Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Geert Brocks"'
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Mixed halide perovskite undergoes halide segregation under illumination, which impairs its functionality as solar cells. Bobbert et al. present a unified thermodynamic theory to explain the phase separation behaviour that takes into account both grou
Externí odkaz:
https://doaj.org/article/600b87bd87a9474c88e0dbb59769cadc
Autor:
Sridevi Krishnamurthi, Geert Brocks
Publikováno v:
npj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-6 (2021)
Abstract Two-dimensional (2D) lateral heterojunctions between different transition metal dichalcogenides (TMDCs) have been realized in recent years. Homogeneous semiconducting TMDC layers are characterized by a topological invariant, their in-plane e
Externí odkaz:
https://doaj.org/article/90c4e68e41f54e8dbacaea190bf19c96
Autor:
Yuwei Guo, Sofia Apergi, Nan Li, Mengyu Chen, Chunyang Yin, Zhongcheng Yuan, Feng Gao, Fangyan Xie, Geert Brocks, Shuxia Tao, Ni Zhao
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Perovskite light emitting diodes suffer from operational stability, showing rapid decay of performance within minutes to hours after turn-on. Here, the authors investigate how the steric and Coulomb interaction of ammonium passivation molecules with
Externí odkaz:
https://doaj.org/article/322985d545814fe6bf3fdbd458de5301
Autor:
Shuxia Tao, Ines Schmidt, Geert Brocks, Junke Jiang, Ionut Tranca, Klaus Meerholz, Selina Olthof
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
The band gap of metal halide perovskites can be tuned by changing composition, but the underlying mechanism is not well understood. Here the authors determine, by experiments and theoretical analysis, the energy levels of all primary tin- and lead-ba
Externí odkaz:
https://doaj.org/article/01b16653cec1433d9dc54083aed6e50f
Autor:
Xin Zhang, Weiming Qiu, Sofia Apergi, Shivam Singh, Paulo Marchezi, Wenya Song, Christian Sternemann, Karim Elkhouly, Dong Zhang, Aranzazu Aguirre, Tamara Merckx, Anurag Krishna, Yuanyuan Shi, Andrea Bracesco, Cristian van Helvoirt, Frennie Bens, Valerio Zardetto, Jan D’Haen, Anran Yu, Geert Brocks, Tom Aernouts, Ellen Moons, Shuxia Tao, Yiqiang Zhan, Yinghuan Kuang, Jef Poortmans
Publikováno v:
ACS Energy Letters. :2532-2542
Publikováno v:
ACS Energy Letters, 8, 943-949. American Chemical Society
The two-dimensional (2D) mixed halide perovskite PEA2Pb(I1-xBrx)4 exhibits high phase stability under illumination as compared to the three-dimensional (3D) counterpart MAPb(I1-xBrx)3. We explain this difference using a thermodynamic theory that cons
Publikováno v:
Journal of Physical Chemistry C, 127(2), 1189-1197. American Chemical Society
Lattice defects affect the long-term stability of halide perovskite solar cells. Whereas simple point defects, i.e., atomic interstitials and vacancies, have been studied in great detail, here we focus on compound defects that are more likely to form
Publikováno v:
ACS Applied Materials and Interfaces, 14(30), 34208-34219. American Chemical Society
Despite the rapid progress in perovskite solar cells, their commercialization is still hindered by issues regarding long-term stability, which can be strongly affected by metal oxide-based charge extraction layers next to the perovskite material. Wit
Autor:
Ningyu Ren, Pengyang Wang, Junke Jiang, Renjie Li, Wei Han, Jingjing Liu, Zhao Zhu, Bingbing Chen, Qiaojing Xu, Tiantian Li, Biao Shi, Qian Huang, Dekun Zhang, Sofia Apergi, Geert Brocks, Chenjun Zhu, Shuxia Tao, Ying Zhao, Xiaodan Zhang
Publikováno v:
Advanced Materials.
Autor:
Zhaotong Qin, Haibo Xue, Minchao Qin, Yuhao Li, Xiao Wu, Wei‐Ru Wu, Chun‐Jen Su, Geert Brocks, Shuxia Tao, Xinhui Lu
Publikováno v:
Small : Nano Micro, 19(12):2206787. Wiley-VCH Verlag
Organic A′-site ligand structure plays a crucial role in the crystal growth of 2D perovskites, but the underlying mechanism has not been adequately understood. This problem is tackled by studying the influence of two isomeric A′-site ligands, lin