Monolithic Perovskite-Carrier Selective Contact Silicon Tandem Solar Cells Using Molybdenum Oxide as a Hole Selective Layer

Autor: Hoyoung Song, Sang Won Lee, Soohyun Bae, Chang Hyun Lee, Hae-Seok Lee, Seok Hyun Jeong, Hyunju Lee, Dowon Pyun, Jiyeon Nam, Donghwan Kim, Ji Yeon Hyun, Dongjin Choi, Yoonmook Kang, Jiryang Kim
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Energies; Volume 14; Issue 11; Pages: 3108
Energies, Vol 14, Iss 3108, p 3108 (2021)
ISSN: 1996-1073
DOI: 10.3390/en14113108
Popis: Monolithic perovskite–silicon tandem solar cells with MoOx hole selective contact silicon bottom solar cells show a power conversion efficiency of 8%. A thin 15 nm-thick MoOx contact to n-type Si was used instead of a standard p+ emitter to collect holes and the SiOx/n+ poly-Si structure was deposited on the other side of the device for direct tunneling of electrons and this silicon bottom cell structure shows ~15% of power conversion efficiency. With this bottom carrier selective silicon cell, tin oxide, and subsequent perovskite structure were deposited to fabricate monolithic tandem solar cells. Monolithic tandem structure without ITO interlayer was also compared to confirm the role of MoOx in tandem cells and this tandem structure shows the power conversion efficiency of 3.3%. This research has confirmed that the MoOx layer simultaneously acts as a passivation layer and a hole collecting layer in this tandem structure.
Databáze: OpenAIRE
Nepřihlášeným uživatelům se plný text nezobrazuje