Journal ArticleDOI
Electrode Transport Layer–Metal Electrode Interface Morphology Tailoring for Enhancing the Performance of Perovskite Solar Cells
TLDR
In this article , a 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.Abstract:
In the field of photovoltaics, methylammonium lead iodide (MAPbI3) 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. read more
Citations
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Journal ArticleDOI
Studying VOC in lead free inorganic perovskite photovoltaics by tuning energy bandgap and defect density
TL;DR: In this article , the SCAPS simulation was carried out on FTO/TiO 2 /CsSnI 3 /spiro-OMeTAD/Au by altering E g , energetic position of conduction and valence band, defect density, and thickness of semiconductor.
Proceedings ArticleDOI
Flexible Organic Photodetector with High Responsivity in Visible Range
TL;DR: In this article , a polyethylene terephthalate (PET) based organic photodetector (OPD) with bilayer heterojunction as active layer involving copper phthalocyanine (CuPc) and Phenyl-C60-butyric acid methyl-ester (PC60BM), has been fabricated for flexible light detection purposes.
Journal ArticleDOI
Dendrimer Modification Strategy Based on the Understanding of the Photovoltaic Mechanism of a Perovskite Device under Full Sun and Indoor Light.
TL;DR: In this paper , poly(amidoamine) (PAMAM) dendrimers with multiple passivation sites were introduced to repair the leakage channels in the devices, taking into account the characteristics of IPVs that are extremely sensitive to nonradiative recombination and shunt resistance.
Broadband Flexible CuPc–PCBM Photodetector With Responsivity in Different Spectral Regions
TL;DR: In this article , a flexible organic photodetectors with diode architecture involving copper phthalocyanine (CuPc) as donor and Phenyl-C60-butyric acid methyl ester (PC60BM) as acceptor has been fabricated.
Journal ArticleDOI
Broadband Flexible CuPc-PCBM Photodetector with Responsivity in different Spectral Regions
TL;DR: In this article , a flexible organic photodetector (OPD) with diode architecture involving copper phthalocyanine (CuPc) as the donor and Phenyl-C
References
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The Scherrer Formula for X-Ray Particle Size Determination
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Unusual defect physics in CH3NH3PbI3 perovskite solar cell absorber
TL;DR: In this paper, the defect properties of thin-film solar cells based on Methylammonium triiodideplumbate (CH3NH3PbI3) halide perovskites have been investigated.
Journal ArticleDOI
Capacitive Dark Currents, Hysteresis, and Electrode Polarization in Lead Halide Perovskite Solar Cells
Osbel Almora,Isaac Zarazua,Elena Mas-Marzá,Iván Mora-Seró,Juan Bisquert,Juan Bisquert,Germà Garcia-Belmonte +6 more
TL;DR: Current-voltage curves and capacitive responses of perovskite-based solar cells are connected and the observed hysteretic effect in the dark current originates from the slow capacitive mechanisms.
Journal ArticleDOI
Perovskite solar cells: film formation and properties
Tze-Bin Song,Qi Chen,Huanping Zhou,Chengyang Jiang,Hsin-Hua Wang,Yang Yang,Yongsheng Liu,Jingbi You +7 more
TL;DR: In this article, the current status of CH3NH3PbX3 (X = I, Br, Cl) based photovoltaic devices and their properties are discussed.
Journal ArticleDOI
On Mott-Schottky analysis interpretation of capacitance measurements in organometal perovskite solar cells
TL;DR: In this paper, the depletion layer capacitance of perovskite-based solar cells (PSCs) is analyzed using the Mott-Schottky (MS) analysis.