Exploring the Stability of Novel Wide Bandgap Perovskites by a Robot Based High Throughput Approach

Journal article
(Original article)


Publication Details

Author(s): Chen S, Hou Y, Chen H, Tang X, Langner S, Li N, Stubhan T, Levchuk I, Gu E, Osvet A, Brabec C
Journal: Advanced Energy Materials
Publication year: 2017
ISSN: 1614-6832
eISSN: 1614-6840
Language: English


Abstract


Currently, lead-based perovskites with mixed multiple cations and hybrid

halides are attracting intense research interests due to their promising

stability and high efficiency. A tremendous amount of 3D and 2D perovskite

compositions and configurations are causing a strong demand for high

throughput synthesis and characterization. Furthermore, wide bandgap

(≈1.75 eV) perovskites as promising top-cell materials for perovskite–silicon

tandem configurations require the screening of different compositions to

overcome photoinduced halide segregation and still yielding a high opencircuit

voltage (Voc). Herein, a home-made high throughput robot setup is

introduced performing automatic perovskite synthesis and characterization.

Subsequently, four kinds of compositions (i.e., cation mixtures of Cs–methylammonium

(MA), Cs– formamidinium (FA), MA–FA, and FA–MA) with an

optical bandgap of ≈1.75 eV are identified as promising device candidates.

For Cs–MA and Cs–FA films it is found that the Br–I phase segregation

indeed can be overcome. Moreover, Cs–MA, MA–FA, and Cs–FA based

devices exhibit an average Voc of 1.17, 1.17, 1.12 V, and their maximum values

approached 1.18, 1.19, 1.14 V, respectively, which are among the highest Voc

(≈1.2 V) values for ≈40% Br perovskite. These findings highlight that the high

throughput approach can effectively and efficiently accelerate the invention of

novel perovskites for advanced applications.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Chen, Shi
Institute Materials for Electronics and Energy Technology (i-MEET)
Chen, Haiwei
Institute Materials for Electronics and Energy Technology (i-MEET)
Gu, Ening
Institute Materials for Electronics and Energy Technology (i-MEET)
Hou, Yi
Institute Materials for Electronics and Energy Technology (i-MEET)
Langner, Stefan
Institute Materials for Electronics and Energy Technology (i-MEET)
Levchuk, Ievgen
Institute Materials for Electronics and Energy Technology (i-MEET)
Li, Ning Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Tang, Xiaofeng
Institute Materials for Electronics and Energy Technology (i-MEET)


Additional Organisation
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


External institutions with authors

Bayerisches Zentrum für Angewandte Energieforschung e.V. (ZAE Bayern)


Research Fields

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials
Neue Materialien und Prozesse
Research focus area of a faculty: Technische Fakultät


How to cite

APA:
Chen, S., Hou, Y., Chen, H., Tang, X., Langner, S., Li, N.,... Brabec, C. (2017). Exploring the Stability of Novel Wide Bandgap Perovskites by a Robot Based High Throughput Approach. Advanced Energy Materials. https://dx.doi.org/10.1002/aenm.201701543

MLA:
Chen, Shi, et al. "Exploring the Stability of Novel Wide Bandgap Perovskites by a Robot Based High Throughput Approach." Advanced Energy Materials (2017).

BibTeX: 

Last updated on 2019-11-07 at 09:18