Wafer-sized 2D Perovskite Single Crystal Thin Film for UV Photodetector

2021 ◽  
Author(s):  
Sheng Wang ◽  
Yuan Chen ◽  
Junjie Yao ◽  
Guoxiang Zhao ◽  
Longzhi Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Well ◽  
Single Crystal ◽  
Lateral Size ◽  
Two Dimensional ◽  
Optoelectronic Materials ◽  
Uv Photodetector ◽  
Inorganic Hybrid ◽  
Photoelectric Properties ◽  
Enhanced Stability

Two-dimensional (2D) organic-inorganic hybrid perovskites is promising for next-generation optoelectronic materials due to their enhanced stability, controllable quantum well thickness and excellent photoelectric properties. The growth of large-lateral size, small...

Two-dimensional organic–inorganic hybrid Ruddlesden–Popper perovskite materials: preparation, enhanced stability, and applications in photodetection

2020 ◽  
Vol 4 (5) ◽  
pp. 2087-2113 ◽  
Author(s):  
Xiangxin Tian ◽  
Yongzhuan Zhang ◽  
Rongkun Zheng ◽  
Di Wei ◽  
Jingquan Liu
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
High Performance ◽  
Single Crystal Growth ◽  
Two Dimensional ◽  
Inorganic Hybrid ◽  
Perovskite Materials ◽  
Enhanced Stability ◽  
Materials Preparation

This review presents the progress of the synthesis, single crystal growth, enhanced stability, and applications as high-performance photodetectors.

Atomic Layer Dependence of Shear Modulus in a Two-Dimensional Single-Crystal Organic–Inorganic Hybrid Perovskite

2019 ◽  
Vol 123 (24) ◽  
pp. 15251-15257 ◽  
Author(s):  
Qikun Li ◽  
Sheng Bi ◽  
Jingyuan Bu ◽  
Chaolong Tang ◽  
Zhongliang Ouyang ◽  
...  
Keyword(s):  
Shear Modulus ◽  
Single Crystal ◽  
Atomic Layer ◽  
Two Dimensional ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

(1,4-Butyldiammonium)CdBr4: a layered organic–inorganic hybrid perovskite with a visible-blind ultraviolet photoelectric response

2018 ◽  
Vol 5 (10) ◽  
pp. 2450-2455 ◽  
Author(s):  
Yuyin Wang ◽  
Chengmin Ji ◽  
Xitao Liu ◽  
Shiguo Han ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Layered Perovskite ◽  
Two Dimensional ◽  
Inorganic Hybrid ◽  
Photoelectric Response ◽  
Photoelectric Properties ◽  
Hybrid Perovskite ◽  
Visible Blind

We report an organic–inorganic hybrid adopting two-dimensional layered perovskite, which shows a visible-blind ultraviolet photoelectric properties.

Preparation of Intercalative Organic/MoO3 Nanohybrid Thin Films and Their VOC Gas Sensing Properties

2004 ◽  
Vol 847 ◽  
Author(s):  
Ichiro Matsubara ◽  
Norimitsu Murayama ◽  
Woosuck Shin ◽  
Noriya Izu
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Single Crystal ◽  
Gas Sensing ◽  
Ex Situ ◽  
Inorganic Hybrid ◽  
Cvd Method ◽  
Gas Sensing Properties ◽  
Sensor Devices ◽  
Voc Sensor

ABSTRACTOrganic/MoO3 nanohybrid thin films have been successfully prepared by an ex-situ intercalation process. The host MoO3 films were first deposited on LaAlO3 (LAO) single crystal substrates by using a CVD method followed by the intercalation of butylammonium ions, (BuNH3)+, into the MoO3 films to give (BuNH3)xMoO3 thin films. The preparation of highly b-axis oriented MoO3 films is crucial to prepare the (BuNH3)xMoO3 films. The (BuNH3)xMoO3 thin films exhibit a resistance-increasing response to aldehyde gases as in the case of bulk samples, whereas no response was observed for methanol, ethanol, chloroform, acetone, toluene, and xylene. The thin film process developed for intercalative organic-inorganic hybrid makes it possible to apply this material in VOC sensor devices.

scholarly journals Thin film transistor based on two-dimensional organic-inorganic hybrid perovskite

2020 ◽  
Vol 69 (19) ◽  
pp. 198102
Author(s):  
Ning Guo ◽  
Zhou Zhou ◽  
Jian Ni ◽  
Hong-Kun Cai ◽  
Jian-Jun Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistor ◽  
Two Dimensional ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

Physical properties of a transition metal oxide: optical and photoelectric properties of single crystal and thin film molybdenum trioxide

1968 ◽  
Vol 304 (1477) ◽  
pp. 211-231 ◽  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Single Crystal ◽  
Single Crystals ◽  
Molybdenum Trioxide ◽  
Polarized Light ◽  
Film Surface ◽  
Activation Energies ◽  
Temperature Range ◽  
Photoelectric Properties

The optical absorption spectra of single crystals and thin films of MoO 3 have been measured in the temperature range 150 to 340 °K with polarized light. At room temperature, the absorption spectrum of a single crystal consists of two peaks at λ 4130 and λ 3930 Å with E || C and only one absorption peak at 4250 Å with E ⊥ C followed by a rapid rise in absorption. The temperature and frequency dependence of the absorption coefficient in the edge over a range of absorption magnitudes 10 2 -10 5 cm -1 are described by expressions of the form K(v, T) = K 0 exp[— (β/kT) (E 0 — hv )]. The temperature dependence of the absorption edge was found to be linear from 340 to 150 °K with a temperature coefficient of — 6.2 x 10 -4 and — 9.3 x 10 -4 eV/°K for E || C and E ⊥ C , respectively. The corresponding temperature co­efficients in thin films are — 2.7 x 10 -4 and —4.0 x 10 -4 eV/°K for E|| and ⊥ to the film surface, respectively. Measurements have been made of the refractive indices of a single crystal and thin films. Ultraviolet irradiation of a thin film of MoO 3 produces a broad colour centre band having a maximum at 8700 Å. Several absorption peaks are resolvable in polarized light. On cooling down to 150 °K, the peak position shifts to shorter wavelength by 400 Å (4.67 x 10 -4 eV/°K). An e. s. r. signal with g = 2.001 ± 0.005 has been observed in the colour film. The electrical conductivity has been measured on single crystals and polycrystalline samples in the temperature range 25 to 500 °C, and the activation energies are found to be 1.83 ± 0.01 eV (intrinsic) and 0.29 to 0.70 eV (extrinsic). Photoconductivity has been measured in single crystals and thin films as a function of photon energy, temperature, and irradiation intensity. Trapping plays a significant role in the conduction phenomena. The thermal activation energies associated with different trapping levels were determined from the photoconductive decay curves and the electrical glow peaks measurements and were found to be in the range 0.16 to 0.64 eV.

Two-dimensional BN-doped ZnO thin-film deposition by a thermionic vacuum arc system

2020 ◽  
Vol 31 (9) ◽  
pp. 6948-6955
Author(s):  
Mustafa Özgür ◽  
Suat Pat ◽  
Reza Mohammadigharehbagh ◽  
Uğur Demirkol ◽  
Nihan Akkurt ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Vacuum Arc ◽  
Zno Thin Film ◽  
Two Dimensional ◽  
Doped Zno ◽  
Thermionic Vacuum Arc

Examination of Aggregation Induced Enhanced Emission in a Propeller Shaped Chiral- Nonconjugated Blue Emitter from Restricted Intramolecular Rotation and J Type π⋯π Stacking Interactions

2021 ◽  
Author(s):  
Gul Yakali
Keyword(s):  
Thin Film ◽  
Small Molecules ◽  
Solid Phase ◽  
Stacking Interactions ◽  
Optoelectronic Materials ◽  
Π Stacking ◽  
Intramolecular Rotation

Fluorescent organic small molecules with the property of aggregation induced enhanced emission in the solid phase (crystall or thin film) have great attention for the design of optoelectronic materials. Generally,...

scholarly journals Conjugated Polymer Coating Enabled Light-resistance Black Phosphorus with Enhanced Stability

2021 ◽  
Author(s):  
XINGYUN Li ◽  
Bin Han ◽  
Yaojie Xu ◽  
Xiao Liu ◽  
Chunhui Zhao ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Polymer Coating ◽  
Black Phosphorus ◽  
Two Dimensional ◽  
Practical Application ◽  
2D Material ◽  
Light Resistance ◽  
Enhanced Stability

As an advanced two-dimensional (2D) material with unique properties, black phosphorus (BP) has attracted great attention in a variety of fields. One of the main obstacles for practical application of...

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