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Application of poly-Si on oxide junctions as one or both polarities of high-efficiency IBC solar cells

Hollemann, Christina (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)

This work deals with the application of passivating contacts, specifically POLO contacts, which can increase the selectivity of the charge carriers at the metal contact and thus the efficiency due to their excellent ...
Assessing the stability of p+ and n+ polysilicon passivating contacts with various capping layers on p-type wafers

Madumelu, Chukwuka; Cai, Yalun; Hollemann, Christina; Peibst, Robby; Hoex, Bram; Hallam, Brett J.; Soeriyadi, Anastasia H. (Amsterdam [u.a.] : NH, Elsevier, 2023)

Polysilicon (poly-Si)-on-oxide passivating contact structures (POLO/TOPCon) enable high-efficiency solar cells as they simultaneously provide a very high level of surface passivation and a high conductance for either ...
Contacting a single nanometer-sized pinhole in the interfacial oxide of a poly-silicon on oxide (POLO) solar cell junction

Bayerl, Paul; Folchert, Nils; Bayer, Johannes; Dzinnik, Marvin; Hollemann, Christina; Brendel, Rolf; Peibst, Robby; Haug, Rolf J. (Chichester : Wiley, 2021)

The electrical current through poly-Si on oxide (POLO) solar cells is mediated by tunneling and by nanometer-sized pinholes in the interfacial oxide. To distinguish the two processes, a POLO junction with a measured pinhole ...
Firing stability of tube furnace-annealed n-type poly-Si on oxide junctions

Hollemann, Christina; Rienäcker, Michael; Soeriyadi, Anastasia; Madumelu, Chukwuka; Haase, Felix; Krügener, Jan; Hallam, Brett; Brendel, Rolf; Peibst, Robby (Chichester : Wiley, 2022)

Stability of the passivation quality of poly-Si on oxide junctions against the conventional mainstream high-temperature screen-print firing processes is highly desirable and also expected since the poly-Si on oxide preparation ...
For none, one, or two polarities—How do POLO junctions fit best into industrial Si solar cells?

Peibst, Robby; Kruse, Christian; Schäfer, Sören; Mertens, Verena; Bordihn, Stefan; Dullweber, Thorsten; Haase, Felix; Hollemann, Christina; Lim, Bianca; Min, Byungsul; Niepelt, Raphael; Schulte‐Huxel, Henning; Brendel, Rolf (Chichester : Wiley, 2019-11-05)

We present a systematic study on the benefit of the implementation of poly-Si on oxide (POLO) or related junctions into p-type industrial Si solar cells as compared with the benchmark of Passivated Emitter and Rear Cell ...
On the chances and challenges of combining electron-collecting nPOLO and hole-collecting Al-p+ contacts in highly efficient p-type c-Si solar cells

Peibst, Robby; Haase, Felix; Min, Byungsul; Hollemann, Christina; Brendemühl, Till; Bothe, Karsten; Brendel, Rolf (Chichester : Wiley, 2022)

ISFH is following a distinct cell development roadmap, which comprises—as a short-term concept—the combination of an n-type doped electron-collecting poly-Si on oxide (POLO) junction with an Al-alloyed p+ junction for hole ...

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