Plasmonic Structure Enhanced Exciton Generation at the Interface between the Perovskite Absorber and Copper Nanoparticles

Chang, Sheng Hsiung; Lin, Kuen Feng; Chiang, Chien Hung; Chen, Sheng Hui; Wu, Chun Guey

doi:10.1155/2014/128414

Cited by 15 publications

(12 citation statements)

References 12 publications

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“…Additionally, the interference peak wavelength in the transparent spectra of the MAPbI 3 thin films increases with the number of the filtering process for the P3CT-Na solution. The changes in the absorbance spectra of the MAPbI 3 thin films means that the thickness of the MAPbI 3 thin film increases with the number of the filtering process for the P3CT-Na solution [ 27 ]. Figure 8 presents the photoluminescence (PL) spectra of the MAPbI 3 /P3CT-Na/ITO/glass samples.…”

Section: Resultsmentioning

confidence: 99%

19% Efficient P3CT-Na Based MAPbI3 Solar Cells with a Simple Double-Filtering Process

Chiang

Ke²,

Chandel³

et al. 2021

Polymers

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A high-efficiency inverted-type CH3NH3PbI3 (MAPbI3) solar cell was fabricated by using a ultrathin poly[3-(4-carboxybutyl)thiophene-2,5-diyl]-Na (P3CT-Na) film as the hole transport layer. The averaged power conversion efficiency (PCE) can be largely increased from 11.72 to 18.92% with a double-filtering process of the P3CT-Na solution mainly due to the increase in short-circuit current density (JSC) from 19.43 to 23.88 mA/cm2, which means that the molecular packing structure of P3CT-Na thin film can influence the formation of the MAPbI3 thin film and the contact quality at the MAPbI3/P3CT-Na interface. Zeta potentials, atomic-force microscopic images, absorbance spectra, photoluminescence spectra, X-ray diffraction patterns, and Raman scattering spectra are used to understand the improvement in the JSC. Besides, the light intensity-dependent and wavelength-dependent photovoltaic performance of the MAPbI3 solar cells shows that the P3CT-Na thin film is not only used as the hole transport layer but also plays an important role during the formation of a high-quality MAPbI3 thin film. It is noted that the PCE values of the best P3CT-Na based MAPbI3 solar cell are higher than 30% in the yellow-to-near infrared wavelength range under low light intensities. On the other hand, it is predicted that the double-filtering method can be readily used to increase the PCE of polymer based solar cells.

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Section: Resultsmentioning

confidence: 99%

19% Efficient P3CT-Na Based MAPbI3 Solar Cells with a Simple Double-Filtering Process

Chiang

Ke²,

Chandel³

et al. 2021

Polymers

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“…. Absorption spectra of nanoplasmonic structures embedded in perovskite absorber with different structure parameters [39].…”

Section: Exciton Properties In the Interface Between Metal Particles mentioning

confidence: 99%

“…Transmittance spectra of CH 3 NH 3 PbI 3 /substrate[39].Optical, Excitonic, and Electronic Properties of CH 3 NH 3 PbI 3 Thin Films and Their Application in Photovoltaics http://dx.doi.org/10.5772/61278 Refractive index and extinction coefficient of CH 3 NH 3 PbI 3 thin film[39].…”

mentioning

confidence: 99%

Optical, Excitonic, and Electronic Properties of CH3NH3PbI3 Thin Films and Their Application in Photovoltaics

Chang¹,

Cheng²,

Chen³

et al. 2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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In the past two years, the highest power conversion efficiency of perovskite absorber P" based photovoltaics has been . %. The P" can be fabricated on flat substrates for example, ZnO, TiO , and PEDOT PSS using solution processes, which have a low-cost advantage in terms of industry production. In this report, the recent advances of P"-based photovoltaics will be mentioned. Then, the optoelectronic properties of P", material fabrication, and photovoltaic performance will be discussed. On the other hand, we used scanning electron microscopy, two-dimensional X-ray diffractometer, and photoluminescence spectroscopy to investigate the fundamental properties of CH NH PbI thin films fabricated with and without toluene washing treatment, which provides an assessment of the development potential of P"-based photovoltaics.

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“…It is amazing that the high-efficiency perovskite solar cells can be realized by using the low-temperature solution-processed methods because the presence of high-density defects in the active layer [20,21,22] usually can simultaneously reduce the V OC , J SC and fill factor (FF) of solar cells. It is well known that high-efficiency perovskite solar cells can be explained mainly due to the large absorption coefficient [23,24], moderate refractive index [25,26], low exciton binding energy [27,28], long exciton (carrier) lifetime [29,30] and long exciton (carrier) diffusion length [31,32]. In addition, the high PCE of perovskite solar cells also relieson the efficient energy transfer at the perovskite/electron transport layer (ETL) and perovskite/hole transport layer (HTL) interfaces.…”

Section: Introductionmentioning

confidence: 99%

The Way to Pursue Truly High-Performance Perovskite Solar Cells

Thakur

Chiang

et al. 2019

Nanomaterials

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The power conversion efficiency (PCE) of single-junction solar cells was theoretically predicted to be limited by the Shockley–Queisser limit due to the intrinsic potential loss of the photo-excited electrons in the light absorbing materials. Up to now, the optimized GaAs solar cell has the highest PCE of 29.1%, which is close to the theoretical limit of ~33%. To pursue the perfect photovoltaic performance, it is necessary to extend the lifetimes of the photo-excited carriers (hot electrons and hot holes) and to collect the hot carriers without potential loss. Thanks to the long-lived hot carriers in perovskite crystal materials, it is possible to completely convert the photon energy to electrical power when the hot electrons and hot holes can freely transport in the quantized energy levels of the electron transport layer and hole transport layer, respectively. In order to achieve the ideal PCE, the interactions between photo-excited carriers and phonons in perovskite solar cells has to be completely understood.

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Plasmonic Structure Enhanced Exciton Generation at the Interface between the Perovskite Absorber and Copper Nanoparticles

Cited by 15 publications

References 12 publications

19% Efficient P3CT-Na Based MAPbI3 Solar Cells with a Simple Double-Filtering Process

19% Efficient P3CT-Na Based MAPbI3 Solar Cells with a Simple Double-Filtering Process

Optical, Excitonic, and Electronic Properties of CH3NH3PbI3 Thin Films and Their Application in Photovoltaics

The Way to Pursue Truly High-Performance Perovskite Solar Cells

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