Excellent light-capture capability of trilobal SiNW for ultra-high <i>J</i><sub>SC</sub> in single-nanowire solar cells

Zhongliang Gao; Guilu Lin; Yupeng Zheng; Na Sang; Yingfeng Li; Lei Chen; Meicheng Li

doi:10.1364/PRJ.385867

Photonics Research, Volume. 8, Issue 6, 995(2020)

Excellent light-capture capability of trilobal SiNW for ultra-high J_SC in single-nanowire solar cells

Zhongliang Gao¹, Guilu Lin², Yupeng Zheng¹, Na Sang², Yingfeng Li¹, Lei Chen², and Meicheng Li^1、*

¹State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing 102206, China

²School of Mathematics and Physics, North China Electric Power University, Beijing 102206, China

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Fig. 1. Schematic diagram of trilobal SiNWs. (a) Assembly process, geometric relationship of top view, and (b) 3D view and top view with different equivalent scales.

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Fig. 2. (a) Absorption efficiency, (b) electric field distribution in yz plane, (c) light-absorption spectral power under AM 1.5 G solar spectrum, and (d) total absorption and obtainable JSC with cylindrical and trilobal SiNWs with the same cross section of 3631 nm2 and height of 0.3 μm.

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Fig. 3. Absorption efficiency of cylindrical and trilobal SiNWs with different (a) cross sections and (b) heights. The change of the cross section is through changing the diameter of the cylindrical SiNW and the width of the blade of the trilobal SiNW. Total absorption and obtainable JSC of cylindrical and trilobal SiNWs with different (c) cross sections and (b) heights.

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Fig. 4. Absorption efficiency of (a) cylindrical and (b) trilobal SiNWs with different incident angles, (c) diagram of two kinds of SiNWs with different incident angles, and (d) total absorption and obtainable JSC with different incident angles.

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Fig. 5. Absorption efficiency (σabs/σgeom) spectra of trilobal SiNW with different polarization directions; the illustration shows the polarization directions.

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Table 1. Geometric Parameters of Trilobal and Cylindrical SiNWs

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Table 1. Geometric Parameters of Trilobal and Cylindrical SiNWs

Serial Number	Trilobal SiNW		Cylindrical SiNW
Serial Number	Width^a(nm)	Height (μm)	Diameter^a(nm)	Height (μm)	Cross Section^a( ${nm}^{2}$ )
1	10	0.3	62	0.3	3019
2	15	0.3	68	0.3	3631
3	20	0.3	74	0.3	4300
4	25	0.3	80	0.3	5026
5	15	0.1	68	0.1	3631
6	15	0.3	68	0.3	3631
7	15	0.5	68	0.5	3631
8	15	0.7	68	0.7	3631

Table 2. Total Light-Absorption Intensity and Obtainable $J_{SC}$ of Trilobal and Cylindrical SiNWs

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Table 2. Total Light-Absorption Intensity and Obtainable $J_{SC}$ of Trilobal and Cylindrical SiNWs

Serial Number	Trilobal SiNW		Cylindrical SiNW
Serial Number	Absorption Intensity^a( $W \cdot m^{- 2}$ )	Obtainable $J_{SC}$ ^a( $mA \cdot {cm}^{- 2}$ )	Absorption Intensity^a( $W \cdot m^{- 2}$ )	Obtainable $J_{SC}$ ^a( $mA \cdot {cm}^{- 2}$ )
1	7733	295	6152	252
2	7573	299	5945	242
3	7591	302	5402	219
4	6989	282	5207	210
5	2786	103	2475	96
6	7573	299	5944	242
7	11,846	476	8906	367
8	15,969	647	11,571	481

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Zhongliang Gao, Guilu Lin, Yupeng Zheng, Na Sang, Yingfeng Li, Lei Chen, Meicheng Li, "Excellent light-capture capability of trilobal SiNW for ultra-high J_SC in single-nanowire solar cells," Photonics Res. 8, 995 (2020)

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Paper Information

Category: Optical and Photonic Materials

Received: Dec. 13, 2019

Accepted: Mar. 9, 2020

Published Online: Jun. 1, 2020

The Author Email: Meicheng Li (mcli@ncepu.edu.cn)

DOI:10.1364/PRJ.385867

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Geometric Parameters of Trilobal and Cylindrical SiNWs

Table 1. Geometric Parameters of Trilobal and Cylindrical SiNWs

Table 2. Total Light-Absorption Intensity and Obtainable JSC of Trilobal and Cylindrical SiNWs

Table 2. Total Light-Absorption Intensity and Obtainable JSC of Trilobal and Cylindrical SiNWs

Table 2. Total Light-Absorption Intensity and Obtainable $J_{SC}$ of Trilobal and Cylindrical SiNWs

Table 2. Total Light-Absorption Intensity and Obtainable $J_{SC}$ of Trilobal and Cylindrical SiNWs