| Title |
Perovskite/CIGS tandem solar cells: from certified 24.2% toward 30% and beyond / |
| Authors |
Jošt, Marko ; Köhnen, Eike ; Al-Ashouri, Amran ; Bertram, Tobias ; Tomšič, Špela ; Magomedov, Artiom ; Kasparavicius, Ernestas ; Kodalle, Tim ; Lipovšek, Benjamin ; Getautis, Vytautas ; Schlatmann, Rutger ; Kaufmann, Christian A ; Albrecht, Steve ; Topič, Marko |
| DOI |
10.1021/acsenergylett.2c00274 |
| Full Text |
|
| Is Part of |
ACS energy letters.. Washington, DC : American chemical society. 2022, vol. 7, iss. 4, p. 1298-1307.. ISSN 2380-8195 |
| Keywords [eng] |
distillation ; perovskite solar cells ; CIGS |
| Abstract [eng] |
We demonstrate a monolithic perovskite/CIGS tandem solar cell with a certified power conversion efficiency (PCE) of 24.2%. The tandem solar cell still exhibits photocurrent mismatch between the subcells; thus optical simulations are used to determine the optimal device stack. Results reveal a high optical potential with the optimized device reaching a short-circuit current density of 19.9 mA cm-2 and 32% PCE based on semiempirical material properties. To evaluate its energy yield, we first determine the CIGS temperature coefficient, which is at -0.38% K-1 notably higher than the one from the perovskite subcell (-0.22% K-1), favoring perovskite in the field operation at elevated cell temperatures. Both single-junction cells, however, are significantly outperformed by the combined tandem device. The enhancement in energy output is more than 50% in the case of CIGS single-junction device. The results demonstrate the high potential of perovskite/CIGS tandem solar cells, for which we describe optical guidelines toward 30% PCE. |
| Published |
Washington, DC : American chemical society |
| Type |
Journal article |
| Language |
English |
| Publication date |
2022 |
| CC license |
|
