A novel hybrid hole transport layer (HTL) of CuInSe quantum dots (QDs)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) was developed to enhance the performance of halide metal perovskite (MAPbI)-based photodetectors. The introduction of CuInSe QDs not only improved the wettability of the PEDOT:PSS HTL for the growth of perovskite crystals but also facilitated the transportation of holes from the perovskite to the HTL. As a result, both responsivity and detectivity of the device were increased dramatically by CuInSe QDs hybrid HTL, showing excellent photoresponsivity of 240 mA/W, larger ratio of photocurrent density to dark current density of 4.1 × 10, fast on-off switching properties of <0.02 s, and remarkable detectivity values of 1.02 × 10 Jones at 580 nm and above 5.01 × 10 Jones over the visible light region without an external bias voltage. In addition, the photodetectors also showed excellent thermal stability in the range of 10-110 °C. Therefore, a unique design idea of a hole transport material would be an anticipated direction for efficient halide metal perovskite-based devices.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.8b13777 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Triangular-shaped Cu-Zn-In-Se-based nanocrystals with narrow near infrared photoluminescence.
Nanoscale
January 2025
Physical Chemistry, TU Dresden, Zellescher Weg 19, 01069 Dresden, Germany.
Tunable optical properties exhibited by semiconductor nanocrystals (NCs) in the near infrared (NIR) spectral region are of particular interest in various applications, such as telecommunications, bioimaging, photodetection, photovoltaics, . While lead and mercury chalcogenide NCs do exhibit exemplary optical properties in the NIR, Cu-In-Se (CISe)-based NCs are a suitable environment-friendly alternative to these toxic materials. Several reports of NIR-emitting (quasi)spherical CISe NCs have been published, but their more complex-shaped counterparts remain rather less explored.
View Article and Find Full Text PDFChemical Vapor Deposition Growth of 2D Nonlayered CuInSe for Vacancy-Assisted Broadband Photodetection.
Small
January 2025
Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China.
The properties and device applications of 2D semiconductors are highly sensitive to intrinsic structural defects due to their ultrathin nature. CuInSe (CIS) materials own excellent optoelectronic properties and ordered copper vacancies, making them widely applicable in photovoltaic and photodetection fields. However, the synthesis of 2D CIS nanoflakes remains challenging due to the nonlayered structure, multielement composition, and the competitive growth of various by-products, which further hinders the exploration of vacancy-related optoelectronic devices.
View Article and Find Full Text PDFGrowth of Ultrathick CuInS Shells for Supersized Core/Shell Nanoparticles.
Inorg Chem
December 2024
Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, College of Physics, Jilin University, Qianjin Street No. 2699, Changchun 130012, China.
Article Synopsis
- Growth of ultrathick shells on quantum dots (QDs) enhances the properties of nanoparticles (NPs).
- CuInSe quantum dots were created with a uniform surface, allowing for a superthick shell (∼45 nm) of CuInS to be added, resulting in large core/shell nanostructures (~100 nm).
- This technique was further applied to create other core/shell configurations, indicating potential for new chemical and physical phenomena in nanomaterials, beneficial for research and commercial applications.
Optical Applications of CuInSe Colloidal Quantum Dots.
ACS Omega
October 2024
School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People's Republic of China.
The distinctive chemical, physical, electrical, and optical properties of semiconductor quantum dots (QDs) make them a highly fascinating nanomaterial that has been extensively studied. The CuInSe (CIS) QDs demonstrates great potential as a nontoxic alternative to CdSe and PbSe QDs for realizing high-performance solution-processed semiconductor devices. The CIS QDs show strong light absorption and bright emission across the visible and infrared spectrum and have been designed to exhibit optical gain.
View Article and Find Full Text PDFA Multistate Thermoresponsive Smart Window Based on a Multifunctional Luminescent Solar Concentrator.
ACS Appl Mater Interfaces
March 2024
College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
Conventional luminescent solar concentrators (LSCs) usually only have the ability to absorb solar energy and convert it to electricity but are not able to regulate the transmitted light. Herein, a multistate thermoresponsive smart window (SW) based on LSC has been fabricated, in which the stimuli-responsive host layer consists of polydimethylsiloxane (PDMS) and ethylene glycol solution (EGS) microdroplets stacking with LSC layer-based on near-infrared (NIR) CuInSeS/ZnS core/shell quantum dots (QDs) and PDMS matrix. As-synthesized CISSe/ZnS QDs with broad NIR absorption in LSC exhibit controllable emission spectra over 833-1088 nm and high photoluminescence (PL) quantum yield from 45 to 83%.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!