Oxygen-Induced Defect-Healing and Photo-Brightening of Halide Perovskite Semiconductors: Science and Application

Author(s):  
Like Huang ◽  
Ziyi Ge ◽  
Xiaoli Zhang ◽  
Yuejin Zhu

Solution-processed metal halide perovskite (MHP) semiconductors, have exhibited remarkable success in diverse optoelectronic device applications, especially in solar cells, despite having non-negligible density of defect states. The photoluminescence quantum yield...

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1831-1853
Author(s):  
Jaeho Jeon ◽  
Yajie Yang ◽  
Haeju Choi ◽  
Jin-Hong Park ◽  
Byoung Hun Lee ◽  
...  

AbstractTwo-dimensional (2D) layers of transition metal carbides, nitrides, or carbonitrides, collectively referred to as MXenes, are considered as the new family of 2D materials for the development of functional building blocks for optoelectronic and photonic device applications. Their advantages are based on their unique and tunable electronic and optical properties, which depend on the modulation of transition metal elements or surface functional groups. In this paper, we have presented a comprehensive review of MXenes to suggest an insightful perspective on future nanophotonic and optoelectronic device applications based on advanced synthesis processes and theoretically predicted or experimentally verified material properties. Recently developed optoelectronic and photonic devices, such as photodetectors, solar cells, fiber lasers, and light-emitting diodes are summarized in this review. Wide-spectrum photodetection with high photoresponsivity, high-yield solar cells, and effective saturable absorption were achieved by exploiting different MXenes. Further, the great potential of MXenes as an electrode material is predicted with a controllable work function in a wide range (1.6–8 eV) and high conductivity (~104 S/cm), and their potential as active channel material by generating a tunable energy bandgap is likewise shown. MXene can provide new functional building blocks for future generation nanophotonic device applications.


Author(s):  
Cenqi Yan ◽  
Jiaming Huang ◽  
Dong Dong Li ◽  
Gang Li

Tandem solar cells (TSCs) are devices made of multiple junctions with complementary absorption ranges, which aim to overcome the Shockley–Queisser limit of single-junction solar cells. Currently, metal-halide hybrid perovskite solar...


Solar RRL ◽  
2021 ◽  
Author(s):  
Mingcong Wang ◽  
Kai Wang ◽  
Yajun Gao ◽  
Jafar I. Khan ◽  
Wenchao Yang ◽  
...  

2015 ◽  
Vol 3 (30) ◽  
pp. 15372-15385 ◽  
Author(s):  
Yu-Che Hsiao ◽  
Ting Wu ◽  
Mingxing Li ◽  
Qing Liu ◽  
Wei Qin ◽  
...  

Polarization and spin-dependent excited states and charge transport.


Nano Letters ◽  
2016 ◽  
Vol 16 (11) ◽  
pp. 7013-7018 ◽  
Author(s):  
Quentin Jeangros ◽  
Martial Duchamp ◽  
Jérémie Werner ◽  
Maximilian Kruth ◽  
Rafal E. Dunin-Borkowski ◽  
...  

2021 ◽  
Author(s):  
Yang Wang ◽  
Zemin Zhang ◽  
Yangjie Lan ◽  
Qian Song ◽  
Mingzhu Li ◽  
...  

2021 ◽  
pp. 471-480
Author(s):  
Laura E. Mundt ◽  
Fei Zhang ◽  
Axel F. Palmstrom ◽  
Junwei Xu ◽  
Robert Tirawat ◽  
...  

2019 ◽  
Author(s):  
Florian Mathies ◽  
Hampus Näsström ◽  
Oleksandra Shargaieva ◽  
Gopinath Paramasivam ◽  
Eva Unger

Science ◽  
2021 ◽  
Vol 371 (6532) ◽  
pp. eabd8598
Author(s):  
Zhenyi Ni ◽  
Shuang Xu ◽  
Jinsong Huang

Ravishankar et al. claimed that drive-level capacitance profiling (DLCP) cannot resolve trap density in perovskites of given thickness. We point out that the trap densities derived by DLCP are from the differential capacitance at different frequencies; thus, the background charges caused by diffusion and geometry capacitance have been subtracted. Even for the nondifferential doping analysis, the contribution from diffusion capacitance is negligible and that from geometry capacitance is excluded.


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