Improving morphology of P3HT:PCBM bulk heterojunction solar cells with anisotropic shaped silica nanoparticles

Garg, Mohit; Ghosh, Sarbani; Shukla, Amarish Kumar; Sharma, Shakti; Kumar, Amit; Chopra, Vikram

doi:10.1016/j.matpr.2022.11.228

Cited by 2 publications

(4 citation statements)

References 61 publications

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“…Figure 2 depicts a typical XRD pattern for pure P3HT:PCBM and P3HT:PCBM:Nb blends that have been generated with varying concentrations of Nb nanoparticles (2, 4, 6, and 8 mg/mL). The produced films exhibit two diffraction peaks, which occur at 2

= 5.49° and 10.81°, and are indexed to the (100) and (200) planes, respectively, which is in good agreement with previous works [ 6 , 7 ].…”

Section: Resultssupporting

confidence: 91%

“…Energy is converted in OSCs by the generation of excitons upon light absorption, their subsequent diffusion, their dissociation into free carriers at the junction between the donor and acceptor, and their subsequent transport to the corresponding electrodes [ 4 , 5 ]. Blends of regioregular poly(3-hexylthiophene-2,5-diyl) (P3HT) and fullerene derivative [6,6]-phenyl C61 butyric acid methyl ester (PCBM) are some of the most extensively investigated D-A combinations reported [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

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Doping with Niobium Nanoparticles as an Approach to Increase the Power Conversion Efficiency of P3HT:PCBM Polymer Solar Cells

et al. 2023

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Metal additive processing in polymer: fullerene bulk heterojunction systems is recognized as a viable way for improving polymer photovoltage performance. In this study, the effect of niobium (Nb) metal nanoparticles at concentrations of 2, 4, 6, and 8 mg/mL on poly(3-hexylthiophene-2,5-diyl) (P3HT)-6,6]-phenyl C61-butyric acid methyl ester (PCBM) blends was analyzed. The effect of Nb volume concentration on polymer crystallinity, optical properties, and surface structure of P3HT and PCBM, as well as the enhancement of the performance of P3HT:PC61BM solar cells, are investigated. Absorption of the P3HT:PC61BM mix is seen to have a high intensity and a red shift at 500 nm. The reduction in PL intensity with increasing Nb doping concentrations indicates an increase in PL quenching, suggesting that the domain size of P3HT or conjugation length increases. With a high Nb concentration, crystallinity, material composition, surface roughness, and phase separation are enhanced. Nb enhances PCBM’s solubility in P3HT and decreases the size of amorphous P3HT domains. Based on the J–V characteristics and the optoelectronic study of the thin films, the improvement results from a decreased recombination current, changes in morphology and crystallinity, and an increase in the effective exciton lifespan. At high doping concentrations of Nb nanoparticles, the development of the short-circuit current (JSC) is associated with alterations in the crystalline structure of P3HT. The highest-performing glass/ITO/PEDOT:PSS/P3HT:PCBM:Nb/MoO3/Au structures have short-circuit current densities (JSC) of 16.86 mA/cm2, open-circuit voltages (VOC) of 466 mV, fill factors (FF) of 65.73%, and power conversion efficiency (µ) of 5.16%.

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= 5.49° and 10.81°, and are indexed to the (100) and (200) planes, respectively, which is in good agreement with previous works [ 6 , 7 ].…”

Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Doping with Niobium Nanoparticles as an Approach to Increase the Power Conversion Efficiency of P3HT:PCBM Polymer Solar Cells

et al. 2023

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“…This challenge appears to be a primary hurdle in advancing the development of solar cells with a BHJ structure [15,16]. This performance depends on several parameters, such as the structure, morphology, and light absorption capacity of the active layer [17], as well as the mobility of the charge carriers and their transfer to the electrodes of the solar cell. Manufacturing conditions also have a major influence on the final characteristics of the layer obtained [18].…”

Section: Introductionmentioning

confidence: 99%

“…Their research elucidates that the augmentation is attributed to the amplified optical path within the active layer, facilitated by the reflection and scattering of light induced by the presence of nanoparticles. Another study involves doping the active layer to alter its morphology and enhance the solar cell's efficiency [17,20], Recent research has focused on improving the open circuit voltage (V oc ) of P3HT-based solar cells by exploiting the advantages of non-fullerene acceptors [21]. These acceptors are characterised by their broad absorption spectrum and tunable energy levels, making them promising candidates for improving the performance of OSCs.…”

Section: Introductionmentioning

confidence: 99%

Advancements in P3HT:PCBM solar cells through experimental and simulated techniques

Chargui,

Lmai,

Erraji

2024

J. Opt.

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Organic solar cells are a promising alternative in photovoltaics due to their low manufacturing cost and flexibility. In this study, we developed an organic solar cell of structure (ITO/PEDOT:PSS/P3HT:PCBM/Al) where the active layer is represented by P3HT:PCBM. Experimental studies revealed that this layer has an energy gap of 1.9 eV and a good absorption coefficient of 〖3×10〗^5 〖cm〗^(-1). Using analytical and experimental methods based on (J-V-T) curves, we extracted the key parameters of our device, including parasitic resistances (R_s and R_sh), ideality factor (n), and Schottky potential barrier (ϕ_B) at different temperatures. Also the charge transport mechanism in our junction is identified in this study. We then used simulation to evaluate the performance of our solar cell, obtaining an initial efficiency of 2.13%, in line with experimental results from other research. Our results confirm the feasibility of our theoretical approach, with performance consistent with previous work. However, by introducing an ETL layer (PFN-Br or PDINO), we were able to improve efficiency up to 4.25%. These results highlight the importance of optimising intermediate layers to maximise the efficiency of organic solar cells.

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Improving morphology of P3HT:PCBM bulk heterojunction solar cells with anisotropic shaped silica nanoparticles

Cited by 2 publications

References 61 publications

Doping with Niobium Nanoparticles as an Approach to Increase the Power Conversion Efficiency of P3HT:PCBM Polymer Solar Cells

Doping with Niobium Nanoparticles as an Approach to Increase the Power Conversion Efficiency of P3HT:PCBM Polymer Solar Cells

Advancements in P3HT:PCBM solar cells through experimental and simulated techniques

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