Influence of the Electron Selective Contact on the Interfacial Recombination in Fresh and Aged Perovskite Solar Cells
Reads0
Chats0
TLDR
In this paper , the authors have used TiO2 and SnO2 layers as electron selective contact (ESC) in n-i-p perovskite solar cells configuration.Abstract:
In this work, we have used TiO2 and SnO2 layers as electron selective contact (ESC) in n-i-p perovskite solar cells configuration. To study and compare the ion migration kinetics of these ESC, CsFAMAPbIBr and MAPbI3-based devices were fabricated and characterised in fresh (1 day) and aged (28 days) conditions. Depending on the ESC and perovskite composition, devices reveal a different progression over time in terms of hysteresis and performance. Using transient photovoltage (TPV) and transient photocurrent (TPC) techniques, we studied the kinetics of carrier extraction and recombination, which showed that aged devices present slower recombination kinetics compared to their fresh counterparts, revealing a positive effect of the aging process. Finally, transient of the transient, derived from the TPV technique, discloses that TiO2 accumulates more charges in the ESC/perovskite interface compared to SnO2 and that the ion migration kinetics are directly related to the perovskite composition.read more
Citations
More filters
Journal ArticleDOI
A Low-Cost and Lithium-Free Hole Transport Layer for Efficient and Stable Normal Perovskite Solar Cells
Nikolaos Tzoganakis,Dimitris Tsikritzis,Konstantinos Chatzimanolis,Xiaodong Zhuang,Emmanuel Kymakis +4 more
TL;DR: Li-free 1-Ethyl-3methylimidazolium bis(trifluoromethanesulfonyl)imide (EMIM-TFSI) was proposed in this article as an efficient p-type dopant of X60, resulting in a high quality hole-transport layer with enhanced conductivity and deeper energy levels.
References
More filters
Journal ArticleDOI
Highly efficient and stable planar perovskite solar cells by solution-processed tin oxide
Elham Halvani Anaraki,Elham Halvani Anaraki,Ahmad Kermanpur,Ludmilla Steier,Konrad Domanski,Taisuke Matsui,Taisuke Matsui,Wolfgang Tress,Michael Saliba,Antonio Abate,Antonio Abate,Michael Grätzel,Anders Hagfeldt,Juan-Pablo Correa-Baena +13 more
TL;DR: In this paper, a simple solution-processed technological approach for depositing SnO2 layers in planar PSCs yields a high stabilized power conversion efficiency close to 21%, exhibiting stable performance under real operating conditions for over 60 hours.
Journal ArticleDOI
Evidence for ion migration in hybrid perovskite solar cells with minimal hysteresis
Philip Calado,Andrew M. Telford,Daniel Bryant,Xiaoe Li,Jenny Nelson,Brian C. O’Regan,Piers R. F. Barnes +6 more
TL;DR: Transient optoelectronic measurements combined with device simulations indicate that electric-field screening, consistent with ion migration, is similar in both high and low hysteresis CH3NH3PbI3 cells.
Journal ArticleDOI
Experimental determination of the rate law for charge carrier decay in a polythiophene: Fullerene solar cell
Christopher G. Shuttle,Brian C. O’Regan,Amy M. Ballantyne,Jenny Nelson,Donal D. C. Bradley,J. C. de Mello,James R. Durrant +6 more
TL;DR: In this paper, transient photovoltage and differential charging experiments, complemented by transient absorption data, were used to determine charge carrier lifetimes and densities in a poly(3-hexylthiophene): methanofullerene solar cell at Voc as a function of white light bias intensity.
Journal ArticleDOI
Review on the Application of SnO2 in Perovskite Solar Cells
Journal ArticleDOI
Nonradiative Recombination in Perovskite Solar Cells: The Role of Interfaces
TL;DR: Quantification of the quasi-Fermi level splitting in perovskite films with and without attached transport layers allows to identify the origin of nonradiative recombination, and to explain the VOC of operational devices, proving that in state-of-the-art solar cells,Nonradiatives recombination at the interfaces between the perovkite and the transport layers is more important than processes in the bulk or at grain boundaries.
Related Papers (5)
Hysteresis Analysis of Organolead Halide Perovskite Solar Cells by Transient Current Measurement
Transient photocurrent in hydrogenated amorphous silicon and implications for photodetector devices
D. S. Shen,S. Wagner +1 more