AZO-Ag-AZO transparent electrode for amorphous silicon solar cells

Theuring, Martin; Vehse, Martin; Maydell, Karsten von; Agert, Carsten

doi:10.1016/j.tsf.2014.02.042

Cited by 47 publications

(20 citation statements)

References 19 publications

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“…The TRPL of ZnO:Sn hillock structures was measure to characterize the carrier dynamics process. 10,12,35,36 Then TRPL of RS1 and RS2 were measured to compare with that of the ZnO:Sn hillock. The inset of Figure 6 shows the TRPL mapping image of the ZnO:Sn for the exciton emission band.…”

Section: Resultsmentioning

confidence: 99%

Optical and Exciton Dynamical Properties of a Screw-Dislocation-Driven ZnO:Sn Microstructure

Dai

Wang

et al. 2015

ACS Appl. Mater. Interfaces

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Screw dislocation plays a critical role in crystal growth and significantly affects the carrier dynamics process of luminescent semiconductor materials. In this paper, we report a novel screw-dislocation-induced ZnO:Sn hillock microstructure. The detailed growth process and possible formation mechanism of screw dislocation are demonstrated. The temperature-dependent photoluminescence reveals the free exciton recombination emission mechanism of the ZnO:Sn hillock microstructure. By comparing time-resolved photoluminescence spectra with those of two other samples without screw dislocations, it is found that the screw dislocation in the ZnO:Sn microstructures effectively decreases the carrier lifetime. In addition, UV Fabry-Perot lasing action is observed from the ZnO:Sn hillock microstructure, and the numerical simulation of the standing wave pattern and light intensity distribution further confirm the Fabry-Perot lasing mechanism. Therefore, ZnO:Sn can be utilized as a UV laser gain medium, and its optical properties can be modulated by screw dislocation.

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Section: Resultsmentioning

confidence: 99%

Optical and Exciton Dynamical Properties of a Screw-Dislocation-Driven ZnO:Sn Microstructure

Dai

Wang

et al. 2015

ACS Appl. Mater. Interfaces

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“…28 Thus, a-IGZO was reported to be used as an efficient ETL in organic devices. [31][32][33][34][35][36][37][38][39][40][41] It was observed that AZO/Ag/AZO (30 nm/15 nm/30 nm) films on glass substrates showed an average visible transmittance of 85.4%, a sheet resistance of 3.2 Ω/sq, and an infrared reflection rate of 97%. 29 Kim et al 30 31 and so AZO/Ag/AZO multilayer films have been widely investigated.…”

Section: Introductionmentioning

confidence: 99%

Inverted Organic Solar Cells Fabricated with Room‐Temperature‐deposited Transparent Multilayer Electrodes

Kim

Kwon

et al. 2017

Bulletin Korean Chem Soc

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We investigated the electrical, optical, and structural properties of Al-doped ZnO (AZO)/Ag/AZO and indium gallium zinc oxide (IGZO)/Ag/IGZO multilayer films, and the performance of inverted organic solar cells (OSCs) fabricated with Sn-doped indium oxide (ITO), AZO/Ag/AZO, and IGZO/Ag/IGZO electrodes. Even though deposited at room temperature, AZO/Ag/AZO (36 nm/19 nm/36 nm) and IGZO/ Ag/IGZO (39 nm/19 nm/39 nm) multilayer films showed sheet resistances of 4.1 and 4.2 Ω/sq, resistivities of 3.3 × 10 −5 and 4.1 × 10 −5 Ω cm, and transmittances of 93 and 88% at 550 nm, respectively. Figures of merit (FOMs) were obtained to be 99.9 and 49.9 × 10 −3 Ω −1 for the AZO/Ag/AZO and IGZO/ Ag/IGZO films, respectively. Inverted OSCs fabricated using the as-deposited AZO/Ag/AZO and IGZO/ Ag/IGZO electrodes produced power conversion efficiencies (PCEs) of 2.4 and 2.6%, respectively, while that with high-temperature annealed ITO electrode gave a PCE of 3.2%.

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“…Different structures have been proposed in the literature for improving the electrical performance of the front electrode, such as oxide/metal/oxide stacks [9][10][11][12][13], novel metal mesh substrate [14,15], laser-textured ITO films [16] and ITO/AZO bilayer films [17][18][19][20]. The oxide/metal/oxide stacks (e.g., AZO/Ag/AZO) were prepared by inserting a very thin metallic layer between the AZO layers.…”

Section: Introductionmentioning

confidence: 99%

“…The oxide/metal/oxide stacks (e.g., AZO/Ag/AZO) were prepared by inserting a very thin metallic layer between the AZO layers. Although obtaining a low resistivity, the stacks generally suffer from greatly reduced transparency due to the Ag layer and thus result in a low current density of the solar cells [10]. With regard to the metal mesh substrate, it is challenging to achieve good ohmic contact between the metal mesh and the absorber, and thus a sufficiently thick TCO layer is still required as the buffer layer [14].…”

Section: Introductionmentioning

confidence: 99%

Surface texturing studies of bilayer transparent conductive oxide (TCO) structures as front electrode for thin-film silicon solar cells

Yan

Aberle

et al. 2015

J Mater Sci: Mater Electron

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Surface textured transparent conductive oxide (TCO) thin films are widely used as the front electrode for thin-film silicon solar cells, as they can simultaneously provide good electrical conductance and optical management which improves the photon absorption via light scattering. In this paper, we report on bilayer TCO structures with enhanced electrical performance and good scattering properties. The bilayer TCO, made up of a highly conductive tin-doped indium oxide (ITO) layer and an etchable aluminium-doped (AZO) or intrinsic zinc oxide layer, are deposited onto soda-lime glass sheets via magnetron sputtering. The surface morphology of the ZnO films is subsequently modified using hydrochloric acid (HCl) etching. As for the bilayer TCO structure, the ITO mainly functions as the electrical layer and the surface textured ZnO acts as the optical layer for light scattering. Compared to single-layer AZO films, bilayer TCO films show different structural properties, which leads to disparate etching processes and thus different texturing properties.

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AZO-Ag-AZO transparent electrode for amorphous silicon solar cells

Cited by 47 publications

References 19 publications

Optical and Exciton Dynamical Properties of a Screw-Dislocation-Driven ZnO:Sn Microstructure

Optical and Exciton Dynamical Properties of a Screw-Dislocation-Driven ZnO:Sn Microstructure

Inverted Organic Solar Cells Fabricated with Room‐Temperature‐deposited Transparent Multilayer Electrodes

Surface texturing studies of bilayer transparent conductive oxide (TCO) structures as front electrode for thin-film silicon solar cells

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