Abstract
In the current research paper, the hybrid organic–inorganic heterojunction device Au/NH2-MIL-125/p-Si/Al has been fabricated via an inexpensive spray pyrolysis technique. The electrical performance of the Au/NH2-MIL-125/p-Si/Al heterojunction has been investigated and analyzed by measuring the dark current–voltage at various ranges of the temperature range (303–403 K) and voltage (− 2 to 2 V). The important diode constants of the fabricated Au/NH2-MIL-125/p-Si/Al heterojunction like diode ideality factor (n), shunt resistance (Rsh), the series resistance (Rs), rectification factor (RF) and the effective barrier height ( $$ \phi_{\text{b}} $$ ) have been evaluated. Surprising findings appeared at room temperature, where the heterojunction presents a low series resistance of 17.14 kΩ and ideality factor of 3.06. Moreover, the results demonstrated that the device under the light with an intensity of 250 mW cm−2 produces a high short circuit current density (JSC) of 4.96 mA cm−2 and a solar efficiency (η) of 3.51%.
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