Solar Cell Contacts Using Nano-Sized Dispersions

Doug Schulz; R. Ribelin; X. Wu; K. M. Jones; R. J. Matson; C. J. Curtis; T. Gessert; D. S. Ginley

Solar Cell Contacts Using Nano-Sized Dispersions

Doug Schulz, R. Ribelin, X. Wu, K. M. Jones, R. J. Matson, C. J. Curtis, T. Gessert, D. S. Ginley

Materials, Chemical, and Computational Science

National Renewable Energy Laboratory

Research output: Contribution to conference › Paper › peer-review

Abstract

Nano-sized dispersions have been employed as precursor inks for the spray deposition of contacts to both Si and CdTe materials. In the case of Si, nano-sized Al particles (nano-Al) were dispersed and spray deposited onto p-type Si. Annealing above the eutectic temperature causes alloy formation yielding a p+ layer with ρ approx. 10^-4 Ω·cm. For CdTe, nano-sized Te particles (nano-Te) were dispersed and sprayed onto CdTe/CdS/SnO₂glass heterostructures. Contact to the CdTe layer occurred during a 30 min anneal in He (T = 215 to 255°C). These solar cells were finished by spin-coating the Te layer with Ag paint and subsequently annealing in air (100°C / 1 h). This approach produces solar cells with open circuit voltages (V_oc) from 720 to 800 mV, short circuit current densities (J_sc) from 18 to 20 mA/cm² and efficiencies up to 10.3%. The performance of these cells was similar to those produced using the standard NREL contact.

Original language	American English
Pages	157-162
Number of pages	6
State	Published - 2000
Event	The 1999 MRS Fall Meeting - Symposium F 'Nanophase and Nanocomposite Materials III' - Boston, MA, USA Duration: 29 Nov 1999 → 2 Dec 1999

Conference

Conference	The 1999 MRS Fall Meeting - Symposium F 'Nanophase and Nanocomposite Materials III'
City	Boston, MA, USA
Period	29/11/99 → 2/12/99

NREL Publication Number

NREL/CP-520-28677

Cite this

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title = "Solar Cell Contacts Using Nano-Sized Dispersions",

abstract = "Nano-sized dispersions have been employed as precursor inks for the spray deposition of contacts to both Si and CdTe materials. In the case of Si, nano-sized Al particles (nano-Al) were dispersed and spray deposited onto p-type Si. Annealing above the eutectic temperature causes alloy formation yielding a p+ layer with ρ approx. 10-4 Ω·cm. For CdTe, nano-sized Te particles (nano-Te) were dispersed and sprayed onto CdTe/CdS/SnO2glass heterostructures. Contact to the CdTe layer occurred during a 30 min anneal in He (T = 215 to 255°C). These solar cells were finished by spin-coating the Te layer with Ag paint and subsequently annealing in air (100°C / 1 h). This approach produces solar cells with open circuit voltages (Voc) from 720 to 800 mV, short circuit current densities (Jsc) from 18 to 20 mA/cm2 and efficiencies up to 10.3%. The performance of these cells was similar to those produced using the standard NREL contact.",

author = "Doug Schulz and R. Ribelin and X. Wu and Jones, {K. M.} and Matson, {R. J.} and Curtis, {C. J.} and T. Gessert and Ginley, {D. S.}",

year = "2000",

language = "American English",

pages = "157--162",

note = "The 1999 MRS Fall Meeting - Symposium F 'Nanophase and Nanocomposite Materials III' ; Conference date: 29-11-1999 Through 02-12-1999",

}

TY - CONF

T1 - Solar Cell Contacts Using Nano-Sized Dispersions

AU - Schulz, Doug

AU - Ribelin, R.

AU - Wu, X.

AU - Jones, K. M.

AU - Matson, R. J.

AU - Curtis, C. J.

AU - Gessert, T.

AU - Ginley, D. S.

PY - 2000

Y1 - 2000

N2 - Nano-sized dispersions have been employed as precursor inks for the spray deposition of contacts to both Si and CdTe materials. In the case of Si, nano-sized Al particles (nano-Al) were dispersed and spray deposited onto p-type Si. Annealing above the eutectic temperature causes alloy formation yielding a p+ layer with ρ approx. 10-4 Ω·cm. For CdTe, nano-sized Te particles (nano-Te) were dispersed and sprayed onto CdTe/CdS/SnO2glass heterostructures. Contact to the CdTe layer occurred during a 30 min anneal in He (T = 215 to 255°C). These solar cells were finished by spin-coating the Te layer with Ag paint and subsequently annealing in air (100°C / 1 h). This approach produces solar cells with open circuit voltages (Voc) from 720 to 800 mV, short circuit current densities (Jsc) from 18 to 20 mA/cm2 and efficiencies up to 10.3%. The performance of these cells was similar to those produced using the standard NREL contact.

AB - Nano-sized dispersions have been employed as precursor inks for the spray deposition of contacts to both Si and CdTe materials. In the case of Si, nano-sized Al particles (nano-Al) were dispersed and spray deposited onto p-type Si. Annealing above the eutectic temperature causes alloy formation yielding a p+ layer with ρ approx. 10-4 Ω·cm. For CdTe, nano-sized Te particles (nano-Te) were dispersed and sprayed onto CdTe/CdS/SnO2glass heterostructures. Contact to the CdTe layer occurred during a 30 min anneal in He (T = 215 to 255°C). These solar cells were finished by spin-coating the Te layer with Ag paint and subsequently annealing in air (100°C / 1 h). This approach produces solar cells with open circuit voltages (Voc) from 720 to 800 mV, short circuit current densities (Jsc) from 18 to 20 mA/cm2 and efficiencies up to 10.3%. The performance of these cells was similar to those produced using the standard NREL contact.

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M3 - Paper

AN - SCOPUS:0033717988

SP - 157

EP - 162

T2 - The 1999 MRS Fall Meeting - Symposium F 'Nanophase and Nanocomposite Materials III'

Y2 - 29 November 1999 through 2 December 1999

ER -

Solar Cell Contacts Using Nano-Sized Dispersions

Abstract

Conference

NREL Publication Number

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