User profiles for Emre Yengel

Emre Yengel

Aixtron SE
Verified email at aixtron.com
Cited by 5657

17% Efficient Organic Solar Cells Based on Liquid Exfoliated WS2 as a Replacement for PEDOT:PSS

Y Lin, B Adilbekova, Y Firdaus, E Yengel… - Advanced …, 2019 - Wiley Online Library
The application of liquid‐exfoliated 2D transition metal disulfides (TMDs) as the hole
transport layers (HTLs) in nonfullerene‐based organic solar cells is reported. It is shown that …

The energy level conundrum of organic semiconductors in solar cells

…, J Han, CSP De Castro, E Yengel… - Advanced …, 2022 - Wiley Online Library
The frontier molecular energy levels of organic semiconductors are decisive for their fundamental
function and efficiency in optoelectronics. However, the precise determination of these …

Self-assembled monolayer enables hole transport layer-free organic solar cells with 18% efficiency and improved operational stability

…, Y Firdaus, FH Isikgor, MI Nugraha, E Yengel… - ACS Energy …, 2020 - ACS Publications
We report on bulk-heterojunction (BHJ) organic photovoltaics (OPVs) based on the self-assembled
monolayer (SAM) 2PACz as a hole-selective interlayer functionalized directly onto …

Zero-Dimensional Cs4PbBr6 Perovskite Nanocrystals

…, H Yang, B Murali, E Alarousu, E Yengel… - The journal of …, 2017 - ACS Publications
Perovskite nanocrystals (NCs) have become leading candidates for solution-processed
optoelectronics applications. While substantial work has been published on 3-D perovskite …

A simple n-dopant derived from diquat boosts the efficiency of organic solar cells to 18.3%

…, F Aniés, AH Emwas, E Yengel… - ACS Energy …, 2020 - ACS Publications
Molecular doping has recently been shown to improve the operating characteristics of
organic photovoltaics (OPVs). Here, we prepare neutral Diquat (DQ) and use it as n-dopant to …

18.4% organic solar cells using a high ionization energy self‐assembled monolayer as hole‐extraction interlayer

…, H Faber, DR Naphade, E Yengel… - …, 2021 - Wiley Online Library
Self‐assembled monolayers (SAMs) based on Br‐2PACz ([2‐(3,6‐dibromo‐9H‐carbazol‐9‐yl)ethyl]phosphonic
acid) 2PACz ([2‐(9H‐Carbazol‐9‐yl)ethyl]phosphonic acid) and MeO‐…

28.2%-efficient, outdoor-stable perovskite/silicon tandem solar cell

…, M De Bastiani, FH Isikgor, AU Rehman, E Yengel… - Joule, 2021 - cell.com
Stacking perovskite solar cells onto crystalline silicon bottom cells in a monolithic tandem
configuration enables power-conversion efficiencies (PCEs) well above those of their single-…

Concurrent cationic and anionic perovskite defect passivation enables 27.4% perovskite/silicon tandems with suppression of halide segregation

…, J Liu, E Ugur, MK Eswaran, AS Subbiah, E Yengel… - Joule, 2021 - cell.com
Stable and efficient perovskite/silicon tandem solar cells require defect passivation and
suppression of light-induced phase segregation of the wide-band-gap perovskite. Here, we …

Inside Perovskites: Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals

…, BA Alshankiti, XH Miao, J Yin, E Yengel… - Chemistry of …, 2017 - ACS Publications
Zero-dimensional perovskite-related structures (0D-PRS) are a new frontier of perovskite-based
materials. 0D-PRS, commonly synthesized in powder form, manifest distinctive optical …

17.1% efficient single‐junction organic solar cells enabled by n‐type doping of the bulk‐heterojunction

…, M Neophytou, H Faber, E Yengel… - Advanced …, 2020 - Wiley Online Library
Molecular doping is often used in organic semiconductors to tune their (opto)electronic
properties. Despite its versatility, however, its application in organic photovoltaics (OPVs) …