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Title:Lattice-matched Ta3N5/Nb5N6 interface enables a bulk charge separation efficiency of close to 100%
Authors:ID Liu, Yitong (Author)
ID Fan, Zeyu (Author)
ID Li, Ronghua (Author)
ID Mavrič, Andraž (Author)
ID Arčon, Iztok (Author)
ID Valant, Matjaž (Author)
ID Kapun, Gregor (Author)
ID Zhang, Beibei (Author)
ID Feng, Chao (Author)
ID Zhang, Zemin (Author), et al.
Files:URL https://pubs.acs.org/doi/10.1021/acsenergylett.5c00603
 
URL https://pubs.acs.org/doi/pdf/10.1021/acsenergylett.5c00603
 
URL https://pubs.acs.org/doi/pdf/10.1021/acsenergylett.5c00603
 
Language:English
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:The interface between the semiconductor light absorber and the metal electrode is critical for facilitating the extraction of photogenerated charges in photoelectrodes. Achieving a lattice-matched semiconductor/electrode interface with low defect density is highly desirable but remains a challenge for Ta3N5 photoanodes. In this study, we synthesized niobium nitride thin film electrodes with controllable crystallographic phases to achieve a lattice-matched Ta3N5/Nb5N6 back contact. This results in an enhanced crystallinity of the Ta3N5 film and reduced interfacial defect density. Consequently, the photoanode with the lattice-matched back contact attains a record half-cell solar-to-hydrogen conversion efficiency of 4.1%, attributed to the bulk carrier separation efficiency of nearly 100%. This work highlights lattice-matching as an effective strategy to enhance the efficiency of thin film-based solar energy conversion devices.
Keywords:photoelectrochemistry, photoanode, interface, semiconductors
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2025
Year of publishing:2025
Number of pages:str. 1911-1920
Numbering:Vol. 10, issue 4
PID:20.500.12556/RUNG-9955 New window
COBISS.SI-ID:230684931 New window
ISSN:2380-8195
UDC:544.5/.6
ISSN on article:2380-8195
eISSN:2380-8195
DOI:10.1021/acsenergylett.5c00603 New window
NUK URN:URN:SI:UNG:REP:WN2TK8I9
Publication date in RUNG:28.03.2025
Views:357
Downloads:5
Metadata:XML DC-XML DC-RDF
:
LIU, Yitong, FAN, Zeyu, LI, Ronghua, MAVRIČ, Andraž, ARČON, Iztok, VALANT, Matjaž, KAPUN, Gregor, ZHANG, Beibei, FENG, Chao and ZHANG, Zemin, 2025, Lattice-matched ▫$Ta_3N_5/Nb_5N_6$▫ interface enables a bulk charge separation efficiency of close to 100%. ACS energy letters [online]. 2025. Vol. 10, no. 4, p. 1911–1920. [Accessed 22 April 2025]. DOI 10.1021/acsenergylett.5c00603. Retrieved from: https://pubs.acs.org/doi/pdf/10.1021/acsenergylett.5c00603
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Record is a part of a journal

Title:ACS energy letters
Shortened title:ACS energy lett.
Publisher:American Chemical Society
ISSN:2380-8195
COBISS.SI-ID:526893849 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Funding programme:Raziskovalni program
Project number:P1-0112
Name:Raziskave atomov, molekul in struktur s fotoni in delci
Funder:ARIS - Slovenian Research and Innovation Agency
Funding programme:Raziskovalni program
Project number:P2-0412
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J2-2498
Name:Redukcija ogljikovega dioksida na katalizatorju z izoliranimi atomi za tvorbo spojin z dodano vrednostjo
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J2-50058
Name:Sinergijski učinek disperzije žlahtnih kovin in interakcij med kovino in nosilcem v anionsko izmenjevalnih plastovitih kovinskih hidroksidih za učinkovito katalitsko hidrogeniranje CO2

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License:Other
Description:https://doi.org/10.15223/policy-029
Licensing start date:27.03.2025
License:Other
Description:https://doi.org/10.15223/policy-037
Licensing start date:27.03.2025
License:Other
Description:https://doi.org/10.15223/policy-045
Licensing start date:27.03.2025

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