Abstract

Monocrystalline silicon-based, n-type front and back contact (nFAB) solar cells are gradually attracting more interest from the photovoltaic industry, due to their good bifaciality and high efficiency potentials. To further improve the conversion efficiency, nFAB solar cells need to make better use of the solar spectrum. Conventional single-layer SiNx antireflection coating (ARC) tends to have a high reflection loss for ultraviolet photons. Thus, in this work, we prepare a double-layer ARC structure made of SiNx/SiOx stack, deposited by the plasma-enhanced chemical vapor deposition method. We investigate the effects of double-layer ARC through simulation and experimental studies by fabricating bifacial nFAB cells. The results show that the implementation of a double-layer ARC helps to greatly reduce front reflection in short wavelength, and thus allow for improvement of the photocurrent by up to 0.3mA/cm2. As a result, the average cell efficiency of nFAB solar cells increases by absolute 0.2%.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Light trapping in ultrathin 25  μm exfoliated Si solar cells

Mohamed M. Hilali, Sayan Saha, Emmanuel Onyegam, Rajesh Rao, Leo Mathew, and Sanjay K. Banerjee
Appl. Opt. 53(27) 6140-6147 (2014)

Coupled modelling approach for optimization of bifacial silicon heterojunction solar cells with multi-scale interface textures

Ziga Lokar, Benjamin Lipovsek, Arsalan Razzaq, Valerie Depauw, Ivan Gordon, Jef Poortmans, Janez Krc, and Marko Topic
Opt. Express 27(20) A1554-A1568 (2019)

Lithography-free sub-100 nm nanocone array antireflection layer for low-cost silicon solar cell

Zhida Xu, Jing Jiang, and Gang Logan Liu
Appl. Opt. 51(19) 4430-4435 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription