ALD-ZnMgO and absorber surface modifications to substitute CdS buffer layers in co-evaporated CIGSe solar cells

Ramis Hertwig; Shiro Nishiwaki; Mario Ochoa; Shih-Chi Yang; Thomas Feurer; Evgeniia Gilshtein; Ayodhya N. Tiwari; Romain Carron

doi:10.1051/epjpv/2020010

All issues

Volume 11 (2020)

EPJ Photovolt., 11 (2020) 12

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Chalcogenide Materials for Photovoltaics 2020

Open Access

Table 4

PV parameters of best devices with single TMA pulse during buffer deposition. “B” refers to a single cycle of TMA before buffer deposition, “M” refers to a single TMA pulse midway during buffer deposition.

	V _OC (mV)	J _SC (mA/cm²)	FF (%)	η (%)
B	663	35.9	69	16.5
B (+90 days)	677	35.8	62	15.0
M	594	35.0	58	12.2
M (+90 days)	668	34.5	42	9.6

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