Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Novel design perovskite electrochemical cell for light-emission and light-detection

Dual-function Perovskite Silicon-integrated Electrochemical Cell

CREDIT
OEA
Dual-function Perovskite Silicon-integrated Electrochemical Cell CREDIT OEA

Abstract:
A new publication from Opto-Electronic Advances, 10.29026/oea.2023.220154 discusses novel design perovskite electrochemical cell for light-emission and light-detection.

Novel design perovskite electrochemical cell for light-emission and light-detection

Sichuan, China | Posted on May 12th, 2023

Although halide perovskite light-emitting devices exhibit exceptional properties such as high efficiency, high color purity, and broad color gamut, their industrial integration generally suffers from the technological complexity of devices' multilayer structure alongside in-operation induced heating poor stability. Halide perovskite light-emitting electrochemical cells are a novel type of perovskite optoelectronic device that differs from the perovskite light-emitting diodes by a simple monolayered architecture. The reported in the paper perovskite light-emitting electrochemical cell consists of a silicon substrate, multifunctional single composite perovskite layer (a mixture of halide perovskite microcrystals, polymer support matrix, and added mobile ions), and transparent single-walled carbon nanotube film top contact. Due to silicon's good thermal conductivity, the device endures 40% lower thermal heating during operation compared to conventional ITO/glass substrate. Moreover, when a positive bias is applied to the device it yields a luminance of more than 7000 cd/m2 at 523 nm (green color). When a negative bias is applied to the device it operates as a photodetector with a sensitivity up to 0.75 A/W (for wavelength in blue or UV regions), specific detectivity of 8.56∙1011 Jones, and linear dynamic range of 48 dB. The technological potential of such a device is proven by the demonstration of a 24-pixel indicator display as well as successful device miniaturization by the creation of electroluminescent images with the smallest features less than 50 μm.

The perovskite light-emitting electrochemical cells are a viable alternative to the conventional perovskite material devise research light-emitting diodes. Not only do perovskite light-emitting electrochemical cells imply having a much simpler architecture and design with one single functional layer replacing multiple active, charge-separation and transport layers of perovskite light-emitting diodes, but also perovskite light-emitting electrochemical cells can possess all extraordinary properties of LEDs, such as high efficiency, high color purity, and broad color gamut. The reason why perovskite light-emitting electrochemical cells are capable of doing that – is completely different from the LEDs operation principle: when electrical bias is applied to the device, mobile positive and negative ions inside of the perovskite layer migrate towards corresponding electrodes dynamically forming a p-i-n structure inside of the perovskite layer, which allows effective electron-hole recombination with photon emission! Comprehensive research on various back-ups to conventional LED technology is a valuable source of diversifying the pool of industrial opportunities.

The reported device demonstrates exceptional light-emitting and light-detecting (“dual-functionality”) characteristics alongside an enhanced in-operation heating durability. This is possible due to the utilization of silicon substrate in the perovskite light-emitting electrochemical cells design. Silicon material is one of the stepping stones of the CMOS technology - complementary metal–oxide–semiconductor technology – technology used in manufacturing of all semiconductor chips, displays, etc. Integration of such an emerging material like perovskite material with silicon brings the R&D community one step closer to obtaining an industrial perovskite light-emitting electrochemical cell.

Last but not least, the broader context benefit of the reported device design – is its ITO-free transparent electrode based on single-walled carbon nanotubes. ITO - Indium-Tin Oxide- is a transparent conductive material widely used in perovskite photovoltaics and optoelectronics. Indium is a depleting element and, thus, the replacement of ITO by other materials based on earth-abundant elements would aid to prevail the indium deficiency in the industry.

# # # # # #

The project at hand results from a flourishing collaboration between Alferov University and ITMO University, both located in St.Petersburg (Russia). The purpose of the research group of Prof. Ivan Mukhin (Renewable Energy Sources Laboratory) from Alferov University is to extend the horizons of conventional semiconductors (Si and III-V group semiconductors) electronics and optoelectronics with innovative device designs (flexible and stretchable electronics) and with original ideas in material synthesis and manufacturing (taking advantage of low-dimensional structures such as semiconductor nanowires). The research group of Prof. Sergey Makarov (Laboratory of Hybrid Nanophotonics and Optoelectronics) from ITMO University not only focuses on fundamental research in the field of halide perovskite photonics and non-linear optics but also puts an enormous effort into the development of photovoltaic and optoelectronic perovskite devices, improvement of their stability and their industrial integration.

####

About Compuscript Ltd
Opto-Electronic Advances (OEA) is a high-impact, open access, peer reviewed monthly SCI journal with an impact factor of 8.933 (Journal Citation Reports for IF2021). Since its launch in March 2018, OEA has been indexed in SCI, EI, DOAJ, Scopus, CA and ICI databases over the time and expanded its Editorial Board to 36 members from 17 countries and regions (average h-index 49).

The journal is published by The Institute of Optics and Electronics, Chinese Academy of Sciences, aiming at providing a platform for researchers, academicians, professionals, practitioners, and students to impart and share knowledge in the form of high quality empirical and theoretical research papers covering the topics of optics, photonics and optoelectronics.

For more information, please click here

Contacts:
Conor Lovett
Compuscript Ltd

Office: 353-614-75205

Copyright © Compuscript Ltd

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Paper:

Related News Press

Perovskites

Shedding light on unique conduction mechanisms in a new type of perovskite oxide November 17th, 2023

Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023

Light guide plate based on perovskite nanocomposites November 3rd, 2023

The efficient perovskite cells with a structured anti-reflective layer – another step towards commercialization on a wider scale October 6th, 2023

Successful morphing of inorganic perovskites without damaging their functional properties October 6th, 2023

News and information

Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023

Night-time radiative warming using the atmosphere November 17th, 2023

New tools will help study quantum chemistry aboard the International Space Station: Rochester Professor Nicholas Bigelow helped develop experiments conducted at NASA’s Cold Atom Lab to probe the fundamental nature of the world around us November 17th, 2023

Display technology/LEDs/SS Lighting/OLEDs

Light guide plate based on perovskite nanocomposites November 3rd, 2023

Possible Futures

Shedding light on unique conduction mechanisms in a new type of perovskite oxide November 17th, 2023

Silver nanoparticles: guaranteeing antimicrobial safe-tea November 17th, 2023

Three-pronged approach discerns qualities of quantum spin liquids November 17th, 2023

Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023

Discoveries

Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023

Night-time radiative warming using the atmosphere November 17th, 2023

New tools will help study quantum chemistry aboard the International Space Station: Rochester Professor Nicholas Bigelow helped develop experiments conducted at NASA’s Cold Atom Lab to probe the fundamental nature of the world around us November 17th, 2023

A new kind of magnetism November 17th, 2023

Announcements

Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023

Night-time radiative warming using the atmosphere November 17th, 2023

New tools will help study quantum chemistry aboard the International Space Station: Rochester Professor Nicholas Bigelow helped develop experiments conducted at NASA’s Cold Atom Lab to probe the fundamental nature of the world around us November 17th, 2023

A new kind of magnetism November 17th, 2023

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023

Night-time radiative warming using the atmosphere November 17th, 2023

New tools will help study quantum chemistry aboard the International Space Station: Rochester Professor Nicholas Bigelow helped develop experiments conducted at NASA’s Cold Atom Lab to probe the fundamental nature of the world around us November 17th, 2023

A new kind of magnetism November 17th, 2023

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project