TY - GEN
T1 - Advanced Light scattering through various textured glass surface morphologies in thin film silicon solar cells
AU - Hussain, Shahzada Qamar
AU - Tuan Le, Anh Huy
AU - Mallem, Kumar
AU - Park, Hyeongsik
AU - Ju, Minkyu
AU - Cho, Jaehyun
AU - Park, Jinjoo
AU - Cho, Eun Chel
AU - Cho, Young Hyun
AU - Kim, Youngkuk
AU - Yi, Junsin
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/26
Y1 - 2018/11/26
N2 - It has been a hot debate in recent time whether periodic or random TCO surface morphology showed better light scattering in silicon thin film solar cells (TFSCs). We report an advanced light scattering scheme by various textured glass surface morphologies with high transmittance, haze ratio in visible as well as in near infra-red (NIR) wavelength region for the applications of silicon TFSCs. Three different textured (trapezoid, pyramid and random) glass surface morphologies with high transmittance, rms roughness and haze ratios were selected. The textured glass surface morphologies showed higher optical transmittance (91.77 to 93.04%) as compared to bare glass transmittance (90.94%) in the visible wavelength region. It was observed that the haze ratio was reliant on the surface feature size, etching depth, spacing and rms roughness of glass surfaces. Multi-textured AZO films deposited on micro textured glass surfaces showed higher transmittance 83.78% and haze ratio of 65.06% in the visible wavelength region. The X-ray photoelectron spectroscopic analysis was performed in order to investigate changes in the composition of textured glass surfaces. Amorphous silicon (a-Si) TFSCs were fabricated on periodic and random textured glass surface morphologies showed higher current density (16.55 and 16.68 mA/cm2) and efficiency (9.61 and 9.79%), respectively. Due to higher transmittance, haze ratio, high rms roughness and better step coverage, we propose these textured glass surface morphologies for high efficiency amorphous and microcrystalline based silicon thin film solar cells.
AB - It has been a hot debate in recent time whether periodic or random TCO surface morphology showed better light scattering in silicon thin film solar cells (TFSCs). We report an advanced light scattering scheme by various textured glass surface morphologies with high transmittance, haze ratio in visible as well as in near infra-red (NIR) wavelength region for the applications of silicon TFSCs. Three different textured (trapezoid, pyramid and random) glass surface morphologies with high transmittance, rms roughness and haze ratios were selected. The textured glass surface morphologies showed higher optical transmittance (91.77 to 93.04%) as compared to bare glass transmittance (90.94%) in the visible wavelength region. It was observed that the haze ratio was reliant on the surface feature size, etching depth, spacing and rms roughness of glass surfaces. Multi-textured AZO films deposited on micro textured glass surfaces showed higher transmittance 83.78% and haze ratio of 65.06% in the visible wavelength region. The X-ray photoelectron spectroscopic analysis was performed in order to investigate changes in the composition of textured glass surfaces. Amorphous silicon (a-Si) TFSCs were fabricated on periodic and random textured glass surface morphologies showed higher current density (16.55 and 16.68 mA/cm2) and efficiency (9.61 and 9.79%), respectively. Due to higher transmittance, haze ratio, high rms roughness and better step coverage, we propose these textured glass surface morphologies for high efficiency amorphous and microcrystalline based silicon thin film solar cells.
KW - a-Si thin film solar cell
KW - Absorber layer
KW - Light scattering
KW - Multitextured AZO
KW - rms roughness
KW - μc -Si thin film solar cell
UR - https://www.scopus.com/pages/publications/85059910444
U2 - 10.1109/PVSC.2018.8547992
DO - 10.1109/PVSC.2018.8547992
M3 - Conference contribution
AN - SCOPUS:85059910444
T3 - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
SP - 3090
EP - 3096
BT - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Y2 - 10 June 2018 through 15 June 2018
ER -
