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

Abstract

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.

Propagation characteristics of multilayered subwavelength gratings composed of metallic nanoparticles

“…In view of this, an absortion coefficient is defined to exhibit the response of the unity cell under different illuminations and geometric parameters changes 8 . Here the factor 2 E inc is the electric field intensity of the incident plane wave and 2 t E is the 2 2 t electric field transverse to the groove's mouth. In other reference 10 , related with our trends, the same formula is used with the same purposes.…”

Disain Geometri Reaktor Fotosel Cahaya Ruang

“…Berbagai polimer dipakai untuk meningkatkan efisiensi sel PV [22] . Kedua, aspek design panel permukaan sel PV, antara lain permukaan semikonduktor multilayer [23] , permukaan berpola/ nanocone [24] , permukaan nanowire [25,26)] , dan permukaan film [23,27] . Berbagai upaya meningkatkan efisiensi PV melalui modifikasi permukaan, bertujuan agar cahaya ditangkap dan diserap permukaan PV, atau tertahan lebih lama pada permukaan fotokatalis [28] .…”

Design and Modification of Copper Oxide Electrodes for Improving Conversion Coefficient Indoors Lights (PV-Cell) Photocells

“…Various polymers are used to increase the efficiency of PV cells [12]. Second, the design aspects of the surface panel PV cells, among other multilayer semiconductor surface [13], the surface of the patterned/nanocone [14], the surface of the nanowire [15; 16], and the film surface [13; 17]. Various efforts to improve the efficiency PV through surface modification, intended to make the light captured and absorbed by the surface of the PV, or retained longer on the surface of the photocatalyst [18].…”