Day 1 - 26th November

9:00 - 9:10 Welcome to the 11th European Kesterite+ Workshop

9:10 - 11:10 1st session, Material / device characterization, chaired by Charlotte Platzer-Björkmann and Levent Gütay

9:10 Temujin Enkhbat (Incheon Korea) - Towards High Efficient Kesterite Solar Cells by Cation and Anion Alloying via Aqueous Spray Deposition Method

9:30 Samira Khelifi (Gent University) - Binary/ternary phases in Cu2ZnGeSe4 thin-film solar cells and their impact on the cell performance (No YouTube stream)

9:50 Talat Khonsor (University Oldenburg) - Above 8 % efficient wide band gap CZTGSe kesterite solar cells by in-process vapor phase incorporation of Germanium in absorber

10:10 Leo Choubrac (Helmholtz-Zentrum Berlin, HZB) - On the effect of off-stoichiometry if CZTSe on the VOC losses and the photovoltaic efficiency potential (No YouTube stream)

10:30 Raquel Caballero (Universidad Autónoma de Madrid) - The effect of Na on Cu2ZnGe(S,Se)4 thin-film solar cells (No YouTube stream)

10:50 Nada Benhaddou (Mohammed V University Rabat, Morocco) - Chemical reaction pathways analysis and optoelectronic properties of two-step processed Cu2ZnGeSe4

11:10 - 11:30 Coffee break

11:30 - 13:30 2nd Session, Interfaces / Gradients, chaired by Claudia S. Schnohr and Bart Vermang

11:30 Antonio Cabas-Vidani (EMPA) - Influence of the rear interface on composition and photoluminescence yield of CZTSSe absorber: a case for Al2O3 intermediate layer

11:50 Jacob Andrade-Arvizu (IREC) - Rear Bandgap Grading Strategies on Sn-Ge Alloyed Kesterite Solar Cells

12:10 Nishant Saini (University Uppsala) - Investigation of backside passivation layer in ultrathin CZTS solar cells

12:30 Marcel Placidi (IREC) - Controlling the anionic ratio and gradient in kesterite technology (No YouTube stream)

12:50 Filipe Martinho (Technical University of Denmark, DTU) - Enabling high-efficiency chalcogenide/Si tandem solar cells: a comparative study of different chalcogenide top cells on a thermally resilient Si bottom cell

13:10 Claudia Hartmann (HZB) - Chemical and electronic structure of the heavily intermixed (Cd,Zn)S:Ga/CuSbS2 interface (No YouTube stream)

13:30 - 14:30 Lunch break

14:30 - 16:40 3rd Session, Novel materials & concepts, chaired by Phil Dale and Jonathan J. Scragg

15:00 Guy Brammertz (IMEC, originally planned: A. Bin Shams) - Thermal Processing of Multifunctional UV-selective Zn(S,Se) Thin-Films for Transparent Solar Cells

15:20 Nicolae Spalatu (Taltech) - Post-Processing Strategies for Efficient Antimony Selenide Thin Film Solar Cell Technology

15:40 José A. Márquez (HZB) - BaZrS3 chalcogenide perovskite thin films from oxide precursors (No YouTube stream)

16:00 Marco Gonzalez (University Oldenburg) - Growth dependent morphological and opto-electronic properties of ultra-thin MoS2/WS2 layers and heterostructure

16:20 Pedro Vidal-Fuentes (IREC) - Bulk and interfacial limiting factors on Sb2Se3 thin film solar cells

17:00 - 18:00 Poster session

P1 Galina Gurieva (HZB) - Cu/Zn disorder in Cu2ZnSn(SxSe1-x)4 monograins: the result of “ordering” procedure

P2 Xiaofeng Li (Taltech) - Study of the properties of Cu2GeS3 monograin powders for photovoltaic applications

P3 Thomas Ratz (CESAM, Q-MAT, IMEC) - First principle study of kesterite Cu2ZnXS4 (X=Sn,Ge,Si) materials: investigation of opto-electronic properties as input for theoretical modelling of solar cell efficiency

P4 Chris Bluhm (Uni Halle) - Investigation of NaF incorporation in co-evaporated Cu2ZnSnSe4 thin films

P5 Susan Schorr (HZB) - Band gap energy variations in kesterite-type compound semiconductors: influence of off-stoichiometry

P6 Matteo Valentini (ENEA) - Transparent back contact based on MoS2 in CZTS solar cell for tandem application

P7 Sara Engberg (DTU) - A study on the formation of thin-film CZTS solar cells via the aprotic molecular ink approach

P8 Sergiu Levcenco (Uni Leipzig) - Polarized infrared reflectivity of Cu2CdSnS4 single crystals

P9 Binayak Mukherjee (Uni Trento) - Full cation disorder in Kesterite and its effect on electronic structure

P10 Ibrahim Simsek (HZB) - BaZrS3 thin films from solution-based processing

P11 Charif Tamin (Interdisciplinaire Carnot de Bourgogne, ICB) - Improvement of the absorber/buffer hetero-interface by partial Zn substitution in the pure sulfide kesterite

P12 Jako Siim Eensalu (Taltech) - Fabrication of Sb2S3 thin films from halide-free precursors by ultrasonic spray pyrolysis for solar cell applications

P13 Ketan Lohani (Uni Trento) - Effect of different production conditions on the stability of metastable disordered coppertinsulphide (Cu2SnS3, CTS) polymorph

P14 Hamide Kavak (Çukurova University) - Elaboration the effect of the current on composition of CZTS absorber layer utilizing simple two electrodes and single step electrochemical deposition method

P15 Xinwei Wang (Imperial College London) - Upper Bound of Photovoltaic Efficiency of Metal Chalcogenide Solar Cells

P16 Hao Xin (Nanjing University of Posts & Telecommunications ) - The effect of Sn precursor oxidation on the reaction path and open circuit voltage deficit of DMSO solution processed kesterite solar cells

Day 2 - 27h November

9:00 - 11:10 4th Session, Material / device characterization, chaired by Lydia Wong and Romain Carron

9:30 Zacharie Jehl Li-Kao (IREC) - Defect depth-profiling in kesterite absorbers by means of chemical etching and surface analysis

9:50 Enric Grau-Luque (IREC) - Combinatorial analysis of the Cu2ZnGeSe4 compound: influence of the off-stoichiometry on defect formation and solar cell performance (No YouTube stream)

10:10 Konrad Ritter (University Leipzig) - Influence of off-stoichiometry on element specific average bond lengths in CZTSe, CZTS and CZGSe

10:30 Ha Kyung Park (Ewha Womans University, Seoul) - Illumination-induced characteristic of sodium passivated Cu2ZnSn(S,Se)4 thin-film solar cells

10:50 Samantha Mbafan Lyam (University Halle) - Open circuit voltage deficit in Kesterite solar cells: A perspective from red light metastability

11:25 - 11:45 Coffee break

11:45 - 13:45 5th Session, Fundamentals, chaired by Maarja Grossberg and Samira Khelifi

11:45 Daniel Fritsch (HZB) - What’s the crystal structure of (Ag0,5Cu0,5)2ZnSnSe4?

12:05 Eleonora Isotta (University Trento) - Effect of Cu-Zn disorder on the electronic properties of kesterite

12:25 Ubaidah Syafiq (University Trento) - Observation of order-disorder transition in CZTS thin film through Seebeck coefficient

12:45 Ashwin Hariharan (University Oldenburg) - Numerical and analytical modelling of time-resolved photoluminescence spectroscopy for two-defect level system

13:05 Andrea Crovetto (HZB) - Assessing the defect tolerance of kesterite-inspired solar absorbers

13:25 Hannes Hempel (HZB) - Screening novel chalcogenide PV materials for low voltage losses (No YouTube stream)

13:35 - 14:35 Lunch break

14:35 Summary of the workshop, mainly chaired by Edgardo Saucedo

Brainstorming towards the future of Kesterite+ Research

Announcement of next year's workshop host

~ 16:00 Ending