Silicon PV devices based on a single step for doping, anti-reflection and surface passivation

Iyengar, Vikram V.; Nayak, Barada K.; Gupta, Mool C.

doi:10.1016/j.solmat.2010.07.013

Cited by 22 publications

(19 citation statements)

References 15 publications

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“…Solar cells on electric-arc micro-textured surfaces are fabricated using a standard procedure with a phosphorus emitter and a full area Al back surface field described in [8]. The steps include 1) Spin-on doping for formation of n-type emitter 2) Surface passivation with thermal oxide and plasma enhanced chemical vapor deposition (PECVD) of silicon nitride deposited at a temperature of 350 °C 3) Formation of back surface field and back contact with Ferro 53-038 aluminum paste 4) Photolithography for front contact patterning 5) E-beam evaporation of Ti/Pd/Ag.…”

Section: Lifetime Measurement and Solar Cell Fabricationmentioning

confidence: 99%

Electric-arc micro-texturing of silicon surfaces for photovoltaic applications

Wang

Iyengar

Gupta

2012

2012 38th IEEE Photovoltaic Specialists Conference

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We demonstrate a novel cost-effective surface micro-texturing method using an electric-arc in argon at atmosphere pressure to enhance light trapping in silicon solar cells. The experimental set-up for electric-arc micro-texturing is described. The morphological, optical and electronic properties of micro-textured silicon surfaces have been investigated. The electronic quality of micro-textured surfaces is studied by measuring the surface minority carrier lifetime (τ s ) to reveal the presence of surface damage, which can be removed by a short chemical etching step. The quality of the electric-arc microtextured silicon material is recovered as indicated by τ s . Silicon solar cells are fabricated on such electric-arc micro-textured and chemically etched surfaces. Initial conversion efficiency of 14.4% is achieved which can be further improved. The effective minority carrier lifetime (τ) of the solar cells is examined by observing the open circuit voltage decay, which shows no degradation of τ when compared to chemically micro-textured control samples.

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Section: Lifetime Measurement and Solar Cell Fabricationmentioning

confidence: 99%

Electric-arc micro-texturing of silicon surfaces for photovoltaic applications

Wang

Iyengar

Gupta

2012

2012 38th IEEE Photovoltaic Specialists Conference

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“…El-Shobokshy and Hussein [14] studied the effects of the size and density of dust particles on PV performance, and they found that fine dust had a greater effect on PV module performance than coarse dust. Moreover, Goossens and Kerschaever [15] performed [15][16] . By increases the the performance [16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, Goossens and Kerschaever [15] performed [15][16] . By increases the the performance [16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

Analyzing the impact of dust accumulation and different cleaning mechanism on efficiency of solar photovoltaic panel

Kumar¹,

Manish

2018

TSE

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Electricity generation around the world is mainly produced by using non-renewable energy sources especially in the commercial buildings. However, Rooftop solar Photovoltaic (PV) system produced a significant impact on environmental and economical benefits in comparison to the conventional energy sources, thus contributing to sustainable development. Such PV’s system encourages the production of electricity without greenhouse gas emissions that leads to a clean alternative to fossil fuels and economic prosperity even in less developed areas. However, efficiency of rooftop solar PV systems depends on many factors, the dominant being geographical (latitude, longitude, and solar intensity), environmental (temperature, wind, humidity, pollution, dust, rain, etc.) and the type of PV (from raw material extraction and procurement, to manufacturing, disposal, and/or recycling) used. During the feasibility analysis of the environment, geographical conditions are keep in well consideration, but the pollution level of the city is always overlooked, which significantly influences the performance of the PV installations. Therefore, this research work focused on the performance of rooftop solar PV installed in one of the most polluted city in India. Here, the loss in power generation of rooftop solar PV has been studied for the effect of deposited dust particles, wind velocity before and after the cleaning of the panels. The actual data has been utilized for the calculation of the energy efficiency and power output of the PV systems. According to the results, it has been concluded that dust deposition, wind speed and pollution level in city significantly reduces the efficiency of solar photovoltaic panel. Hence, an overview of social and environmental impacts of PV technologies is presented in this paper along with potential benefits and pitfalls.

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“…Texturing of the front surface was carried out using TMAH solutions at 80 C for 30 minutes [33]. Solar cell processing before laser transferring metallization followed the lab procedures outlined in reference [34]. The After coating with this paste, the wafer was first soft baked at 200 °C and then inserted into a tube furnace at 800 °C for 5 minutes.…”

Section: Methodsmentioning

confidence: 99%

“…The other drawbacks include high infrastructure cost of the diffusion furnace system which also requires significant maintenance. Besides gas phase doping, the liquid phase doping in the form of spin-on glass has also been extensively studied [13,14].…”

Section: Metallization and Doping Techniquesmentioning

confidence: 99%

Laser Transfer of Metal Contacts and Dopants for Silicon Solar Cells

Wang¹

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CHAPTER 2: LASER TRANSFER OF METAL CONTACTS……………………...7 2.1 Introduction……………………………………………………………………………7 2.2 Experimental…………………………………………………………………………..9 2.3 Results and Discussion………………………………………………………………12 2.3.1 Single laser pulse study and surface morphology………………….………12 2.3.2 Contact resistivity of front and rear laser-transferred metal contacts…..….15 2.3.3 Solar cell performance with all-laser-transferred contacts……….

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Silicon PV devices based on a single step for doping, anti-reflection and surface passivation

Cited by 22 publications

References 15 publications

Electric-arc micro-texturing of silicon surfaces for photovoltaic applications

Electric-arc micro-texturing of silicon surfaces for photovoltaic applications

Analyzing the impact of dust accumulation and different cleaning mechanism on efficiency of solar photovoltaic panel

Laser Transfer of Metal Contacts and Dopants for Silicon Solar Cells

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