Table 2 Parameters of solar cell devices comprising CIS absorbers with various compositions subject to surface treatments.

From: Chemical instability at chalcogenide surfaces impacts chalcopyrite devices well beyond the surface

Sample

Efficiency (%)

VOC (mV)

JSC (mA cm−2)

FF (%)

PW71

12.8

446

42.0

68

PB

12.7

460.2

44.5

61.9

SW72

12.1

436.8

40.7

67.9

SB

11.7

434.5

38.5

69.7

RW60

–

–

–

–

RB60

7.0

355

42.1

46.8

RB + Se-only60

9.2

382

40.7

59.2

RB + Se KF PDT70

9.5

398

41.1

58.0

RB + Zn(O,S)60

6.7

399

41.0

40.9

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