Co-diffused bi-facial PERT solar cells

Fellmeth, Tobias; Meier, Sebastian; Clement, Florian; Aßmus, W.; Knauss, H.; Havercamp, Helge

doi:10.1016/j.egypro.2017.09.247

Cited by 12 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Losses in FF are compensated by V oc gains due to the superior Al-Si kinetics under confined conditions. 16,17) The AgAl firing through approach reaches in a first promising result η front = 19.9% and a β η = 0.86. The high bifacility compared to bi-PERC is attributed to the superior conductivity of AgAl compared to Al pastes, thus enabling finer busbars and fingers.…”

Section: Bi-pert Devicementioning

confidence: 99%

Industry related approaches for bifacial p-type PERX solar cells

Fellmeth

Meier

Wöhrle

et al. 2018

Jpn. J. Appl. Phys.

Self Cite

View full text Add to dashboard Cite

The authors discuss industry related approaches at Fraunhofer ISE for bifacial p-type silicon solar cells, taking into account the well-known “passivated emitter and rear cell” (PERC), “passivated emitter and rear totally diffused” (PERT) and “passivated emitter and locally diffused” (PERL) architectures. In the case of PERC, challenges in terms of alignment, printability and the importance of bifaciality are addressed. In the case of PERT, a co-diffusion process is utilized to form the emitter and the back surface field simultaneously avoiding also critical shunts that can arise at the edges of such devices. For the PERL technology, the industrial feasible pPassDop approach is discussed. We report on front side energy conversion efficiencies for PERC of 21.4%, PERT of 20.5%, and PERL of 19.8%. Furthermore, bifaciality factors for PERC of 0.7, for PERT of 0.86, and for PERL of 0.89 are presented.

show abstract

Section: Bi-pert Devicementioning

confidence: 99%

Industry related approaches for bifacial p-type PERX solar cells

Fellmeth

Meier

Wöhrle

et al. 2018

Jpn. J. Appl. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Escola de Ciências, Pontifícia Universidade Catolica do Rio Grande do Sul -PUCRS, Av. Ipiranga, 6681, 90619-900, Porto Alegre, RS, Brasilemitter rear totally diffused (PERT) was produced with codiffusion of boron and phosphorus18 . The p + and n + layer were performed by atmospheric pressure chemical vapour deposition (APCVD) of boron (BSG) and phosphorous (PSG) silicate glass and co-diffusion in a quartz furnace.…”

mentioning

confidence: 99%

Influence of Diffusion Parameters on Electrical Characteristics of mc-Si Solar Cells with Aluminum and Phosphorus Diffusion Performed in the Same Thermal Step

2019

View full text Add to dashboard Cite

The diffusion of phosphorus and aluminum in a single-step thermal process may reduce the production cost of multicrystalline silicon (mc-Si) solar cells. The goal of this paper is to analyze the influence of phosphorus diffusion parameters on the electrical characteristics of p-type mc-Si solar cells processed with a single-step diffusion of phosphorus and aluminum. To avoid the wafer bowing during aluminum paste firing, the aluminum was deposited by e-beam and co-diffused in the same thermal step that the phosphorus diffusion. First, the aluminum diffusion was performed and, then, the POCl 3 was introduced into the quartz tube. The steps of the phosphorus diffusion were experimentally optimized. The best result was found with the temperature of 875 ºC. The POCl 3 concentration of 0.15% and the optimized phosphorus diffusion parameters lead to the efficiency of 14.1%. The reduction of the oxygen flow during ramp temperature and aluminum diffusion improved the efficiency.

show abstract

Crystalline Silicon Solar Cells – State-of-the-Art and Future Developments

Glunz¹,

Preu²

2022

Comprehensive Renewable Energy

View full text Add to dashboard Cite

Co-diffused bi-facial PERT solar cells

Cited by 12 publications

References 10 publications

Industry related approaches for bifacial p-type PERX solar cells

Industry related approaches for bifacial p-type PERX solar cells

Influence of Diffusion Parameters on Electrical Characteristics of mc-Si Solar Cells with Aluminum and Phosphorus Diffusion Performed in the Same Thermal Step

Crystalline Silicon Solar Cells – State-of-the-Art and Future Developments

Contact Info

Product

Resources

About