Evidence map›Paper›PMID 41477857›Full record

ArticleScience advances2026

Electronic trap detection with carrier-resolved photo-Hall effect.

Oki Gunawan, Chaeyoun Kim, Bonfilio Nainggolan, Minyeul Lee, Jonghwa Shin, Dong Suk Kim, Yimhyun Jo, Minjin Kim, Julie Euvrard, Douglas Bishop and 4 more

Abstract read
In one paragraph

Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Oki GunawanIBM T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.ORCID 0000-0002-7608-9262
Chaeyoun KimDept. of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.ORCID 0009-0005-5378-9900
Bonfilio NainggolanIBM T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.ORCID 0000-0002-6290-5759
Minyeul LeeDept. of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.ORCID 0009-0006-6410-1697
Jonghwa ShinDept. of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.ORCID 0000-0003-0712-464X
Dong Suk KimUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of Korea.ORCID 0000-0002-1230-340X
Yimhyun JoUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of Korea.ORCID 0000-0002-4129-5664
Minjin KimUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of Korea.ORCID 0000-0003-3308-416X
Julie EuvrardDept. of Physics and Centre for Processable Electronics, Imperial College London, London SW7 2AZ, UK.ORCID 0000-0002-8922-1437
Douglas BishopIBM T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.ORCID 0000-0002-2924-6376
Frank LibschIBM T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.
Teodor TodorovIBM T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.ORCID 0000-0003-3234-1611
Yunna KimDept. of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.ORCID 0009-0004-2875-3052
Byungha ShinDept. of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.ORCID 0000-0001-6845-0305

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electronic trap states critically affect the performance of semiconductor devices such as transistors, memory devices, and solar cells. Yet, conventional trap measurement techniques often require junction fabrication, which can introduce or alter traps. We present a unique photo-Hall-based method to characterize trap density and energy levels while concurrently extracting charge carrier properties. By analyzing photo-Hall conductivity versus electrical conductivity under varying light intensities and temperatures, we uncover an astonishingly simple hyperbola relationship that reveals detailed charge transport and trap occupation and applied it in silicon and halide perovskite films. This technique substantially expands Hall effect-based measurements by integrating electric, magnetic, photon, and phonon excitations into a single framework and enables unparalleled extraction of charge carrier and trap properties, offering a powerful tool for semiconductor characterization and device optimization.

Identifiers

PMID41477857
PMCPMC12757034

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.