Solution-Processed Short-Wave Infrared PbS Colloidal Quantum Dot/ZnO Nanowire Solar Cells Giving High Open-Circuit Voltage

A systematic investigation into the performance of PbS quantum dot (QD)/ZnO nanowire (NW) solar cells in the near-infrared (NIR) and short-wave infrared (SWIR) regions was carried out. The solar cells were confirmed to convert a wide range of solar energy (3.54–0.62 eV, corresponding to 0.35–2.0 μm). We found that the solar cells working in the SWIR region had a high open-circuit voltage (Voc). A relatively high Voc of 0.25 V was achieved even in solar cells whose photocurrent onsets were at approximately 0.64 eV (1.9 μm); this Voc is as high as that of Ge solar cells, which have been used for III–V compound semiconductor triple-junction solar cells. Although short-circuit current density and fill factor have to be further increased, these results indicate that solution-processed colloidal QD solar cells with ZnO NWs are promising candidates for the middle and/or bottom subcells of multijunction solar cells.

[1]  Shuchi Gupta,et al.  Breaking the Open-Circuit Voltage Deficit Floor in PbS Quantum Dot Solar Cells through Synergistic Ligand and Architecture Engineering , 2017 .

[2]  Yichun Liu,et al.  Bending-durable colloidal quantum dot solar cell using a ZnO nanowire array as a three-dimensional electron transport layer , 2017 .

[3]  Shin Woei Leow,et al.  Over 20% Efficient CIGS–Perovskite Tandem Solar Cells , 2017 .

[4]  Aram Amassian,et al.  Hybrid organic-inorganic inks flatten the energy landscape in colloidal quantum dot solids. , 2017, Nature materials.

[5]  J. Luther,et al.  Tandem Solar Cells from Solution-Processed CdTe and PbS Quantum Dots Using a ZnTe-ZnO Tunnel Junction. , 2017, Nano letters.

[6]  W. Warta,et al.  Solar cell efficiency tables (version 49) , 2017 .

[7]  M. Bawendi,et al.  Enhanced Photocurrent in PbS Quantum Dot Photovoltaics via ZnO Nanowires and Band Alignment Engineering , 2016 .

[8]  Andrew H. Proppe,et al.  Single-step colloidal quantum dot films for infrared solar harvesting , 2016 .

[9]  Kai Zhu,et al.  Towards stable and commercially available perovskite solar cells , 2016, Nature Energy.

[10]  Yichun Liu,et al.  Increased open‐circuit voltage of ZnO nanowire/PbS quantum dot bulk heterojunction solar cells with solution‐deposited Mg(OH)2 interlayer , 2016 .

[11]  Jong Min Kim,et al.  Highly Monodispersed PbS Quantum Dots for Outstanding Cascaded-Junction Solar Cells , 2016, ACS energy letters.

[12]  Anders Hagfeldt,et al.  Polymer-templated nucleation and crystal growth of perovskite films for solar cells with efficiency greater than 21% , 2016, Nature Energy.

[13]  Rebecca A. Belisle,et al.  Perovskite-perovskite tandem photovoltaics with optimized band gaps , 2016, Science.

[14]  Christophe Ballif,et al.  Efficient Near-Infrared-Transparent Perovskite Solar Cells Enabling Direct Comparison of 4-Terminal and Monolithic Perovskite/Silicon Tandem Cells , 2016 .

[15]  Oleksandr Voznyy,et al.  10.6% Certified Colloidal Quantum Dot Solar Cells via Solvent-Polarity-Engineered Halide Passivation. , 2016, Nano letters.

[16]  Feng Gao,et al.  Fullerene‐Free Polymer Solar Cells with over 11% Efficiency and Excellent Thermal Stability , 2016, Advanced materials.

[17]  Edward H. Sargent,et al.  Colloidal quantum dot solids for solution-processed solar cells , 2016, Nature Energy.

[18]  Itaru Osaka,et al.  High-efficiency polymer solar cells with small photon energy loss , 2015, Nature Communications.

[19]  Cherie R. Kagan,et al.  Charge transport in strongly coupled quantum dot solids. , 2015, Nature nanotechnology.

[20]  F. Fabregat‐Santiago,et al.  Enhanced Carrier Transport Distance in Colloidal PbS Quantum-Dot-Based Solar Cells Using ZnO Nanowires , 2015 .

[21]  F. Giordano,et al.  Spectral splitting photovoltaics using perovskite and wideband dye-sensitized solar cells , 2015, Nature Communications.

[22]  F. P. García de Arquer,et al.  Colloidal Quantum Dot Photovoltaics Enhanced by Perovskite Shelling. , 2015, Nano letters.

[23]  Oleksandr Voznyy,et al.  Infrared Colloidal Quantum Dot Photovoltaics via Coupling Enhancement and Agglomeration Suppression. , 2015, ACS nano.

[24]  Nam-Gyu Park,et al.  Highly Reproducible Perovskite Solar Cells with Average Efficiency of 18.3% and Best Efficiency of 19.7% Fabricated via Lewis Base Adduct of Lead(II) Iodide. , 2015, Journal of the American Chemical Society.

[25]  M. R. Kim,et al.  Towards high efficiency air-processed near-infrared responsive photovoltaics: bulk heterojunction solar cells based on PbS/CdS core-shell quantum dots and TiO2 nanorod arrays. , 2015, Nanoscale.

[26]  Tonio Buonassisi,et al.  Open-circuit voltage deficit, radiative sub-bandgap states, and prospects in quantum dot solar cells. , 2015, Nano letters.

[27]  T. Tatsuma,et al.  Efficiency Enhancement of PbS Quantum Dot/ZnO Nanowire Bulk-Heterojunction Solar Cells by Plasmonic Silver Nanocubes. , 2015, ACS nano.

[28]  J. Bisquert,et al.  High reduction of interfacial charge recombination in colloidal quantum dot solar cells by metal oxide surface passivation. , 2015, Nanoscale.

[29]  Hiroshi Segawa,et al.  PbS colloidal quantum dot/ZnO‐based bulk‐heterojunction solar cells with high stability under continuous light soaking , 2014 .

[30]  Aram Amassian,et al.  Air-stable n-type colloidal quantum dot solids. , 2014, Nature materials.

[31]  Gerasimos Konstantatos,et al.  Remote Trap Passivation in Colloidal Quantum Dot Bulk Nano‐heterojunctions and Its Effect in Solution‐Processed Solar Cells , 2014, Advanced materials.

[32]  Moungi G. Bawendi,et al.  Improved performance and stability in quantum dot solar cells through band alignment engineering , 2014, Nature materials.

[33]  Edward H Sargent,et al.  Charge-extraction strategies for colloidal quantum dot photovoltaics. , 2014, Nature materials.

[34]  Hiroshi Segawa,et al.  Small Photocarrier Effective Masses Featuring Ambipolar Transport in Methylammonium Lead Iodide Perovskite: A Density Functional Analysis. , 2013, The journal of physical chemistry letters.

[35]  Vanessa Wood,et al.  Quantification of deep traps in nanocrystal solids, their electronic properties, and their influence on device behavior. , 2013, Nano letters.

[36]  Joseph G. Tischler,et al.  Enhanced Open-Circuit Voltage of PbS Nanocrystal Quantum Dot Solar Cells , 2013, Scientific Reports.

[37]  Hiroshi Segawa,et al.  PbS-Quantum-Dot-Based Heterojunction Solar Cells Utilizing ZnO Nanowires for High External Quantum Efficiency in the Near-Infrared Region , 2013 .

[38]  S. Uchida,et al.  Wideband dye-sensitized solar cells employing a phosphine-coordinated ruthenium sensitizer , 2013, Nature Photonics.

[39]  Joel Jean,et al.  ZnO Nanowire Arrays for Enhanced Photocurrent in PbS Quantum Dot Solar Cells , 2013, Advanced materials.

[40]  J. Luther,et al.  Improvement in carrier transport properties by mild thermal annealing of PbS quantum dot solar cells , 2013 .

[41]  Ratan Debnath,et al.  Ordered Nanopillar Structured Electrodes for Depleted Bulk Heterojunction Colloidal Quantum Dot Solar Cells , 2012, Advanced materials.

[42]  E. Sargent,et al.  Colloidal quantum dot solar cells , 2012, Nature Photonics.

[43]  Aram Amassian,et al.  Colloidal-quantum-dot photovoltaics using atomic-ligand passivation. , 2011, Nature materials.

[44]  Jianbo Gao,et al.  Quantum dot size dependent J-V characteristics in heterojunction ZnO/PbS quantum dot solar cells. , 2011, Nano letters.

[45]  Ratan Debnath,et al.  Depleted-heterojunction colloidal quantum dot solar cells. , 2010, ACS nano.

[46]  Matt Law,et al.  Schottky solar cells based on colloidal nanocrystal films. , 2008, Nano letters.

[47]  Christoph J. Brabec,et al.  Design Rules for Donors in Bulk‐Heterojunction Solar Cells—Towards 10 % Energy‐Conversion Efficiency , 2006 .

[48]  E. Sargent.  Infrared Quantum Dots , 2005 .

[49]  M. Vaněček,et al.  Basic efficiency limits, recent experimental results and novel light-trapping schemes in a-Si:H, μc-Si:H and `micromorph tandem' solar cells , 2004 .

[50]  Takashi Minemoto,et al.  Theoretical analysis of the effect of conduction band offset of window/CIS layers on performance of CIS solar cells using device simulation , 2001 .

[51]  H. Queisser,et al.  Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells , 1961 .

[52]  Masafumi Yamaguchi,et al.  III–V compound multi-junction solar cells: present and future , 2003 .

[53]  D. Feucht.  Heterojunctions in photovoltaic devices , 1977 .