Multipositional Silica-Coated Silver Nanoparticles for High-Performance Polymer Solar Cells

Choi, Hyosung; Lee, Jung-Pil; Ko, Seo‐Jin; Jung, Jaewoo; Park, Hyungmin; Yoo, Seungmin; Park, Okji; Jeong, Jong‐Ryul; Park, Soo‐Jin; Kim, Jin Young

doi:10.1021/nl400730z

Cited by 244 publications

(228 citation statements)

References 34 publications

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“…When the bare nanorod concentration further increased from 0.25 wt% to 1 wt%, the PCE, J SC , FF and V OC all declined. A decrease in V OC has also been observed when bare Ag nanoparticles were added at the interface between the hole transport layer and the BHJ of a PSC [26]. We attribute the decrease in photovoltaic parameters in our devices to increased charge carrier recombination at the surface of the bare Au nanorods which creates the internal shunts within the BHJ active layer [27].…”

Section: Comparison Of Au-silica Nanospheres and Nanorodssupporting

confidence: 57%

“…The charge carrier recombination induced by bare Au nanorods was confirmed by light intensity dependence of short-circuit current density (see Section 3.2). Another possible reason is the increased quenching of excitons upon incorporation of Au [26]. Therefore, there is a compromise between the charge carrier recombination and plasmonic effect in the device embedded with the bare Au nanorod.…”

Section: Comparison Of Au-silica Nanospheres and Nanorodsmentioning

confidence: 99%

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Influence of gold-silica nanoparticles on the performance of small-molecule bulk heterojunction solar cells

Kyaw

Peng

et al. 2015

Organic Electronics

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a b s t r a c tLight trapping by gold (Au)-silica nanospheres and nanorods embedded in the active layer of small-molecule (SM) organic solar cell has been systematically compared. Nanorod significantly outperforms nanosphere because of more light scattering and higher quality factor for localized surface plasmon resonance (LSPR) triggered by nanorods. The optimum concentration of nanorod was characterized by charge carrier transport and morphology of the active layers. At optimum nanorod concentration, almost no change in the morphology of the active layer reveals that LSPR and scattering effects rather than the morphology are mainly responsible for the enhanced power conversion efficiency. In addition, the preliminary lifetime studies of the SM solar cells with and without Au-silica nanorods were conducted by measuring the current density-voltage characteristics over 20 days. The results show that plasmonic device with nanorods has no adverse impact on the device stability.

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Section: Comparison Of Au-silica Nanospheres and Nanorodssupporting

confidence: 57%

Section: Comparison Of Au-silica Nanospheres and Nanorodsmentioning

confidence: 99%

Influence of gold-silica nanoparticles on the performance of small-molecule bulk heterojunction solar cells

Kyaw

Peng

et al. 2015

Organic Electronics

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“…By incorporating Ag nanoprisms into P3HT:PCBM active layer and further studying the surface plasmon Raman spectrum (SERS) to better study the plasmonic-enhanced OSCs [119], it is found that the Raman intensity of polymer (active layer) will be drastically enhanced if the plasmonic peak of the metal nanomaterials incorporated into the active layer matches well with the laser wavelength of the Raman instrument. In order to provide an electrically insulating surface that does not interfere with carrier generation and transport inside the active layer, some work introduce silica-coated Ag or Au nanospheres into the active layer for high performance OSCs [8,93]. Most of these studies show that the shape of the metal nanomaterials is a critical factor in maximizing the light scattering and trapping in OSCs.…”

Section: Optical Effectsmentioning

confidence: 99%

MULTI-PHYSICAL PROPERTIES OF PLASMONIC ORGANIC SOLAR CELLS (Invited Paper)

Choy¹,

Sha²,

Li³

et al. 2014

PIER

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Abstract-Organic solar cells (OSCs) have recently attracted considerable research interest. For typical OSCs, it is highly desirable to have optically thick and physically thin thickness for strong light absorption and efficient carrier collection respectively. In the meantime, most organic semiconductors have short exciton diffusion length and low carrier mobility [1][2][3]. As a consequence, the active layers of OSCs are generally thin with a thickness of a few hundred nanometers to ensure the efficient extraction of carriers, hence limiting the total absorption of incident light. Optimizing both the optical and electrical (i.e., multi-physical) properties of OSCs is in demands for rationally designed device architectures. Plasmonic nanomaterials (e.g., metallic nanoparticles [4-6], nanorods [7,8], nanoprisms [9, 10], etc.) have recently been introduced into different layers of multilayered solar cells to achieve highly efficient light harvesting. The multilayered solar cells structures commonly have active layer, carrier (electron and hole) transport layer and electrode (anode and cathode). Through the localized plasmonic resonances (LPRs) [11][12][13][14][15][16] from metallic nanomaterials, very strong near-fields will be generated, which can provide a large potential for enhancing optical absorption in the multilayered OSCs. Besides the optical effects, it has been reported that metallic nanomaterials can modify the morphology, interface properties as well as the electrical properties of OSCs which will significantly modify the performances of OSCs [17][18][19][20][21][22][23]. In this article, the effects of various optical resonance mechanisms and the theoretical studies of the multiphysical properties of OSCs will be reviewed. Meanwhile, the experimental optical and electrical effects of metallic nanomaterials incorporated in different layers of OSCs will be studied. The morphology and interface effects of metallic nanomaterials in the carrier transport layers on the performances of OSCs will also be described.

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“…Researchers have explored the possibility of placing nanoparticles on the surface [3,4,8], rear [9] and within the active region [10] of thin film solar cells. Multiple arrays of nanostructures placed either on the front, rear or both are used to further enhance the absorption efficiency [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Also, a loss in performance is possible if the metallic nanoparticles are introduced in the bulk due to increased recombination [15,16]. However, it is possible to prevent the metallic nanoparticles from acting as recombination centers either by using room temperature processes such as microcontact printing [17] or by passivating it with a dielectric coating [10]. Motivated by these facts, in this paper, we enhance the light absorption efficiency of a thin film a-Si solar cell by placing periodic arrays of silver nanoparticles at the surface and within the active region of the cell.…”

Section: Introductionmentioning

confidence: 99%

Multilayer nanoparticle arrays for broad spectrum absorption enhancement in thin film solar cells

Krishnan¹,

Das²,

Krishna³

et al. 2014

Opt. Express

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Abstract:In this paper, we present a theoretical study on the absorption efficiency enhancement of a thin film amorphous Silicon (a-Si) photovoltaic cell over a broad spectrum of wavelengths using multiple nanoparticle arrays. The light absorption efficiency is enhanced in the lower wavelengths by a nanoparticle array on the surface and in the higher wavelengths by another nanoparticle array embedded in the active region. The efficiency at intermediate wavelengths is enhanced by the simultaneous resonance from both nanoparticle layers. We optimize this design by tuning the radius of particles in both arrays, the period of the array and the distance between the two arrays. The optimization results in a total quantum efficiency of 62.35% for a 0.3 µm thick a-Si substrate.

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Multipositional Silica-Coated Silver Nanoparticles for High-Performance Polymer Solar Cells

Cited by 244 publications

References 34 publications

Influence of gold-silica nanoparticles on the performance of small-molecule bulk heterojunction solar cells

Influence of gold-silica nanoparticles on the performance of small-molecule bulk heterojunction solar cells

MULTI-PHYSICAL PROPERTIES OF PLASMONIC ORGANIC SOLAR CELLS (Invited Paper)

Multilayer nanoparticle arrays for broad spectrum absorption enhancement in thin film solar cells

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