Tailoring optoelectronic properties of CH3NH3PbI3 perovskite photovoltaics using al nanoparticle modified PC61BM layer

Kesavan, Arul Varman; Rao, Arun D.; Ramamurthy, Praveen C.

doi:10.1016/j.solener.2020.03.038

Cited by 31 publications

(14 citation statements)

References 23 publications

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“…These attractive properties make them suitable candidates for different electronic and optical applications. The enhancement power conversion efficiency of perovskite solar cells has been reported by many researchers by the modification of electron and hole transport layers by the incorporation of metal nanoparticles . Thermal evaporation of silver (Ag) nanoparticles has been reported along with the effect of deposition parameters on film quality .…”

Section: Introductionmentioning

confidence: 99%

“…The enhancement power conversion efficiency of perovskite solar cells has been reported by many researchers by the modification of electron and hole transport layers by the incorporation of metal nanoparticles. 9 Thermal evaporation of silver (Ag) nanoparticles has been reported along with the effect of deposition parameters on film quality. 10 Many researchers have investigated the behavior of metal nanoparticles and shown reduction in the melting point of nanoparticles because of the lowering of particle size.…”

Section: Introductionmentioning

confidence: 99%

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Electrode Transport Layer–Metal Electrode Interface Morphology Tailoring for Enhancing the Performance of Perovskite Solar Cells

Nath

Ramamurthy

Mahapatra

et al. 2022

ACS Appl. Electron. Mater.

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In the field of photovoltaics, methylammonium lead iodide (MAPbI 3 ) is the most emerging light absorber material because of its excellent optoelectronic properties. Perovskite solar cells with P−I−N device architecture were fabricated with thermally evaporated metal electrodes from different sources like silver nanoparticles and bulk silver shots. Film topography, surface morphology, structure, and grain size were observed using various characterization techniques. Top electrodes with better roughness matching with the transport layer were obtained by thermal evaporation of metal nanopowder. Various electrical characterization techniques, including current density (J) vs voltage (V) and capacitance measurements, were carried out under light and dark conditions for investigating the device performance. Devices with electrodes thermally evaporated using nanopowder showed enhancement in device performance with a lower series resistance and a higher shunt resistance, as observed from J−V characteristics. An open-circuit voltage improvement of ∼14% and a power conversion efficiency enhancement of ∼13% have been observed. A considerable improvement in contact resistances has also been noted. The idea about the recombination of devices can be obtained from J−V measurements with varying illumination intensities. The higher carrier concentration in the device based on a Ag NP electrode can be related to the contribution of the less recombination because of the reduced number of traps. These findings support the purpose of using metal nanopowder instead of the bulk form of metals for thermally evaporated top electrodes in perovskite solar cells.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrode Transport Layer–Metal Electrode Interface Morphology Tailoring for Enhancing the Performance of Perovskite Solar Cells

Nath

Ramamurthy

Mahapatra

et al. 2022

ACS Appl. Electron. Mater.

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“…When such an electrode forms contact with the photoactive layer, a high density of the inactive interface is generally observed because of the soft nature of organic semiconductors . In particular, for perovskite devices, the thickness of the photoactive layer is approximately half a micron and its surface roughness is of the order of a micron . The use of the CPE results in high-density porosity and incompatibility of the carbon paste solvent with the photoactive layer. , These are the common challenges faced in these devices.…”

Section: Introductionmentioning

confidence: 99%

“…6 In particular, for perovskite devices, the thickness of the photoactive layer is approximately half a micron and its surface roughness is of the order of a micron. 7 The use of the CPE results in high-density porosity and incompatibility of the carbon paste solvent with the photoactive layer. 1,8 These are the common challenges faced in these devices.…”

Section: Introductionmentioning

confidence: 99%

Work Function-Tunable Amorphous Carbon–Silver Nanocomposite Hybrid Electrode for Optoelectronic Applications

Kesavan

Lee

Son

et al. 2021

ACS Appl. Mater. Interfaces

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Parameters such as electrode work function (WF), optical reflectance, electrode morphology, and interface roughness play a crucial role in optoelectronic device design; therefore, fine-tuning these parameters is essential for efficient end-user applications. In this study, amorphous carbon–silver (C–Ag) nanocomposite hybrid electrodes are proposed and fully characterized for solar photovoltaic applications. Basically, the WF, sheet resistance, and optical reflectance of the C–Ag nanocomposite electrode are fine-tuned by varying the composition in a wide range. Experimental results suggest that irrespective of the variation in the graphite–silver composition, smaller and consistent grain size distributions offer uniform WF across the electrode surface. In addition, the strong C–Ag interaction in the nanocomposite enhances the nanomechanical properties of the hybrid electrode, such as hardness, reduced modulus, and elastic recovery parameters. Furthermore, the C–Ag nanocomposite hybrid electrode exhibits relatively lower surface roughness than the commercially available carbon paste electrode. These results suggest that the C–Ag nanocomposite electrode can be used for highly efficient photovoltaics in place of the conventional carbon-based electrodes.

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“…However, the intrinsic low absorption of CH 3 NH 3 PbI 3 surpassing 770 nm will decrease the performance of perovskite solar cells 5 . Recent progress has shown that the light absorption of perovskite solar cells can be increased by introducing plasmonic metal nanostructures, eventually enhancing the photocurren t ( J sc ) 6 – 10 . The excitation of localized surface plasmon resonance (LSPR) of plasmonic nanostructures further improves the light absorption of perovskites, and both radiative and non-radiative effects of LSPR can enhance the optical properties of solar devices 11 , 12 .…”

Section: Introductionmentioning

confidence: 99%

Improved optical properties of perovskite solar cells by introducing Ag nanopartices and ITO AR layers

Chen

Sun

et al. 2021

Sci Rep

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Embedded noble metal nanostructures and surface anti-reflection (AR) layers affect the optical properties of methylammonium lead iodide (CH3NH3PbI3) perovskite solar cells significantly. Herein, by employing a combined finite element method and genetic algorithm approach, we report five different types of CH3NH3PbI3 perovskite solar cells by introducing embedded Ag nanoparticles within the CH3NH3PbI3 layer and/or top ITO cylinder grating as an AR layer. The maximum photocurrent was optimized to reach 23.56 mA/cm2, which was 1.09/1.17 times higher than Tran’s report/ flat cases. It is also comparable with values (23.6 mA/cm2) reported in the literature. The calculations of the electric field and charge carrier generation rate of the optimized solar cell further confirms this improvement than flat cases. It attributes to the synergistic effect of the embedded Ag nanoparticles and ITO AR layer. The results obtained herein hold great promise for future boosting the optical efficiency of perovskite solar cells.

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Tailoring optoelectronic properties of CH3NH3PbI3 perovskite photovoltaics using al nanoparticle modified PC61BM layer

Cited by 31 publications

References 23 publications

Electrode Transport Layer–Metal Electrode Interface Morphology Tailoring for Enhancing the Performance of Perovskite Solar Cells

Electrode Transport Layer–Metal Electrode Interface Morphology Tailoring for Enhancing the Performance of Perovskite Solar Cells

Work Function-Tunable Amorphous Carbon–Silver Nanocomposite Hybrid Electrode for Optoelectronic Applications

Improved optical properties of perovskite solar cells by introducing Ag nanopartices and ITO AR layers

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