09 March, 2020
Mechanically stacked tandems still hold great potential. Check out our collaborative study with @Sargent_Group reporting lab-scale 28.2% perovskite/silicon tandems with 19% semitransparent top cells published in Nature Communications.
05 March, 2020
Our team in a collaboration with Sargent Group grew thick films of perovskite with a bandgap of ∼1.68 electron volts and used a passivant, 1-butanethiol, to limit its phase separation. The tandem cells had a certified power conversion efficiency of 25.7% and had negligible losses after 400 hours of operation.
20 February, 2020
KPV-LAB people met at lunch to say goodbye to Alessandro and welcome Francesco Furlan.
23 January, 2020
KPV-LAB offers students the chance to conduct innovative research at KAUST. With research opportunities that span the breadth of the photovoltaics field, driven students with an insatiable curiosity and strong academic performance can gain unparalleled opportunities to pursue their research questions under the guidance and support of KPV-LAB members.
16 December, 2019
KPV-LAB people gathered for new year lunch. Happy new year to everyone!
20 November, 2019
The Red Sea is, in particular, one of the best snorkeling destinations in the world. KPV-LAB members are enjoying the beauties of the Red Sea.
19 November, 2019
Prof. Stefaan De Wolf is included in Web of Science’s Highly Cited Researchers 2019 annual list for the first time.
22 October, 2019
A touch of zirconium to better catch the sun: Zirconium-doped transparent electrodes boost the power conversion efficiency of perovskite-based tandem solar cells.
17 October, 2019
At KPV-LAB Simone will focus on the optimization of spray coating deposition for perovskite-silicon tandem applications
16 September, 2019
Recent breakthroughs in the way silicon solar cells can be made suggest the face of the industry-dominating technology could be changing. The new discoveries are outlined in a paper.
05 September, 2019
Dr. Erkan Aydin's technology review on "Defect and Contact Passivation for Perovskite Solar Cells" takes places in the last issue of KSC Newsletter
01 September, 2019
KPV-LAB members gathered at a dinner to say goodbye to interns and visitors. Francesco Furlan who is a VSRP intern, Jorge Avila Gomez who is a visiting scientist from the University of Valencia, and Salman Aboud and Rawan Jalmood are finalizing their visits.
In the meantime, we say welcome to our new VSRP interns Alessandro Mirabelli and Shingis Zhumagali.
27 August, 2019
Changes in the composition are shown to affect light-harvesting layer crystallization and perovskite solar cell efficiency.
18 July, 2019
KPV-LAB hosts two summer school students for silicon solar activities: Salman and Rawan.
17 June, 2019
The role of cation and halide mixing is revealed using in situ X‐ray scattering measurements during spin‐coating. Modulating the cation/halide composition directly impacts the lifetime of the sol–gel precursor film and its easy and reproducible conversion to the perovskite phase to yield solar cells with 20% power conversion efficiency.
16 June, 2019
Jorge Avila from Prof. Henk Bolink's Group joins KPV-LAB as a visiting researcher. Welcome Jorge!
11 June, 2019
07 June, 2019
This paper envision a future with ∼10 TW of PV by 2030 and 30 to 70 TW by 2050, providing a majority of global energy. PV would be not just a key contributor to electricity generation but also a central contributor to all segments of the global energy system. Ramifications and challenges for complementary technologies (e.g., energy storage, power to gas/liquid fuels/chemicals, grid integration, and multiple sector electrification) are discussed.
26 May, 2019
Anand has recently moved to KAUST from India, joining Prof. Stefaan De Wolf’s group at KAUST Solar Center as a postdoctoral fellow.
10 May, 2019
The small organic molecule (2‐(1,10‐phenanthrolin‐3‐yl)naphth‐6‐yl)diphenylphosphine oxide is explored as cathode interfacial material to reduce the extraction barrier between phenyl‐C61‐butyric acid methyl ester and Ag. With the better contact quality thanks to this molecule, both opaque and semitransparent p‐i‐n perovskite solar cell achieve improved performance and stability.
08 May, 2019
Dr. Erkan Aydin, Dr. Michele De Bastiani and Prof. Stefaan De Wolf reviewed "Defect and Contact Passivation for Perovskite Solar Cells" in Advanced Materials. This comprehensive review explains the origin of the various voltage‐limiting mechanisms in PSCs, and possible mitigation strategies with decent examples from literature.
17 April, 2019
Jingxuan Kang succesfully defended his M.Sc. thesis. Cogratulations!
16 April, 2019
In this study, Xinbo Yang coworkers report an electron-conductive, hole-blocking contact based on titanium nitride (TiN) deposited by reactive magnetron sputtering.
10 April, 2019
In this study, Dr. Erkan Aydin and coworkers show the excellent properties of Zr‐doped indium oxide (IZRO) transparent electrodes for such applications, with improved near‐infrared (NIR) response, compared to conventional tin‐doped indium oxide (ITO) electrodes, are shown. By doing so, the team is reporting 26.2% PCE for four‐terminal perovskite/silicon tandem devices with an absolute 3.5 mA cm−2 short‐circuit current improvement in silicon bottom cells.
31 March, 2019
Francesco Furlan joins to KPV-LAB perovskite solar cells team as a VSRP student
09 March, 2019
This study reveals the temperature dependence of absorption spectra for methylammonium lead iodide with specific attention for its sub-bandgap
absorption edge (often referred to as Urbach energy).
08 March, 2019
KPV-LAB researchers have recently published in ACS Nano with a collaboration of Javey Research Group at the University of California, Berkeley.
19 February, 2019
This study reports the first-principles calculations based on density functional theory to investigate the surface defect and metal-induced gap state density of silicon in close contact with metals (Al and Ag).
10 February, 2019
KPV-LAB welcomes Yifan Dang as a visiting student in silicon solar cells team.
24 November, 2018
Learn about the latest research results from KPV-LAB at the 2018 MRS Fall Meeting
16 November, 2018
Charge accumulation at the electron and hole transport layers generates anomalous electrical behavior in perovskite solar cells (PSCs). Hysteresis in the current-voltage characteristic and recombination at the interfaces are the clearest manifestations of this phenomenon, which compromises device performance and stability. In this study, we explained the underlying charge‐carrier dynamics of a hysteresis observed and hysteresis-free PSCs by analyzing their transient photocurrent response.
07 November, 2018
The Eni Award aims to reflect the importance of scientific research and innovation, promoting a better use of energy sources and encouraging a new generation of researchers. The award is an international point of reference for research in the energy and environment sectors.
30 October, 2018
Furkan recently joined Prof. Stefaan de Wolf’s group as a postdoctoral fellow.
24 October, 2018
KPV-LAB introduces new Visiting Students Research Program (VSRP) projects.
22 October, 2018
Jiang's current research interests include the development of high-efficiency perovskite/silicon tandem solar cells, perovskite solar cells based on novel materials including evaporation processing, interface passivation, and advanced characterization.
19 October, 2018
KPV-LAB researchers developed a room temperature sputtered Nickel oxide (NiOx) hole transport thin films which can be used for perovskite solar cells, perovskite/silicon tandem solar cells, organic solar cells which employs low-temperature resilience substrates.
08 October, 2018
The efficiency of solar cells can be increased by thin-film contacts developed by researchers at KAUST.
01 October, 2018
KPV-LAB members are joining PSCO-2018 Conference at Lausanne
16 September, 2018
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.
09 September, 2018
KPV-LAB researchers fabricated the first silicon heterojunction solar cells at KAUST Solar Center with impressive start of >20%.
31 July, 2018
High-efficiency silicon heterojunction (SHJ) solar cells (Fig. 1), which use a crystalline silicon (c-Si) wafer as an optical absorber and thin-film layers to form their electrical contacts, have the potential to gain a substantial share in the commercial photovoltaic (PV) market in the future. Currently, the world-record efficiency of 26.7 % is achieved with SHJ technology by placing both contacts in an interdigitated back-contact design. The KAUST Photovoltaics (KPV) Lab, led by Prof. Stefaan De Wolf, which is part of the KAUST Solar Center (KSC), is dedicated to the development of high-efficiency silicon-based solar cells, using SHJ solar cells as a core technology, and to tailoring such solar cells specifically for use in hot and sunny climates.
31 July, 2018
Thomas Allen reviewed passivating contacts which is enabling progress towards the efficiency limits of the silicon solar cells.
23 July, 2018
Indeotec Octopus PECVD-PVD Cluster enables the fabrication of silicon heterojunction cells on the 6-inch wafers.
19 April, 2018
Tantalum Nitride has been used for the first time as a passivating contact on silicon solar cells.
16 January, 2018
KAUST Solar Center has a New Milestone: KPV-LAB researchers have recently achieved >20% efficiency for perovskite solar cells
30 May, 2017
Xinbo Yang's paper selected as a front cover in journal of "Progress in Photovoltaics: Research and Applications"