TY - JOUR
T1 - Synergistic engineering of hole transport materials in perovskite solar cells
AU - Mabrouk, Sally
AU - Bahrami, Behzad
AU - Elbohy, Hytham
AU - Reza, Khan Mamun
AU - Gurung, Ashim
AU - Liang, Mao
AU - Wu, Fan
AU - Wang, Mingtai
AU - Yang, Shangfeng
AU - Qiao, Qiquan
N1 - Funding Information:
This work has been supported by NSF IGERT (DGE‐0903685), NSF MRI (1428992), NASA EPSCoR (NNX15AM83A), U.S. ‐ Egypt Science and Technology (S&T) Joint Fund, and Pakistan‐US Science and Technology Cooperation Program. This work is derived from the Subject Data supported in whole or part by NAS and USAID, and any opinions, findings, conclusions, or recommendations expressed in the paper are those of the authors alone, and do not necessarily reflect the views of USAID or NAS.
Funding Information:
information Pakistan-US Science and Technology Cooperation Program; U.S. - Egypt Science and Technology (S&T) Joint Fund; NASA EPSCoR, Grant/Award Number: NNX15AM83A; NSF MRI, Grant/Award Number: 1428992; NSF IGERT, Grant/Award Number: DGE-0903685This work has been supported by NSF IGERT (DGE-0903685), NSF MRI (1428992), NASA EPSCoR (NNX15AM83A), U.S. - Egypt Science and Technology (S&T) Joint Fund, and Pakistan-US Science and Technology Cooperation Program. This work is derived from the Subject Data supported in whole or part by NAS and USAID, and any opinions, findings, conclusions, or recommendations expressed in the paper are those of the authors alone, and do not necessarily reflect the views of USAID or NAS.
Publisher Copyright:
© 2019 The Authors. InfoMat published by John Wiley & Sons Australia, Ltd on behalf of UESTC.
PY - 2020/9
Y1 - 2020/9
N2 - In this work, methylammonium lead triiodide (CH3NH3PbI3) perovskite solar cells with efficiencies higher than 18% were achieved using a new nanocomposite hole transport layer (HTL) by doping poly(ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) with a mixed dopant of polyaniline (PANI) and graphene oxide (GO). A synergistic engineering between GO, PANI, and PEDOT:PSS was accomplished to introduce additional energy levels between perovskite and PEDOT:PSS and increase the conductivity of PEDOT:PSS. Kelvin probe force microscope results confirmed that adding GO to PEDOT:PSS/PANI composite significantly reduced the average surface potential. This increased the open circuit voltage (Voc) to 1.05 V for the GO/PEDOT:PSS/PANI nanocomposite perovskite solar cells from the pristine PEDOT:PSS (Voc = 0.95 V) and PEDOT:PSS/PANI (Voc = 0.99 V). In addition, adding PANI to the HTLs substantially enhanced short circuit current density (Jsc). This was supported by the current sensing-atomic force microscopy (CS-AFM) and conductivity measurements. The PANI doped films showed superior electrical conductivity compared with those without PANI as indicated by CS-AFM results. PANI can fill the gaps between the microflakes of GO and give rise to more compact hole transport material (HTM) layer. This led to a higher Jsc after doping with PANI, which was consistent with the incident photon-to-current efficiency and electrochemical impedance spectroscopy results. The results of X-ray diffraction (XRD) and AFM indicated the GO/PANI doped HTMs significantly improved the crystallinity, topography, and crystal size of the perovskite film grown on their surface. A higher efficiency of 18.12% for p-i-n perovskite solar cells has been obtained by adding the mixed dopant of GO, PANI, and PEDOT:PSS, demonstrating better stability than the pristine PEDOT:PSS cell. (Figure presented.).
AB - In this work, methylammonium lead triiodide (CH3NH3PbI3) perovskite solar cells with efficiencies higher than 18% were achieved using a new nanocomposite hole transport layer (HTL) by doping poly(ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) with a mixed dopant of polyaniline (PANI) and graphene oxide (GO). A synergistic engineering between GO, PANI, and PEDOT:PSS was accomplished to introduce additional energy levels between perovskite and PEDOT:PSS and increase the conductivity of PEDOT:PSS. Kelvin probe force microscope results confirmed that adding GO to PEDOT:PSS/PANI composite significantly reduced the average surface potential. This increased the open circuit voltage (Voc) to 1.05 V for the GO/PEDOT:PSS/PANI nanocomposite perovskite solar cells from the pristine PEDOT:PSS (Voc = 0.95 V) and PEDOT:PSS/PANI (Voc = 0.99 V). In addition, adding PANI to the HTLs substantially enhanced short circuit current density (Jsc). This was supported by the current sensing-atomic force microscopy (CS-AFM) and conductivity measurements. The PANI doped films showed superior electrical conductivity compared with those without PANI as indicated by CS-AFM results. PANI can fill the gaps between the microflakes of GO and give rise to more compact hole transport material (HTM) layer. This led to a higher Jsc after doping with PANI, which was consistent with the incident photon-to-current efficiency and electrochemical impedance spectroscopy results. The results of X-ray diffraction (XRD) and AFM indicated the GO/PANI doped HTMs significantly improved the crystallinity, topography, and crystal size of the perovskite film grown on their surface. A higher efficiency of 18.12% for p-i-n perovskite solar cells has been obtained by adding the mixed dopant of GO, PANI, and PEDOT:PSS, demonstrating better stability than the pristine PEDOT:PSS cell. (Figure presented.).
UR - http://www.scopus.com/inward/record.url?scp=85122081836&partnerID=8YFLogxK
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U2 - 10.1002/inf2.12062
DO - 10.1002/inf2.12062
M3 - Article
AN - SCOPUS:85122081836
VL - 2
SP - 928
EP - 941
JO - InfoMat
JF - InfoMat
SN - 2567-3165
IS - 5
ER -