Results 271 to 280 of about 4,496,883 (327)

B‐Site Co‐Doping Coupled with Additive Passivation Pushes the Efficiency of Pb–Sn Mixed Inorganic Perovskite Solar Cells to Over 17%

Advances in Materials, 2023
Pb–Sn mixed inorganic perovskite solar cells (PSCs) have garnered increasing interest as a viable solution to mitigate the thermal instability and lead toxicity of hybrid lead‐based PSCs.
Weihai Zhang, Heng Liu, Yating Qu, Jieshun Cui, Wenjun Zhang, Tingting Shi, Hsing‐Lin Wang   +6 more
semanticscholar   +1 more source

Structure change of Pb melt

Physics Letters A, 2006
Abstract Using viscometer, densitometer, magnetic susceptibility device, DSC and X-ray diffractometer for high temperature (XRD), the Pb melt has been investigated between 800–1200 K. Anomalous changes in the physical properties were found near the same temperature. X-ray diffraction shows that the size of clusters in the low temperature zone is much
Jixin Hou, Hongxuan Guo, Jianjun Sun, Xuelei Tian, Chengwei Zhan, Xubo Qin, Xichen Chen   +6 more
openaire   +1 more source

Josephson effect in a planar Pb-Sn-Pb proximity structure

Solid State Communications, 1975
Abstract Reliable S(lead)-N(tin)-S(lead) junctions using an original planar geometry have been studied. Above the critical temperature of tin d.c. and a.c. Josephson behaviour have been observed for short enough tin film. We also report measurements of the supercurrent temperature dependence in agreement with a simplified proximity effect description.
J.P. Romagnan, A. Gilabert, J.P. Laheurte, J.C. Noiray, E. Guyon   +4 more
openaire   +1 more source

Wafer-Scale Photolithography-Pixeled Pb-Free Perovskite X-ray Detectors.

ACS Nano, 2022
Pb-free perovskite material is considered to be a promising material utilized in next-generation X-ray detectors due to its high X-ray absorption coefficient, decent carrier transport properties, and relatively low toxicity.
Guanhua Dun, Hainan Zhang, Ken Qin, Xichao Tan, Ruiting Zhao, Min Chen, Yao Huang, Xiangshun Geng, Yuan-yuan Li, Yuhua Li, Peng Wan, Guang-Yang Gou, Qixin Feng, Xin-Ran Zheng, R. Liang, D. Xie, Yuanyuan Zhou, Xueyun Wang, H. Tian, Yezhou Yang, Tian-ling Ren   +20 more
semanticscholar   +1 more source

Hyperfine-structure measurements on trapped Pb ii

Physical Review A, 1992
The 6${\mathit{P}}_{3/2}$-6${\mathit{P}}_{1/2}$ magnetic dipole resonance transition in ${\mathrm{Pb}}^{+}$ has been observed by cw laser excitation of an ion cloud stored in a Paul trap and subsequent detection of the fluorescence radiation. From the hyperfine-structure splitting of the spectrum we determine the A factor for the ground state, A ...
, Feng, , Li, , Alheit, , Werth
openaire   +2 more sources

Structure and properties of PbS–polyacrylamide nanocomposites

Applied Physics A, 2005
A synthetic procedure for the incorporation of PbS nanoparticles in a polyacrylamide (PAM) matrix is introduced. The method is based on the simultaneous polymerization of the monomer and thermal decomposition of the dithiooxamide–lead complex. X-ray diffraction analysis revealed that the PbS nanoparticles have a sphalerite crystal structure (galena). A
Nair, PS, Radhakrishnan, T, Revaprasadu, N, Kolawole, GA, Luyt, AS, Đoković, Vladimir   +5 more
openaire   +2 more sources

Electrical Structure of PbS Films

Physical Review, 1960
The electrical properties of chemically deposited lead sulfide films were investigated as a function of frequency from direct current into the microwave range. Conductivity and Hall mobility measurements were made on both the dark and the photoexcited carriers. The dark conductivity is independent of frequency below 100 Mc/sec.
D. P. Snowden, A. M. Portis
openaire   +1 more source

Allanite U–Th–Pb geochronology by ion microprobe

, 2020
Allanite, an epidote group mineral, occurs as a common accessory mineral in igneous, metamorphic rocks and hydrothermal deposits. It contains radioactive elements Th and U, making it a valuable U–Th–Pb geochronometer for various geological processes. Due
Xin Liao, Qiu-li Li, M. Whitehouse, Yueheng Yang, Yu Liu   +4 more
semanticscholar   +1 more source

Time-resolved structural study of Pb(100)

Physical Review Letters, 1993
Time-resolved reflection high-energy electron diffraction is used to study the structural behavior of Pb(100) subjected to 200 ps laser pulses. Analysis of the electron diffraction intensity indicates that residual order is present on the surface at a temperature of 615[plus minus]20 K, where the bulk melting temperature of Pb is 600.7 K.
, Herman, , Elsayed-Ali, , Murphy
openaire   +2 more sources

Electronic structure of Pb- and non-Pb-based phosphate scintillators

Physical Review B, 2006
The electronic structures of Pb and non-Pb containing phosphates, specifically ${\mathrm{Pb}}_{3}{(\mathrm{P}{\mathrm{O}}_{4})}_{2}$, ${\mathrm{Pb}}_{2}{\mathrm{P}}_{2}{\mathrm{O}}_{7}$, $\mathrm{Sc}\mathrm{P}{\mathrm{O}}_{4}$, $\mathrm{Y}\mathrm{P}{\mathrm{O}}_{4}$, and $\mathrm{Lu}\mathrm{P}{\mathrm{O}}_{4}$, are compared using a combination of ...
D. J. Singh, G. E. Jellison, L. A. Boatner   +2 more
openaire   +1 more source