , in which the active layer (composed of the donor and acceptor materials) is described by a single semiconducting layer. Selective contacts or buffer layers are introduced to provide the migration driving force for the photo-generated electron–hole pairs generated. , The material properties for the effective medium are obtained from either PTB7-Th, ITIC-Th, or an average of both and are summarized in Table .…”

Section: Resultsmentioning

confidence: 99%

“…The program is a one-dimensional solar device simulator that was developed by Prof. Burgelman at the University of Gent, Belgium. 47,48 The simulation was based on the effective medium model, 49,50 in which the active layer (composed of the donor and acceptor materials) is described by a single semiconducting layer. Selective contacts or buffer layers are introduced to provide the migration driving force for the photo-generated electron−hole pairs generated.…”

Section: Resultsmentioning

confidence: 99%

Plasmon-Enhanced Charge Transport Processes for Improved Collection of Photo-Current in Polymer Solar Cells

Adedeji

García-Rodríguez

Davies

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Silver sulfide (Ag 2 S) nanoparticles were incorporated into the electron transport layer (ETL) of thin-film organic photovoltaic cells to assist in light trapping and improve charge-transport processes. The solar cells were fabricated in an inverted device architecture design using a solar absorber composed of donor polymer poly [4,8bis(5-(2-ethylhexyl)The Ag 2 S nanoparticles were dispersed in the zinc oxide nano-ink suspension, at varying concentrations from 0.00 to 0.55% by weight, to be able to determine the optimum doping level for the best solar cell performances. The nanoparticles exhibit local surface plasmon resonance absorption and produce intense local electric field in the polymer matrix, which is beneficial to efficient exciton dissociation. Consequently, improved device performances were recorded at various effective device areas. The measured electrical and optical properties of the NP-doped polymer films showed improved characteristics for energy harvesting. This investigation demonstrates the effective collection of photo-generated charges using Ag 2 S nanoparticle-doped ETLs in NFA-based thin-film organic solar cells.

show abstract

“…On the other hand, a limited range of optical absorptions, a thin layer of polymer solar absorber, and short exciton diffusion length in polymer medium determine the growth of PCE in PSC. Moreover, the low carrier mobilities of the conducting polymers and the short lifetime of the exciton restrict the active layer thickness below 200 nm, so it is not possible to boost optical absorption by merely increasing the thickness [8][9][10][11][12][13][14]. Thus, in addition to the absorber layer composition and device architecture, the PCE in TFPSCs depends on the augmentation of the open-circuit voltage and the fill factor (FF) [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Suppressing charge recombination in disordered polymers blend medium

Hamed

Abdallah

Mola

2023

J. Phys. D: Appl. Phys.

Self Cite

View full text Add to dashboard Cite

Charge recombination is one of the critical factors that inﬂuence the performance of thin ﬁlm polymer solar cells (TFPSC). In this investigation metal, plasmonic nano-particles are employed to suppress charge recombination and energy loss in TFPSC. Trimetallic nano-composite was successfully synthesized, composed of copper, nickel, and silver (Cu/Ni/Ag) using wet chemistry. The nano-composite was incorporated into polymer based solar absorber layers at diﬀerent concentrations. The absorber layer is a fullerene-based bulk-heterojunction design using poly-3-hexylthiophene (P3HT) donor polymer. The results show that the power conversion eﬃciency (PCE) of the device doped with nano-composite has improved by 85% compared to the undoped one. The incorporation of tri-metallic nano-composite into the polymer blend solar absorber resulted in enhanced optical absorption and improved collection of photo-current as reﬂected by recorded high short circuit current density (Jsc) and ﬁll factor (FF). The enhancement of the performance is due to the occurrence of local surface plasmon resonances in polymer medium. The experiment indicated that there is some increment in an open circuit voltage, which is attributed to the low energy losses as the result of improved exciton dissociation, charge carrier transport, and collection.

show abstract

Numerical investigation of the effects of copper sulfide nanoparticles on hole transport layer of thin-film organic solar cells

Cited by 7 publications

References 39 publications

The role of a highly optimized approach with superior transparent conductive oxide anode towards efficient organic solar cell

The role of a highly optimized approach with superior transparent conductive oxide anode towards efficient organic solar cell

Plasmon-Enhanced Charge Transport Processes for Improved Collection of Photo-Current in Polymer Solar Cells

Suppressing charge recombination in disordered polymers blend medium

Contact Info

Product

Resources

About