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 2

PV parameters of devices with KCN and NH₄OH surface treatment, see Figure 2b. Percentages correspond to the Mg content of the buffer layer.

	V _OC (mV)	J _SC (mA/cm²)	FF (%)	η (%)
14%	545	35.6	57	11.0
16%	624	35.5	67	14.7
18%	623	34.8	55	12.0
20%	547	30.2	17	3.0

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