Engineering the optoelectronic properties of semiconductor quantum dots via quantum cutting and quantum entanglement for optoelectronic devices

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2025-05-27 DOI:10.1007/s11082-025-08257-2

Nisar Ali, Hanane At Lahoussine Ouali, Otman Abida, Mohamed Essalhi, Bakhtiar Ul Haq

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引用次数: 0

Abstract

For optimized optoelectronic devices, appropriate photon management is required such that full energy spectrum of the photons are properly captured. In conventional solar cells and photoelectrolytic devices, the electron hole-pair is generated by the incoming photon with energy above a certain threshold. The excess energy being lost to heat as thermalization thus reduces the overall performance of the device. To circumvent the situation, space separated quantum cutting process is used in which a high energy photon can be split into two low energy photons compatible with the environment for exciton generation. Such photon engineering can effectively increase the overall efficiency of photovoltaic devices. In this review, we demonstrate photon splitting via quantum cutting (QC) by semiconductor nanocrystals, where the resonance created in the coupled quantum dots causes quantum entanglement and hence downconversion mechanism.

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利用光电器件的量子切割和量子纠缠来设计半导体量子点的光电特性

对于优化的光电器件，需要适当的光子管理，以便正确捕获光子的全能谱。在传统的太阳能电池和光电解装置中，电子空穴对是由能量超过一定阈值的入射光子产生的。由于热化，多余的能量被热量损失，从而降低了设备的整体性能。为了避免这种情况，采用空间分离量子切割工艺，将一个高能光子分裂成两个与环境相适应的低能光子，从而产生激子。这样的光子工程可以有效地提高光伏器件的整体效率。在这篇综述中，我们展示了半导体纳米晶体通过量子切割（QC）进行光子分裂，其中在耦合量子点中产生的共振导致量子纠缠，从而导致下转换机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.