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  <doc>
    <id>51798</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1252</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>7</issue>
    <volume>10</volume>
    <type>article</type>
    <publisherName>MDPI</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Hydrothermal Synthesis of Aqueous-Soluble Copper Indium Sulfide Nanocrystals and Their Use in Quantum Dot Sensitized Solar Cells</title>
    <abstract language="eng">facile hydrothermal method to synthesize water-soluble copper indium sulfide (CIS) nanocrystals (NCs) at 150 degrees C is presented. The obtained samples exhibited three distinct photoluminescence peaks in the red, green and blue spectral regions, corresponding to three size fractions, which could be separated by means of size-selective precipitation. While the red and green emitting fractions consist of 4.5 and 2.5 nm CIS NCs, the blue fraction was identified as in situ formed carbon nanodots showing excitation wavelength dependent emission. When used as light absorbers in quantum dot sensitized solar cells, the individual green and red fractions yielded power conversion efficiencies of 2.9% and 2.6%, respectively. With the unfractionated samples, the efficiency values approaching 5% were obtained. This improvement was mainly due to a significantly enhanced photocurrent arising from complementary panchromatic absorption.</abstract>
    <parentTitle language="eng">Nanomaterials</parentTitle>
    <identifier type="doi">10.3390/nano10071252</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-517983</identifier>
    <enrichment key="date_peer_review">10.12.2020</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>C.I.L. Santos</author>
    <author>W.S. Machado</author>
    <author>Karl David Wegner</author>
    <author>L.A.P. Gontijo</author>
    <author>J. Bettini</author>
    <author>M.A. Schiavon</author>
    <author>P. Reiss</author>
    <author>D. Aldakov</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Aqueous quantum dot</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Solar cells</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CUINS2 nanocrystals</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Colloidal semiconductor nanocrystals</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.2 Biophotonik</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <collection role="themenfelder" number="">Advanced Materials</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/51798/nanomaterials-10-01252-v3 (2).pdf</file>
  </doc>
  <doc>
    <id>64675</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>23</pageFirst>
    <pageLast>62</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>bookpart</type>
    <publisherName>John Wiley &amp; Sons Ltd.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Quantum Dot Material Systems, Compositional Families</title>
    <abstract language="eng">Following the discovery of the quantum confinement effect in the early 1980s, it took more than 10 years to be able to synthesize monodisperse colloidal quantum dots (QDs) using organometallic chemistry approaches. The researchers behind these pioneering works, Alexey Ekimov, Louis Brus, and Moungi Bawendi, were awarded the Nobel Prize in Chemistry in 2023, exactly 30 years after the seminal report on the preparation of cadmium chalcogenide QDs. From the synthetic point of view, this approach, relying on the fast injection of a chalcogenide precursor dissolved in a tertiary phosphine into a hot solution of the cadmium precursor in a coordinating solvent (trioctylphosphine oxide, TOPO) acting at the same time as surface ligand, was revolutionary. It enabled the fast synthesis of wellcrystallized CdS, CdSe, and CdTe QDs of low size dispersion and high colloidal stability, whose size and hence optical and electronic properties could be conveniently tuned with the reaction time. Due to the comparable ease of this method and the later developed shelling procedures with ZnS, ZnSe, CdS, and mixtures or alloys of these materials, CdSe has become the workhorse for the entire QD field, covering the whole visible range of absorption and emission.&#13;
Meanwhile, several breakthroughs have been achieved, which enabled us to bring QDs to their maturity of today and integrate them in several applications, in particular those relying on their exceptional luminescence properties, such as biological imaging as well as displays and screens. For such real-life applications, the quest for less toxic, safer-to-use, and environmentally friendly materials is of utmost importanceand a highly active research field. The use of cadmium- and lead-based materials is severely restricted by regulations such as the RoHS directive of the European Union: the maximum concentrations of lead and cadmium are 0.1 and 0.01% by weight, respectively, in all homogeneous materials in electrical and electronicequipment. Several families of alternative materials have been explored, with the most important ones for display technologies being indium phosphide (InP)- and ternary chalcopyrite-type QDs.</abstract>
    <parentTitle language="eng">Quantum Dot Display Science and Technology</parentTitle>
    <identifier type="isbn">978-1-394-18187-2</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>S. Tamang</author>
    <author>Karl David Wegner</author>
    <author>P. Reiss</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quantum dots</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Photoluminescence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LED</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Display technology</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.2 Biophotonik</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="themenfelder" number="">Advanced Materials</collection>
  </doc>
  <doc>
    <id>63482</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>14637</pageFirst>
    <pageLast>14646</pageLast>
    <pageNumber/>
    <edition/>
    <issue>24</issue>
    <volume>17</volume>
    <type>article</type>
    <publisherName>RSC</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Hydrothermal microwave synthesis of water soluble NIR-II emitting Ag2S quantum dots</title>
    <abstract language="eng">Hydrothermal-based synthetic methods of quantum dots allow for the exploration of reaction parameters normally inaccessible to typical aqueous-based batch reactions, such as elevated reaction temperatures (&gt;100 °C) and reaction pressures above atmospheric pressure. Coupled with microwave heating, new instantaneously bio-compatible quantum dots (QDs) with enhanced opitcal properties can be yielded. As of today, aqueous-based synthetic methods often lag behind their organic analogues in terms of the photophysical properties of the QDs obtained and the ease of modulation of both the emission wavelength and crystallite size. Using a novel microwave-assisted hydrothermal approach, the synthesis of silver sulphide (Ag2S) QDs exhibiting NIR emission spanning the biological transparency windows via modulation of the reaction parameters has been developed. The intrinsic link between their optical and structural properties is explored via laboratory and synchrotron-based structural analysis techniques. Their toxicity towards a hepatic cell line was assessed, and related back to their structure and size. Overall this work aims to not only further develop the repertoire of synthetic methods for the synthesis of Ag2S QDs, but also paves the way for the development of safer QDs suitable for future clinical applications.</abstract>
    <parentTitle language="eng">Nanoscale</parentTitle>
    <identifier type="doi">10.1039/d5nr00052a</identifier>
    <identifier type="issn">2040-3372</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-634825</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">25.06.2025</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>O. El-Dahshan</author>
    <author>A. Deniaud</author>
    <author>W. L. Ling</author>
    <author>Karl David Wegner</author>
    <author>O. Proux</author>
    <author>G. Veronesi</author>
    <author>P. Reiss</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quantum dots</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microwave synthesis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quality assurance</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>NIR-II emission</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PL quantum yield</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ag2S</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.2 Biophotonik</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <collection role="themenfelder" number="">Advanced Materials</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/63482/Ag2S_2025.pdf</file>
  </doc>
  <doc>
    <id>54880</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>7207</pageFirst>
    <pageLast>7211</pageLast>
    <pageNumber/>
    <edition/>
    <issue>19</issue>
    <volume>61</volume>
    <type>article</type>
    <publisherName>ACS Publications</publisherName>
    <publisherPlace>Washington, DC (USA)</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">One-Pot Heat-Up Synthesis of ZnSe Magic-Sized Clusters Using Thiol Ligands</title>
    <abstract language="eng">The synthesis of two new families of ZnSe magic-sized clusters (MSCs) is achieved using the thiol ligand 1-dodecanethiol in a simple one-pot heat-up approach. The sizes of the MSCs are controlled with the thiol ligand concentration and reaction temperature.</abstract>
    <parentTitle language="eng">Inorganic Chemistry</parentTitle>
    <identifier type="doi">10.1021/acs.inorgchem.2c00041</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">08.06.2022</enrichment>
    <author>Karl David Wegner</author>
    <author>I. Häusler</author>
    <author>Xenia Knigge</author>
    <author>Vasile-Dan Hodoroaba</author>
    <author>Franziska Emmerling</author>
    <author>P. Reiss</author>
    <author>Ute Resch-Genger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ZnSe</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Magic-sized cluster</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dodecanethiol</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Semiconductor nanocrystals</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>One-pot synthesis</value>
    </subject>
    <collection role="ddc" number="610">Medizin und Gesundheit</collection>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.2 Biophotonik</collection>
    <collection role="institutes" number="">6 Materialchemie</collection>
    <collection role="institutes" number="">6.1 Oberflächen- und Dünnschichtanalyse</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
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