A Colloidal‐Quantum‐Dot‐Based Self‐Charging System via the Near‐Infrared Band

Baek, Se Woong; Cho, Jung Min; Kim, Jooseong; Kim, Changjo; Na, Kwangmin; Lee, Sang Hoon; Jun, Sunhong; Song, Jee-Hun; Jeong, Sohee; Choi, Jang Wook; Lee, Jung‐Yong

doi:10.1002/adma.201707224

Cited by 17 publications

(5 citation statements)

References 33 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…148 PbS CQD has also found applications in wearable PV devices to power wearable healthcare devices. 149 Remarkably, the device reached a PCE of 10.05% at AM 1.5 condition.…”

Section: Other Applicationsmentioning

confidence: 89%

Colloidal quantum dot materials for next-generation near-infrared optoelectronics

Meng,

Xu,

Zhang

et al. 2024

Chem. Commun.

View full text Add to dashboard Cite

show abstract

“…148 PbS CQD has also found applications in wearable PV devices to power wearable healthcare devices. 149 Remarkably, the device reached a PCE of 10.05% at AM 1.5 condition.…”

Section: Other Applicationsmentioning

confidence: 89%

Colloidal quantum dot materials for next-generation near-infrared optoelectronics

Meng,

Xu,

Zhang

et al. 2024

Chem. Commun.

View full text Add to dashboard Cite

show abstract

“…Colloidal quantum dots (CQDs) are attractive as emerging photovoltaic materials because of their unique properties including size-dependent bandgap tunability that allows to extend the absorption spectra to infrared − and charge multiplication enabling to overcome the Shockley-Queisser limit. − ,− However, the performance in CQD solar cells has been often limited by the low absorption valley near the excitonic peak of CQD …”

Section: Introductionmentioning

confidence: 99%

Unlocking the Potential of Colloidal Quantum Dot/Organic Hybrid Solar Cells: Band Tunable Interfacial Layer Approach

Lee,

Kim,

Kim

et al. 2023

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Hybrid colloidal quantum dot (CQD)/organic architectures are promising candidates for emerging optoelectronic devices having high performance and inexpensive fabrication. For unlocking the potential of CQD/organic hybrid devices, enhancing charge extraction properties at electron transport layer (ETL)/CQD interfaces is crucial. Hence, we carefully adjust the interface properties between the ETL and CQD layer by incorporating an interfacial layer for the ETL (EIL) using several types of cinnamic acid ligands. The EIL having a cascading band offset (ΔE C ) between the ETL and CQD layer suppresses the potential barrier and the local charge accumulation at ETL/CQD interfaces, thereby reducing the bimolecular recombination. An optimal EIL effectively expands the depletion region that facilitates charge extraction between the ETL and CQD layer while preventing the formation of shallow traps. Representative devices with an EIL exhibit a maximum power conversion efficiency of 14.01% and retain over 80% of initial performances after 300 h under continuous maximum power point operation.

show abstract

“…When photon energy greater than its bandgap impinges on QDs produces an electron-hole pair (or exciton) state [5]. The excited electrons relax to the ground state releasing photons of energy in the range from ultraviolet (UV) to near-infrared (NIR) range [6]. The s-QDs emission is a sharp and symmetric band centered at characteristic energy depending on the type and size of the material (Fig.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of quantum dots and their usage in solar cells: insight from the novel researches

et al. 2021

View full text Add to dashboard Cite

Quantum dots (QDs) are three-dimensional (3D) quantum confinement materials with confined size on the nanoscale. They are semiconductors, possessing a tunable energy gap in the range of visible light energy. In QDs, the 3D quantum confinements of excitons result in tunable fluorescence emission relying upon the QDs size and shape when excited by monochromatic light. Besides, the attempts to improve their outstanding optoelectronic properties, i.e. superior to those of bulk, thin-film semiconductor and organic dyes, many efforts have been conducted, in recent times, regarding sustainable QDs synthesis aiming at biocompatibility and cost reduction. Among the green synthesis routes of QDs there are two distinguished; namely inorganic QDs and carbon-based QDs. The first route is made of low-bandgap metal chalcogenide either extracted from a living being, e.g. earthworm, or capped with an organic ligand. While, the second route is made of carbon-core and passivating the surface with different functional groups, namely carboxyl, hydroxyl, in addition to amine. These functional groups are derived from coke or organic carbon reservoir, i.e. fruits and their juice, animal, vegetable, spice and waste paper. Numerous fundamental applications of QDs, such as biomedicine, sensing, catalysis, and solar cells, exploit the characteristic fluorescence emission of QDs, quantum yields and their modulation upon interaction with the external environment. In this review, two prototype QDs examples are used to highlight the route to sustainable QDs synthesis and solar cells implementation and some perspectives.

show abstract

A Colloidal‐Quantum‐Dot‐Based Self‐Charging System via the Near‐Infrared Band

Cited by 17 publications

References 33 publications

Colloidal quantum dot materials for next-generation near-infrared optoelectronics

Colloidal quantum dot materials for next-generation near-infrared optoelectronics

Unlocking the Potential of Colloidal Quantum Dot/Organic Hybrid Solar Cells: Band Tunable Interfacial Layer Approach

Biosynthesis of quantum dots and their usage in solar cells: insight from the novel researches

Contact Info

Product

Resources

About