Defect Engineering in Earth‐Abundant Cu2ZnSn(S,Se)4 Photovoltaic Materials via Ga3+‐Doping for over 12% Efficient Solar Cells

Y Du, S Wang, Q Tian, Y Zhao, X Chang… - Advanced Functional …, 2021 - Wiley Online Library
The efficiency of earth‐abundant Cu2ZnSn (S, Se) 4 (CZTSSe) solar cells is considerably
lower than the Shockley–Queisser limit. One of the main reasons for this is the presence of …

Device architecture engineering: progress toward next generation perovskite solar cells

T Webb, SJ Sweeney, W Zhang - Advanced functional materials, 2021 - Wiley Online Library
Over the past decade, perovskite solar cells (PSCs) have quickly established themselves as
a promising technology boasting both high efficiency and low processing costs. The rapid …

A band-gap-graded CZTSSe solar cell with 12.3% efficiency

KJ Yang, DH Son, SJ Sung, JH Sim, YI Kim… - Journal of Materials …, 2016 - pubs.rsc.org
Although Cu2ZnSn (S, Se) 4 (CZTSSe) has attracted attention as an alternative to
CuInGaSe2 (CIGS) as an absorber material in solar cells, its low efficiency is a serious …

Impact of Urbach energy on open-circuit voltage deficit of thin-film solar cells

J Chantana, Y Kawano, T Nishimura… - Solar Energy Materials …, 2020 - Elsevier
Correlation between Urbach energy (EU) and open-circuit voltage deficit (V OC, def) among
conventional as well as emerging thin-film solar cells, ie Cu (In, Ga) Se 2 (CIGSe), Cu (In …

Improvement of voltage deficit of Ge-incorporated kesterite solar cell with 12.3% conversion efficiency

S Kim, KM Kim, H Tampo, H Shibata… - Applied Physics …, 2016 - iopscience.iop.org
We demonstrate the improved efficiency of a Cu 2 Zn (Sn 1− x Ge x) Se 4 (CZTGSe) thin-film
solar cell with a conversion efficiency of 12.3%; this cell exhibits a greatly improved open …

Impact of semiconductor band tails and band filling on photovoltaic efficiency limits

J Wong, ST Omelchenko, HA Atwater - ACS Energy Letters, 2020 - ACS Publications
Since the seminal work of Shockley and Queisser, assessing the detailed balance between
absorbed and emitted radiative fluxes from a photovoltaic absorber has been the standard …

Ag, Ge dual-gradient substitution for low-energy loss and high-efficiency kesterite solar cells

J Fu, D Kou, W Zhou, Z Zhou, S Yuan, Y Qi… - Journal of Materials …, 2020 - pubs.rsc.org
A major obstacle hindering further development of kesterite Cu2ZnSn (S, Se) 4 (CZTSSe)
solar cells is the inherent recombination losses that occur both via bulk defects and charge …

Radiative efficiency limit with band tailing exceeds 30% for quantum dot solar cells

J Jean, TS Mahony, D Bozyigit, M Sponseller… - ACS Energy …, 2017 - ACS Publications
Thin films of colloidal quantum dots (QDs) are promising solar photovoltaic (PV) absorbers
in spite of their disordered nature. Disordered PV materials face a power conversion …

Optoelectronic and material properties of nanocrystal-based CZTSe absorbers with Ag-alloying

CJ Hages, MJ Koeper, R Agrawal - Solar Energy Materials and Solar Cells, 2016 - Elsevier
In this work, the benefits of Ag-alloying in kesterite solar cells are explored in terms of
tunable band gap, improved grain growth, improved minority carrier lifetime, reduced defect …

Generalized quantum efficiency analysis for non-ideal solar cells: Case of Cu2ZnSnSe4

CJ Hages, NJ Carter, R Agrawal - Journal of Applied Physics, 2016 - pubs.aip.org
Detailed quantum efficiency (QE) analysis of a nanoparticle-based Cu 2 ZnSnSe 4 (CZTSe)
solar cell has been conducted to understand photogenerated carrier collection in the device …