Infrared and Laser Engineering, Volume. 51, Issue 2, 20220022(2022)
Light beam induced current mapping to characterize damage characteristics of silicon solar cell irradiated by continuous-wave laser
Figures & Tables(14)
Fig. 1. Diagram of the light path in experiment of laser irradiation of solar cell
Fig. 3. Surface images of solar cells after laser irradiation with different power densities
Fig. 4. Voltage-current characteristic curves of solar cells in dark environment after laser irradiation with different power densities
Fig. 7. Surface images of solar cells after laser irradiation on fingers. Two (a), three (b), and five (c) adjacent fingers
Fig. 8. Voltage-current characteristic curves of solar cell in dark environment after laser irradiation on fingers
Fig. 9. 650 nm LBIC maps of solar cell after laser irradiation on fingers. Two (a), three (b), and five (c) adjacent fingers
Table 1. Series resistance and shunt resistance of solar cells after laser irradiation with different power densities
View tableView in ArticleTable 1. Series resistance and shunt resistance of solar cells after laser irradiation with different power densities
Power density/W·cm−2 Series resistance/Ω Series resistance drop percentage Shunt resistance/Ω Shunt resistance drop percentage Before irradiation 1.35 - 6543.74 - 483.2 0.13 90.4% 5060.01 22.7% 563.7 0.17 87.4% 1747.88 73.3% 644.2 0.32 76.3% 170.33 97.4% 724.8 0.14 89.6% 643.06 90.2% 805.3 0.11 91.9% 141.10 97.8%
Table 2. Percentage of solar cell current drop after laser irradiation with different power densities (650 nm)
View tableView in ArticleTable 2. Percentage of solar cell current drop after laser irradiation with different power densities (650 nm)
Power density/W·cm-2 Minimum current in damaged area/μA Current away from the damaged area/μA Drop percentage 483.2 54.88 77.34 29.0% 563.7 15.05 75.97 80.2% 644.2 14.14 76.05 81.4% 724.8 15.92 78.42 79.7% 805.3 14.82 75.75 80.4%
Table 3. Damaged area of solar cells after laser irradiation with different power densities(980 nm)
View tableView in ArticleTable 3. Damaged area of solar cells after laser irradiation with different power densities(980 nm)
Power density/W·cm-2 Damage area/mm2 Percentage of damaged area in spot area 483.2 0.57 18.2% 563.7 2.74 87.2% 644.2 2.32 73.7% 724.8 3.39 107.8% 805.3 5.08 161.9%
Table 4. Series resistance and shunt resistance of solar cells after laser irradiation on fingers
View tableView in ArticleTable 4. Series resistance and shunt resistance of solar cells after laser irradiation on fingers
Irradiation position Series resistance/Ω Series resistance drop percentage Shunt resistance/Ω Shunt resistance drop percentage Before 0.40 - 299.82 - Two adjacent fingers 0.17 57.5% 94.66 68.4% Three adjacent fingers 0.08 80.0% 76.35 74.5% Five adjacent fingers 0.07 82.5% 53.18 82.3%
Table 5. Percentage of solar cell current drop after laser irradiation on fingers (650 nm)
View tableView in ArticleTable 5. Percentage of solar cell current drop after laser irradiation on fingers (650 nm)
Irradiation position Current on the side away from the electrode lead/μA Current on the side close to the electrode lead/μA Drop percentage Two adjacent fingers 207.77 243.92 14.8% Three adjacent fingers 198.97 232.73 14.5% Five adjacent fingers 40.57 243.96 83.4%
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Jian Lu, Zhijian Xie, Hongchao Zhang. Light beam induced current mapping to characterize damage characteristics of silicon solar cell irradiated by continuous-wave laser[J]. Infrared and Laser Engineering, 2022, 51(2): 20220022
Paper Information
Category: Special issue-Laser technology and its application
Received: Jan. 6, 2022
Accepted: --
Published Online: Mar. 21, 2022
The Author Email: Xie Zhijian (xiezhijian@njust.edu.cn)
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