Biomimetic antireflection coating for efficiency enhancement of triple-junction solar cells utilizing nanosphere lithography

Chiu, Meng Yih; Chang, Fu−Yu; Chang, Che-Chun; Tsai, Ming-Tsung; Yu, Peichen

doi:10.1109/pvsc.2010.5616770

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Recently, a subwavelength structure (SWS) whose dimensions of surface morphology are smaller than the wavelength of incident light is thought to be a new antireflection material. [13][14][15][16][17][18][19][20][21][22][23][24] To further reduce reflection loss, SWS was proposed as a multilayer structure with graded refractive indices. Such graded refractive indices can make incident photons remain within the nanostructure.…”

Section: Introductionmentioning

confidence: 99%

Reducing the reflection of nanowhiskers on dielectric composite pyramids

Lin¹,

Wang²

2017

Jpn. J. Appl. Phys.

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A subwavelength structure was fabricated on a textured dielectric composite by nanolithography and dry etching. The facet of the textured surface was covered with many nanospheres as masks and then engraved into whiskerlike nanostructures. These nanowhiskers can absorb light efficiently, even under large-angle oblique illumination. When the nanowhisker structure was applied to solar cells, it provided 20.81% improvement in short-circuit current compared with a similar subwavelength structure, composed of a single-layer dielectric. At an incidence angle of 80°, the proposed solar cell achieved a 51.1% reduction in short-circuit current degradation.

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Section: Introductionmentioning

confidence: 99%

Reducing the reflection of nanowhiskers on dielectric composite pyramids

Lin¹,

Wang²

2017

Jpn. J. Appl. Phys.

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“…The sub-wavelength structure (SWS), in which the dimension of the surface morphology is smaller than the wavelength of incident light, has been considered as a new antireflection material. [9][10][11][12][13][14] However, it was noted that most of the SWSs form on the flat surface so that these nanostructures can distribute on the substrate uniformly. [15][16][17] Thus, they are incompatible with the current fabrication methods used in the solar cell industry.…”

Section: Introductionmentioning

confidence: 99%

Less Reflective Sub-Wavelength Structure Formed on Textured Surface Using Nanosphere Mask

Lin¹,

Juan²

2013

Jpn. J. Appl. Phys.

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In this study, a new sub-wavelength structure was made on a textured surface by using nanolithography and reactive ion etching. By oxygen plasma hydrophilization and drop-coating processes, we were able to place nanosphere masks on the facet of the textured surface uniformly and then the textured surface was dry-etched into a nanowhisker structure. These nanowhiskers can absorb incident light efficiently, even if they are illuminated at large incident angles. When this proposed sub-wavelength structure was applied to a solar cell, a high photocurrent can be achieved. The short-circuit current of the solar cell with the proposed structure was improved by 15.32% compared with that of the solar cell with an antireflection layer. Furthermore, short-circuit current degradation due to angular dependence was minimal for the proposed solar cell. At the incident angle of 80°, the proposed solar cell achieved a 68.5% enhancement of the photocurrent relative to that of the solar cell equipped with the conventional sub-wavelength structure.

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