Efficient perovskite solar cells employing a solution-processable copper phthalocyanine as a hole-transporting material

Jiang, Xiaoqing; Yu, Ze; Lai, Jianbo; Zhang, Yuchen; Lei, Ning; Wang, Dongping; Sun, Licheng

doi:10.1007/s11426-016-0393-5

Cited by 32 publications

(25 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For these reasons, CuPc has recently attracted considerable attention and has been applied in PSCs, exhibiting ab est efficiency of 16 %t ogetherw ith excellent long-term durability. [21,22] Very recently,m olecularly engineered zinc phthalocyanines (ZnPcs) have been developed as solutionprocessable HTMs in PSCs with an maximum PCE of 17.5 %. CuPc can be modified by introductiono fs ubstituents on the periphery of the macrocycle, which can facilitate the solubility.H owever, the use of solution-processableC uPc as aH TM in PSCs has been rarely reported thus far.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Engineering of Perovskite Solar Cells by Employing a Hydrophobic Copper Phthalocyanine Derivative as Hole‐Transporting Material with Improved Performance and Stability

Jiang

Lai

et al. 2017

ChemSusChem

Self Cite

View full text Add to dashboard Cite

In high-performance perovskite solar cells (PSCs), hole-transporting materials (HTMs) play an important role in extracting and transporting the photo-generated holes from the perovskite absorber to the cathode, thus reducing unwanted recombination losses and enhancing the photovoltaic performance. Herein, solution-processable tetra-4-(bis(4-tert-butylphenyl)amino)phenoxy-substituted copper phthalocyanine (CuPc-OTPAtBu) was synthesized and explored as a HTM in PSCs. The optical, electrochemical, and thermal properties were fully characterized for this organic metal complex. The photovoltaic performance of PSCs employing this CuPc derivative as a HTM was further investigated, in combination with a mixed-ion perovskite as a light absorber and a low-cost vacuum-free carbon as cathode. The optimized devices [doped with 6 % (w/w) tetrafluoro-tetracyano-quinodimethane (F4TCNQ)] showed a decent power conversion efficiency of 15.0 %, with an open-circuit voltage of 1.01 V, a short-circuit current density of 21.9 mA cm , and a fill factor of 0.68. Notably, the PSC devices studied also exhibited excellent long-term durability under ambient condition for 720 h, mainly owing to the introduction of the hydrophobic HTM interlayer, which prevents moisture penetration into the perovskite film. The present work emphasizes that solution-processable CuPc holds a great promise as a class of alternative HTMs that can be further explored for efficient and stable PSCs in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Interfacial Engineering of Perovskite Solar Cells by Employing a Hydrophobic Copper Phthalocyanine Derivative as Hole‐Transporting Material with Improved Performance and Stability

Jiang

Lai

et al. 2017

ChemSusChem

Self Cite

View full text Add to dashboard Cite

show abstract

“…The state-of-the-art high-performing PSC devices routinely incorporated hole-transporting materials (HTMs) as p-type contacts, which play a key role in extraction and collection of the photo-generated holes from the perovskites, and thus minimizing undesired recombination losses at the interfaces 9 . A broad range of HTMs have been developed and incorporated in PSCs, which are composed of organic hole-conductors and inorganic p-type semiconductors.…”

mentioning

confidence: 99%

High-Performance Regular Perovskite Solar Cells Employing Low-Cost Poly(ethylenedioxythiophene) as a Hole-Transporting Material

Jiang

Zhang

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

Herein, we successfully applied a facile in-situ solid-state synthesis of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) as a HTM, directly on top of the perovskite layer, in conventional mesoscopic perovskite solar cells (PSCs) (n-i-p structure). The fabrication of the PEDOT film only involved a very simple in-situ solid-state polymerisation step from a monomer 2,5-dibromo-3,4-ethylenedioxythiophene (DBEDOT) made from a commercially available and cheap starting material. The ultraviolet photoelectron spectroscopy (UPS) demonstrated that the as-prepared PEDOT film possesses the highest occupied molecular orbital (HOMO) energy level of −5.5 eV, which facilitates an effective hole extraction from the perovskite absorber as confirmed by the photoluminescence measurements. Optimised PSC devices employing this polymeric HTM in combination with a low-cost vacuum-free carbon cathode (replacing the gold), show an excellent power conversion efficiency (PCE) of 17.0% measured at 100 mW cm−2 illumination (AM 1.5G), with an open-circuit voltage (Voc) of 1.05 V, a short-circuit current density (Jsc) of 23.5 mA/cm2 and a fill factor (FF) of 0.69, respectively. The present finding highlights the potential application of PEDOT made from solid-state polymerisation as a HTM for cost-effective and highly efficient PSCs.

show abstract

“…The HOMO and LUMO energy levels of CuPc−DMP match well with the low‐lying valence band of perovskite (Figure ) and shows higher efficiency (17.1 %) than the traditional materials (spiro‐OMeTAD) (16.7 %). Cu−DMP based phthalocyanine shows higher conductivity (6.62×10 −5 S cm −1 ) and hole mobility (8×10 −5 cm 2 V −1 S −1 ) than the spiro‐OMETAD (2.24×10 −5 S cm −1 , 4.0×10 −5 cm 2 V −1 S −1 ) (Table and ) because Cu−DMP based phthalocyanine is highly crystalline, thermally stable and forms high quality films as comparedto traditional materials . It is believed that CuPc−DMP should be capable of extracting holes from the perovskites effectively.…”

Section: Macrocyclic Metal Complex Derivatives As Hole Transporting Mmentioning

confidence: 99%

Metallated Macrocyclic Derivatives as a Hole – Transporting Materials for Perovskite Solar Cells

Reddy

Devulapally

Islavath

et al. 2019

The Chemical Record

View full text Add to dashboard Cite

Spiro-OMeTAD is widely used as thehole-transporting material (HTM) in perovskite solar cells (PSC), which extracts positive charges and protects the perovskite materials from metal electrode, setting a new world-record efficiency of more than 20 %. Spiro-OMeTAD layer engross moisture leading to the degradation of perovskite, and therefore, has poor air stability. It is also expensive therefore limiting scale-up, so macrocyclic metal complex derivatives (MMDs) could be a suitable replacement. Our review covers low-cost, high yield hydrophobic materials with minimal steps required for synthesis of efficient HTMs for planar/mesostructured PSCs. The MMDs based devices demonstrated PCEs around 19 % and showed stability for a longer duration, indicating that MMDs are a promising alternative to spiro-OMeTAD and also easy to scale-up via solution approach. Additionally, this review describes how optical and electrical properties of MMDs change with chemical structure, allowing for the design of novel holemobility materials to achieve negligible hysteresis and act as effective functional barriers against moisture which results in a significant increase in the stability of the device. We provide an overview of the apt green-synthesis, characterization, stability and implementation of the various classes of macrocyclic metal complex derivatives as HTM for photovoltaic applications.

show abstract

Efficient perovskite solar cells employing a solution-processable copper phthalocyanine as a hole-transporting material

Cited by 32 publications

References 45 publications

Interfacial Engineering of Perovskite Solar Cells by Employing a Hydrophobic Copper Phthalocyanine Derivative as Hole‐Transporting Material with Improved Performance and Stability

Interfacial Engineering of Perovskite Solar Cells by Employing a Hydrophobic Copper Phthalocyanine Derivative as Hole‐Transporting Material with Improved Performance and Stability

High-Performance Regular Perovskite Solar Cells Employing Low-Cost Poly(ethylenedioxythiophene) as a Hole-Transporting Material

Metallated Macrocyclic Derivatives as a Hole – Transporting Materials for Perovskite Solar Cells

Contact Info

Product

Resources

About