On the Importance of Joint Mitigation Strategies for Front, Bulk, and Rear Recombination in Ultrathin Cu(In,Ga)Se2 Solar Cells

TS Lopes, J de Wild, C Rocha, A Violas… - … Applied Materials & …, 2021 - ACS Publications
Several optoelectronic issues, such as poor optical absorption and recombination, limit the
power conversion efficiency of ultrathin Cu (In, Ga) Se2 (CIGS) solar cells. To mitigate …

Metastable defects decrease the fill factor of solar cells

TP Weiss, O Ramírez, S Paetel, W Witte, J Nishinaga… - Physical Review …, 2023 - APS
Cu (In, Ga) Se 2-based solar cells exceed power conversion efficiencies of 23%. However,
the fill factor of these solar cells, with best values around 80%, is relatively low (Si reaches …

Challenges in the deposition of (Ag, Cu)(In, Ga) Se2 absorber layers for thin-film solar cells

S Essig, S Paetel, TM Friedlmeier… - Journal of Physics …, 2021 - iopscience.iop.org
The partial replacement of Cu by Ag in Cu (In, Ga) Se 2 thin-film solar cells is strategically
interesting to achieve smooth devices with high conversion efficiencies. Yet, the industrial …

Insights into the Effects of RbF‐Post‐Deposition Treatments on the Absorber Surface of High Efficiency Cu(In,Ga)Se2 Solar Cells and Development of Analytical and …

R Fonoll‐Rubio, S Paetel… - Advanced Energy …, 2022 - Wiley Online Library
The latest record efficiencies of the Cu (In, Ga) Se2 (CIGSe) photovoltaic technology are
driven by heavy alkali post‐deposition treatments (PDTs). Despite their positive effect …

Heat- and light-soaking behavior of RbF-treated Cu(In,Ga)Se2 solar cells with two different buffer layers

M Jahandardoost, M Nardone, TM Friedlmeier… - Journal of Materials …, 2022 - Springer
Degradation in RbF post-deposition-treated (PDT) CIGS solar cells under heat/light/bias
stress is evaluated for two different buffers, CdS and Zn (O, S). Initial efficiency of baseline …

How small changes make a difference: Influence of low silver contents on the effect of RbF‐PDT in CIGS solar cells

T Helder, A Kanevce, M Zinßer… - Progress in …, 2023 - Wiley Online Library
Despite the efficiencies above 20% achieved with (Ag, Cu)(In, Ga) Se2 (ACIGS) solar cells,
further efficiency improvements are necessary. One possibility is the implementation of a …

Optical and electrical loss analysis of thin-film solar cells combining the methods of transfer matrix and finite elements

M Zinßer, T Helder, A Bauer… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
In order to improve the power conversion efficiency of thin-film solar cells, it is essential to
identify and quantify their dominant loss mechanisms and, thus, guide experimental device …

Impact of Ag content on device properties of Cu (In, Ga) Se2 solar cells

A Kanevce, S Essig, S Paetel, W Hempel… - EPJ …, 2022 - epjpv.epj.org
Partial substitution of Cu by Ag in Cu (In, Ga) Se 2 (CIGS) solar cells is advantageous as it
allows lower temperature growth while maintaining high performance. To understand the …

[HTML][HTML] Holistic yield modeling, top-down loss analysis, and efficiency potential study of thin-film solar modules

M Zinßer, T Helder, T Magorian Friedlmeier… - Communications …, 2023 - nature.com
A holistic simulation of a photovoltaic system requires multiple physical levels-the
optoelectronic behavior of the semiconductor devices, the conduction of the generated …

Nonradiative Recombination Dominates Voltage Losses in Cu(In,Ga)Se2 Solar Cells Fabricated using Different Methods

AM Bothwell, J Wands, MF Miller, A Kanevce… - Solar …, 2023 - Wiley Online Library
Voltage losses reduce the photovoltaic conversion efficiency of thin‐film solar cells and are
a primary efficiency limitation in Cu (In, Ga) Se2. Herein, voltage loss analysis of Cu (In, Ga) …