2018

A Universal Double-Side Passivation for High Open-Circuit Voltage in Perovskite Solar Cells: Role of Carbonyl Groups in Poly(methyl methacrylate)

Year: 2018 DOI:https://doi.org/10.1002/aenm.201801208

Authors: Jun Peng, Jafar I.Khan, Wenzhu Liu, Esma Uğur, The Duong, Yiliang Wu, Heping Shen, Kai Wang, Hoang Dang, Erkan Aydin, Xinbo Yang, Yimao Wan, Klaus Weber, Kylie R. Catchpole, Frédéric Laquai, Stefaan De Wolf, Thomas P.White

Thanks to PMMA: PCBM Double-side passivation, very high‐efficiency (≈20.8%) perovskite cells with some of the highest open circuit voltages (1.22 V) reported for the same 1.6 eV bandgap are demonstrated.

carbonyl group
nonradiative recombination
passivation
perovskite solar cells
undercoordinated Pb atoms

Tantalum Nitride Electron Selective Contact for Crystalline Silicon Solar Cells

Article Year: 2018 DOI:https://doi.org/10.1002/aenm.201800608

Authors: Xinbo Yang, Erkan Aydin, Hang Xu, Jingxuan Kang, Mohamed Hedhili, Wenzhu Liu, Yimao Wan, Jun Peng, Christian Samundsett, Andres Cuevas, Stefaan De Wolf

With this study, for the first time in literature Tantalum Nitride has been used as passivating contact on silicon solar cells.

hole blocking
Passivating contact
silicon solar cell
tantalum nitride