Controllable CsxFA1–xPbI3 Single-Crystal Morphology via Rationally Regulating the Diffusion and Collision of Micelles toward High-Performance Photon Detectors

2019 ◽  
Vol 11 (14) ◽  
pp. 13812-13821 ◽  
Author(s):  
Huamin Wang ◽  
Haodi Wu ◽  
Yeming Xian ◽  
Guangda Niu ◽  
Weinan Yuan ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
Crystal Morphology ◽  
Photon Detectors

High-performance near-infrared photodetectors based on C3N quantum dots integrated with single-crystal graphene

2021 ◽  
Author(s):  
Yun Zhao ◽  
Xiaoqiang Feng ◽  
Menghan Zhao ◽  
Xiaohu Zheng ◽  
Zhiduo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electric Field ◽  
Single Crystal ◽  
High Performance ◽  
Near Infrared ◽  
Fast Response ◽  
Local Electric Field ◽  
Infrared Photodetectors ◽  
Photocurrent Response

Employing C3N QD-integrated single-crystal graphene, photodetectors exhibited a distinct photocurrent response at 1550 nm. The photocurrent map revealed that the fast response derive from C3N QDs that enhanced the local electric field near graphene.

Triple‐Cation and Mixed‐Halide Perovskite Single Crystal for High‐Performance X‐ray Imaging

2021 ◽  
Vol 33 (8) ◽  
pp. 2006010
Author(s):  
Yucheng Liu ◽  
Yunxia Zhang ◽  
Xuejie Zhu ◽  
Jiangshan Feng ◽  
Ioannis Spanopoulos ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
X Ray ◽  
X Ray Imaging ◽  
Halide Perovskite

scholarly journals Polycrystalline SnSe with a thermoelectric figure of merit greater than the single crystal

2021 ◽  
Author(s):  
Chongjian Zhou ◽  
Yong Kyu Lee ◽  
Yuan Yu ◽  
Sejin Byun ◽  
Zhong-Zhen Luo ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Single Crystal ◽  
High Performance ◽  
Figure Of Merit ◽  
Waste Heat ◽  
Electric Energy ◽  
Cost Effective ◽  
Tin Selenide ◽  
Tin Oxides ◽  
Thermally Conductive

AbstractThermoelectric materials generate electric energy from waste heat, with conversion efficiency governed by the dimensionless figure of merit, ZT. Single-crystal tin selenide (SnSe) was discovered to exhibit a high ZT of roughly 2.2–2.6 at 913 K, but more practical and deployable polycrystal versions of the same compound suffer from much poorer overall ZT, thereby thwarting prospects for cost-effective lead-free thermoelectrics. The poor polycrystal bulk performance is attributed to traces of tin oxides covering the surface of SnSe powders, which increases thermal conductivity, reduces electrical conductivity and thereby reduces ZT. Here, we report that hole-doped SnSe polycrystalline samples with reagents carefully purified and tin oxides removed exhibit an ZT of roughly 3.1 at 783 K. Its lattice thermal conductivity is ultralow at roughly 0.07 W m–1 K–1 at 783 K, lower than the single crystals. The path to ultrahigh thermoelectric performance in polycrystalline samples is the proper removal of the deleterious thermally conductive oxides from the surface of SnSe grains. These results could open an era of high-performance practical thermoelectrics from this high-performance material.

Fine-control-valve of halide perovskite single crystal quality for high performance X-ray detection

2021 ◽  
Author(s):  
Weijun Li ◽  
Huayang Li ◽  
Jinmei Song ◽  
Chunjie Guo ◽  
Huimao Zhang ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
Control Valve ◽  
Crystal Quality ◽  
X Ray ◽  
Fine Control ◽  
Halide Perovskite

Solution-Processed Single-Crystal Array for High-Performance Conformable Transistors

2018 ◽  
Vol 39 (4) ◽  
pp. 595-598 ◽  
Author(s):  
Yuying Zhou ◽  
Haiting Wang ◽  
Qingxin Tang ◽  
Yanhong Tong ◽  
Xiaoli Zhao ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
Solution Processed
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