Evaluating the Impact of the Size of PbS Colloidal Quantum Dots on Photodetection Performance.

Freddy Garcia, Suraj Patel, Anthony Monterrosas, John Navarro, Seungbae Ahn, Oscar Vazquez-Mena

Abstract read

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Article in Nanomaterials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Freddy GarciaAiiso Yufeng Li Family Department of Chemical and Nano Engineering, Center for Memory and Recording Research, University of California San Diego, La Jolla, CA 92093, USA.ORCID 0000-0002-9514-5514

Suraj PatelAiiso Yufeng Li Family Department of Chemical and Nano Engineering, Center for Memory and Recording Research, University of California San Diego, La Jolla, CA 92093, USA.ORCID 0009-0002-0424-3360

Anthony MonterrosasAiiso Yufeng Li Family Department of Chemical and Nano Engineering, Center for Memory and Recording Research, University of California San Diego, La Jolla, CA 92093, USA.

John NavarroAiiso Yufeng Li Family Department of Chemical and Nano Engineering, Center for Memory and Recording Research, University of California San Diego, La Jolla, CA 92093, USA.

Seungbae AhnDivision of Electronics and Electrical Information Engineering, Korea Maritime and Ocean University, Busan 49112, Republic of Korea.ORCID 0000-0002-2115-061X

Oscar Vazquez-MenaAiiso Yufeng Li Family Department of Chemical and Nano Engineering, Center for Memory and Recording Research, University of California San Diego, La Jolla, CA 92093, USA.

Funding

U.S. National Science Foundation 2046176U.S. National Science Foundation ECCS-1542148

6 · The paper itself

Abstract

Colloidal quantum dots (CQDs) provide size-tunable optoelectronic properties, enabling broadband photodetection from the visible to the short-wave infrared (SWIR). However, CQD photodetector performance depends on different processes such as optical absorption, charge transport, and photogain mechanisms in CQD solids. Here, we investigate the impact of PbS CQD size on the electrical conductivity and photodetection performance of CQD films and hybrid graphene/CQD photodetectors. Three CQD sizes are studied: d~3.06 nm, d~3.78 nm, and d~5.27 nm, with exciton peaks at λ

Indexed as

colloidal quantum dotsgraphenephotodetectorsquantum dot film mobilitysize effect

Identifiers

PMID42726549

DOI10.3390/nano16171073

PMCPMC13567662

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.