NDLI: Investigation on silver nanoparticles-based plasmonic antireflection and its impact on electrical performance of mono c-Si solar cells

Content Provider	IEEE Xplore Digital Library
Author	Singh, H.K. Sandeep, K. Chary, M. Balraj, A. Sharma, P. Solanki, C.S.
Copyright Year	2014
Description	Author affiliation: Dept. of Energy Sci. & Eng., IIT Bombay, Mumbai, India (Singh, H.K.; Sandeep, K.; Chary, M.; Balraj, A.; Sharma, P.; Solanki, C.S.)
Abstract	Silver nanoparticles (NP's) were fabricated from silver ultrathin film deposited by e-beam evaporation using an optimized process, followed by rapid thermal annealing (RTP) done at $400^{0}C$ for 1 minute on mono c-Si solar cells. The optical reflection and the electrical performance of the solar cells with and without silver nanoparticles were studied and analyzed. Incorporating Ag NP's improves the antireflection in IR wavelength range (700 nm-1200 nm) which is reflected as 7-8 % improvement in external quantum efficiency (EQE) in this range with weighted total reflectance (TWR) of 7 %. However, the high backscattering from NP's which results in high reflection in UV-Visible range, reduces the EQE in this wavelength range. The short circuit current density (extracted from EQE) is reduced from 35.5 $mA/cm^{2}$ to 31.4 $mA/cm^{2}$ though the Sun's $V_{oc}$ measurement suggests that there is relatively no impact on open circuit voltage and pseudo FF due to $SiN_{x}$ + NP's-based antireflection. This investigation suggests that the NP's combined with $SiN_{x}$ ARC is good for solar cell performance improvement in the IR range but not for broad wavelength range (300 nm-1200 nm) which is important for c-Si solar cells. Thus, the use of nanoparticles on the front surface of the solar cells cannot be utilized efficiently; however its back scattering property may be utilized using NP's at the back surface of the mono c-Si-based solar cell.
Starting Page	1
Ending Page	4
File Size	2381847
Page Count	4
File Format	PDF
ISBN	9781467365277
e-ISBN	9781467365284
DOI	10.1109/ICEmElec.2014.7151167
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-12-03
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelength measurement MONOS devices Nanoparticles Mono c-Si solar cells Silver Photovoltaic cells Silver NP's EQE Plasmons Sun's Voc Plasmonics Anti reflection coating Optical surface waves
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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