H2020Индивидуална стипендия2016–2018

NANOPTO · Novel processing of colloidal nanocrystals for optoelectronic applications

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2016-09-12 → 2018-09-11
Финансиране от ЕС: 170 122 €
Участници: 1
Схема: MSCA-IF-EF-ST

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Накратко на български

Колоидни полупроводникови нанокристали се изследват за създаване на по-ефективни слънчеви панели и светодиоди. Тези технологии могат да доведат до гъвкави дисплеи с чисти цветове и по-добри източници на бяла светлина.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Novel processing of colloidal nanocrystals for optoelectronic applications

The project NANOPTO focused on the development of colloidal semiconductor nanocrystals showing high photoluminescence and conductivity for the development of efficient solar cells and light-emitting diodes. In particular, the project proposed the development of a “dot-in-matrix” system able to demonstrate these properties. Colloidal semiconductor nanocrystals have been studied and optimized since the early nineties and they are now finding application in consumer electronics products such as televisions. Nevertheless, in televisions, nanocrystals acts as a colour conversion system where they absorb the light from the TV backlight panel and they emit an individual colour depending on their size and chemical composition. Such system allows for higher brightness and a greater colour volume than before but does not employ true light-emitting diodes (LEDs) based on nanocrystals. In fact, despite the desirable light-emission properties, LEDs based on nanocrystals still struggle in reaching the required performance for application in consumer electronics products due to various issues affecting their performance during device fabrication and operation. Importantly, development of highly efficient LEDs based on nanocrystals for example could pave the way to flexible displays with high colour purity or more efficient large area white-light sources that could lead the development of novel products and put Europe in a dominant position in these technologies. Similarly, solar cells based on colloidal semiconductor nanocrystals show still limited efficiency compared to other competing materials (for example perovskite and organic semiconductor). Yet, colloidal nanocrystals are very promising for the fabrication of solar cells operating in the infrared spectral region where commonly available silicon solar cells show limited light absorption. Development of a nanocrystal solar cell operating in the infrared spectrum would allow increasing the efficiency of commercially available technologies by creating a so-called “tandem” cell, thus improving energy generation.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

NANOPTO aims at developing novel physicochemical routes to obtain a semiconductor matrix embedding dispersed quantum-dots (dots-in-matrix) starting from colloidal nanocrystals.In recent years, a multitude of different semiconductor materials have been synthesized and studied to increase the performance of current technologies or to develop new and attractive applications. As a first-order approximation, materials boosting high photoluminescence (PL) quantum yield (PLQY) possess low or hindered charge mobility, as pristine colloidal semiconductor nanocrystals (NCs). To overcome this limitation, many different NCs processing techniques have been developed, but all of them either cause the formation of charge trap-states on the NCs surface (thus quenching the PL) or do not significantly enhance the charge mobility. For this reason, NANOPTO will tackle this fundamental limitation of NCs by developing novel general methods to enhance their charge mobility without creating surface trap-states, thus leading the way to the development of more efficient light-emitting diodes (LEDs) and solar cells that can be processed in solution. In particular, NANOPTO aims at exploiting both chemical and physical routes to prepare colloidal core-shell NCs and solder their shells in solid-state thus creating a bulk semiconductor matrix (granting enhance charge mobility) embedding quantum-dots (granting the desired optical properties).

Оригинален текст от CORDIS (на английски).

Участници

FUNDACIO INSTITUT DE CIENCIES FOTONIQUES · CastelldefelsКоординаторИспания