TY - JOUR

T1 - Fine tuning the optoelectronic properties of Dibenzo[b,d]Furan-Centered linear hole transporting materials for perovskite solar cells

AU - Zahid, Waqar Ali

AU - Akram, Waqas

AU - Ahmad, Muhammad Fiaz

AU - Elmushyakh, Abraham

AU - Hossain, Ismail

AU - Ali, S. Eltahir

AU - Abo-Dief, Hala M.

AU - Alanazi, Abdullah K.

AU - Iqbal, Javed

N1 - The authors acknowledge the financial support from Taif University Researchers Supporting Project number ( TURSP- 2020/355 ), Taif University, Taif, Saudi Arabia. We Thank Dr. Khurshid Ayub, Department of Chemistry, COMSATS University, Islamabad, Abbottabad Campus, 22060, Pakistan for technical support and additional resources.

PY - 2023/7/1

Y1 - 2023/7/1

N2 - Perovskite solar cells (PSCs) have received a lot of interest recently due to their high efficiency, affordable manufacture, and band gap turn capacity. Reports on PSCs efficiency rose dramatically from its initial value of 3.8% in 2009 to 24% in 2022. The absence of suitable materials for hole transportation is a significant barrier to further improving efficiency. To be used as potential components of photovoltaic systems, we have designed a series of small molecules serving as hole transport materials (HTMs) namely MT1, MT2, MT3, MT4, MT5, and MT6 having dibenzo furan based donor core with end capped acceptor moieties linked by thiophene as a bridge. The photovoltaic and optoelectronic properties of the molecules have been investigated by comparing them to a reference molecule (R). All of the designed molecules (MT1-MT6) showed lower bandgaps (1.98 eV–2.61 eV) than reference molecule (3.81 eV), indicating improved electron density transfer. All designed molecules (MT1-MT6) have high open-circuit voltage (1.28 V–1.41 V) and downshifted peak occupied molecular orbital energies (−5.41 eV to −5.28 eV) when electron-withdrawing acceptor moieties are chosen. High dipole moments (5.18 D to 21.70 D) proved that designed molecules (MT1-MT6) are highly soluble and are anticipated to make it easier to fabricate multilayered films. All designed molecules have effective charge transport capabilities, as evidenced by the reorganization energy values. All HTMs (MT1-MT6) have higher FF (0.9032–0.9102) and superior power conversion efficiency of 27.40%–30.42% compared to R (24.62%). This study established the viability of fabricating high performance PSCs using all proposed molecules (MT1-MT6).

AB - Perovskite solar cells (PSCs) have received a lot of interest recently due to their high efficiency, affordable manufacture, and band gap turn capacity. Reports on PSCs efficiency rose dramatically from its initial value of 3.8% in 2009 to 24% in 2022. The absence of suitable materials for hole transportation is a significant barrier to further improving efficiency. To be used as potential components of photovoltaic systems, we have designed a series of small molecules serving as hole transport materials (HTMs) namely MT1, MT2, MT3, MT4, MT5, and MT6 having dibenzo furan based donor core with end capped acceptor moieties linked by thiophene as a bridge. The photovoltaic and optoelectronic properties of the molecules have been investigated by comparing them to a reference molecule (R). All of the designed molecules (MT1-MT6) showed lower bandgaps (1.98 eV–2.61 eV) than reference molecule (3.81 eV), indicating improved electron density transfer. All designed molecules (MT1-MT6) have high open-circuit voltage (1.28 V–1.41 V) and downshifted peak occupied molecular orbital energies (−5.41 eV to −5.28 eV) when electron-withdrawing acceptor moieties are chosen. High dipole moments (5.18 D to 21.70 D) proved that designed molecules (MT1-MT6) are highly soluble and are anticipated to make it easier to fabricate multilayered films. All designed molecules have effective charge transport capabilities, as evidenced by the reorganization energy values. All HTMs (MT1-MT6) have higher FF (0.9032–0.9102) and superior power conversion efficiency of 27.40%–30.42% compared to R (24.62%). This study established the viability of fabricating high performance PSCs using all proposed molecules (MT1-MT6).

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85150389024

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000957735200001

U2 - 10.1016/j.jpcs.2023.111337

DO - 10.1016/j.jpcs.2023.111337

M3 - Article

VL - 178

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

M1 - 111337

ER -