The influence of the laser parameter on the electrical shunt resistance of scribed Cu(InGa)Se2 solar cells by nested circular laser scribing technique

Wang, X.; Ehrhardt, Martin; Lorenz, Pierre; Scheit, C.; Ragnow, S.; Ni, Xiaowu; Zimmer, Klaus

doi:10.1016/j.apsusc.2013.10.155

Cited by 18 publications

(12 citation statements)

References 20 publications

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“…The evaluation of laser scribe conductivity with NCLST technique is not straight forward, and it depends on the sample properties. Zimmer et al performed many investigations on the in-process laser-induced shunt evaluation by applying very similar laser processing setup (Wang et al, 2013(Wang et al, , 2014Zimmer et al, 2014). The scribe resistance values were not comparable with the results of our NCLST measurements due to significant differences in samples electrical properties, although CIGS solar cell samples were from the same manufacturer.…”

Section: Discussioncontrasting

confidence: 64%

“…Then the results are fitted with the nested circular model fitting function. More details about the measurement technique can be found in (Wang et al, 2013(Wang et al, , 2014Zimmer et al, 2014).…”

Section: Nested Circular Scribing Technique (Nclst)mentioning

confidence: 99%

“…The first member of the function stands for areal parallel conductance of CIGS solar cell, second -laser induced parallel conductance and third member depicts the conductance of prior defects. Fitting function parameters are explained in Table 1, and more detailed information about the fitting model can be found in (Wang et al, 2013(Wang et al, , 2014Zimmer et al, 2014). In order to measure parallel conductance, the outermost circle is scribed first and afterward the conductance of the remaining structure is measured.…”

Section: Nested Circular Scribing Technique (Nclst)mentioning

confidence: 99%

“…In this paper, we provide the results of our investigation of two direct methods for cell parallel resistance measurement, including the linear laser scribing technique (LLST) reported in (Gecys et al, 2012;Zimmer et al, 2014) and the nested circular laser scribing technique (NCLST) (Wang et al, 2013(Wang et al, , 2014Zimmer et al, 2014). The LLST method provides a simple and less cell-area consuming measurement.…”

Section: Introductionmentioning

confidence: 98%

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Validation of monolithic interconnection conductivity in laser scribed CIGS thin-film solar cells

et al. 2015

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Section: Discussioncontrasting

confidence: 64%

Section: Nested Circular Scribing Technique (Nclst)mentioning

confidence: 99%

Section: Nested Circular Scribing Technique (Nclst)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Validation of monolithic interconnection conductivity in laser scribed CIGS thin-film solar cells

et al. 2015

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“…As an alternative approach, only the front electrode is ablated [9][10][11][12], and the absorber CIGS remains inside the P3 scribe. Here, the processing wavelength is typically within the absorption spectrum of CIGS and the transparency window of the front electrode.…”

Section: Introductionmentioning

confidence: 99%

CIGS P3 scribing using ultrashort laser pulses and thermal annealing

et al. 2015

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In general, laser structuring of CIGS solar modules causes material modifications in the vicinity of the processed area. The irradiated region often reveals high densities of defect states or melt that affect the electrical properties dramatically. In particular, this is a problem for laser P3 scribing where trenches should isolate the front from the back electrode. In this paper, we demonstrate optimized P3 scribes using ultrashort-pulse laser processing in combination with thermal annealing yielding permanently increased solar cell performance. We further investigate this behavior with the help of a two-diode equivalent circuit model. The simulations correlate very well to our obtained experimental results. We show that basically two main effects are responsible for the performance increase after thermal annealing. Firstly, the recombination current within the p–n junction decreases over orders of magnitudes, and secondly, the overall shunt resistance rises significantly

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Laser Processing in the Manufacture of Dye‐Sensitized and Perovskite Solar Cell Technologies

et al. 2015

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Dye‐sensitized and perovskite solar cells have seen tremendous efforts in their development in recent years. Amongst these developments are the design and implementation of fabrication techniques that can guarantee high performance as well as scalability over large areas. Laser processing has become a versatile and important tool in many industries and has also been applied successfully to both types of solar cell technologies, culminating in the demonstration of dye solar devices where all temperature treatments have been replaced with laser techniques, and of high‐performance solid‐state perovskite modules. Herein, we introduce concepts and review the available literature, pertaining to the effective utilization of laser beams for the development of both dye‐sensitized and perovskite photovoltaic technologies.

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The influence of the laser parameter on the electrical shunt resistance of scribed Cu(InGa)Se2 solar cells by nested circular laser scribing technique

Cited by 18 publications

References 20 publications

Validation of monolithic interconnection conductivity in laser scribed CIGS thin-film solar cells

Validation of monolithic interconnection conductivity in laser scribed CIGS thin-film solar cells

CIGS P3 scribing using ultrashort laser pulses and thermal annealing

Laser Processing in the Manufacture of Dye‐Sensitized and Perovskite Solar Cell Technologies

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